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GEMD Gem Diamonds Limited

13.275
0.00 (0.00%)
07 May 2024 - Closed
Delayed by 15 minutes
Share Name Share Symbol Market Type Share ISIN Share Description
Gem Diamonds Limited LSE:GEMD London Ordinary Share VGG379591065 ORD USD0.01 (DI)
  Price Change % Change Share Price Bid Price Offer Price High Price Low Price Open Price Shares Traded Last Trade
  0.00 0.00% 13.275 13.05 13.20 0.00 01:00:00
Industry Sector Turnover Profit EPS - Basic PE Ratio Market Cap
Misc Nonmtl Minrls, Ex Fuels 140.29M -2.13M -0.0154 -8.47 18.01M

Gem Diamonds Limited Full Year 2019 Results (6963F)

11/03/2020 7:00am

UK Regulatory


Gem Diamonds (LSE:GEMD)
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TIDMGEMD

RNS Number : 6963F

Gem Diamonds Limited

11 March 2020

Wednesday, 11 March 2020

Gem Diamonds Limited

Full Year 2019 Results

Gem Diamonds Limited (LSE: GEMD) ("Gem Diamonds", the "Company" or the "Group") announces its Full Year Results for the year ending 31 December 2019 (the "Period").

FINANCIAL RESULTS:

   --      Revenue of US$182.0 million (US$267.3 million in 2018) 
   --      Underlying EBITDA from continuing operations of US$41.0 million (US$87.7 million in 2018) 
   --      Profit for the year from continuing operations US$15.0 million (US$52.4 million in 2018) 
   --      Attributable profit from continuing operations US$7.1 million (US$31.7 million in 2018) 
   --      Earnings per share from continuing operations 5.1 US cents (22.9 US cents in 2018) 

-- Cash on hand of US$11.4 million as at 31 December 2019 (US$9.2 million attributable to Gem Diamonds)

OPERATIONAL RESULTS:

Letšeng

   --      Carats recovered of 113 974 (126 875 carats in 2018) 
   --      Waste tonnes mined of 24.0 million tonnes (25.8 million tonnes in 2018) 
   --      Ore treated of 6.7 million tonnes (6.5 million tonnes in 2018) 
   --      Average value of US$1 637 per carat achieved (US$2 131 in 2018) 
   --      Eleven diamonds larger than 100 carats each recovered (fifteen in 2018) 

-- The highest dollar per carat achieved for a white rough diamond during the year was US$48 255 per carat

Lease renewal

The signing of the new mining lease in October 2019 secures Gem Diamonds' mining right at Letšeng until 2039. The new lease sees the royalty rate on diamond sales increase from 8% to 10%, shareholding in the mine remain unaltered (Gem Diamonds at 70% and Government of the Kingdom of Lesotho at 30%) and an increase in the number of work permits that may be granted.

Technology and innovation

With the construction of the pilot plant Gem Diamonds has made progress on the identification, validation and testing of technologies from various industries to complement its innovation drive of early detection and non-mechanical means of liberating diamonds.

Commenting on the results today, Clifford Elphick, Chief Executive Officer of Gem Diamonds, said:

"Gem Diamonds delivered solid operational results which together with the targeted gains of the Business Transformation programme and continued emphasis on cost controls, confirmed our status as one of the lowest-cost producers in the industry."

The operational results were characterised by the achievement of all guided operational metrics and the recovery of 11 diamonds greater than 100 carats each, which also brought the total number of diamonds of greater than 100 carats recovered at the Letšeng mine to 100. This, together with a 13.32 carat pink diamond that was recovered and sold for a Letšeng record of US$656 934 per carat, reaffirms the unique quality of the Letšeng production.

The Letšeng mining lease was renewed for an effective 20-year period which creates long-term stability for Letšeng. This, together with the continued emphasis on cost controls, positions the Company well for an upturn in the market for Letšeng's quality production which appears to have begun."

The Company will host a live audio webcast presentation of the full year results today, 11 March 2020, at 9:30 GMT. This can be viewed on the Company's website: www.gemdiamonds.com .

The page references in this announcement refer to the Annual Report and Accounts 2019, which can be found on the Company's website: www.gemdiamonds.com .

The Gem Diamonds Limited LEI number is 213800RC2PGGMZQG8L67

FOR FURTHER INFORMATION:

Gem Diamonds Limited

ir@gemdiamonds.com

Celicourt Communications

Mark Antelme / Joanna Parker

Tel: +44 (0) 208 434 2643

ABOUT GEM DIAMONDS:

Gem Diamonds is a leading global diamond producer of high value diamonds. The Company owns 70% of the Letšeng mine in Lesotho. The Letšeng mine is famous for the production of large, top colour, exceptional white diamonds, making it the highest dollar per carat kimberlite diamond mine in the world.

CHAIRMAN'S STATEMENT

Resilience in the face of tough economic conditions.

Dear shareholders,

On behalf of the Board, it gives me great pleasure to present to you the Gem Diamonds Annual Report and Accounts 2019, which provides an update on how we are progressing with delivery of the Company's strategic objectives and an overview of our activities during the year.

DEMONSTRATING RESILIENCE UNDER CHALLENGING CONDITIONS

The challenging operating and market conditions in 2019 required Gem Diamonds to demonstrate its resilience. The prolonged weakness in the rough diamond market affected producers across the industry. Drivers underlying this trend included an oversupply of rough diamonds and funding issues affecting buying patterns in the middle market. While the prices achieved for Letšeng's high-quality goods had held up in 2017 and 2018, during 2019 prices were impacted by the overall weakness in the market.

To offset this market weakness we focused our efforts firmly on controlling operating costs and delivering the commitments we made in 2018 under the Company's Business Transformation (BT) programme where we targeted material improvements in production and overhead costs and in improved efficiencies. The programme is on track to deliver the planned cumulative benefits of US$100 million by the end of 2021 with US$55 million realised to date. Gem Diamonds' position as a low-cost producer strengthens the Company's resilience and sustainability, as well as improving our ability to create long-term value for our stakeholders.

SAFE AND RESPONSIBLE WORKING ENVIRONMENT

There is nothing more important to me than ensuring that everyone goes home safely at the end of a day's work and a considerable proportion of the Board's deliberations are directed towards securing the safety and security of our colleagues and the integrity of our operations. We are committed to providing a safe, healthy and nurturing work environment for all our employees, contractors and visitors in pursuit of the target of zero harm.

We were therefore deeply saddened that Mr Abele Mtambo, a colleague from a sub-contracting company working at the Letšeng mine, lost his life in a tragic vehicle accident early in the year. Following the accident we have engaged extensively with all our contractors to ensure that the issues identified by the resulting investigation were resolved and we have provided appropriate support for Mr Mtambo's family.

SECURING THE FUTURE OF LET ENG MINE

Following a successful statutory negotiation process, the mining lease for Letšeng was renewed by the Government of the Kingdom of Lesotho for a period of 20 years (which includes a 10-year exclusive renewal option from 2029). The new lease agreement creates stability for all stakeholders in Letšeng and provides a modern framework for our partnership with the Government. It also secures the long-term future of the operation and provides support for the current drilling programme which aims to improve our understanding of the resources below the current pit.

The new lease agreement includes provisions aimed at developing the local mining industry. These were included to support government's stated intention to create a regulatory framework for the industry that can contribute significantly to the country's growth. We are committed to working with government to develop Lesotho's geological potential to support local communities and to foster skills development.

While Gem Diamonds' primary goal is to maximise the potential of the Letšeng deposit, doing so aligns with the interests of the Basotho nation through their government's 30% direct ownership of the mine.

INNOVATION AS A DRIVER OF VALUE

All business needs to innovate, and the Board regards the application of new ideas to improve operational and financial efficiency and effectiveness as pivotal to the success of the Letšeng mine.

Letšeng unearths some of the highest quality and largest diamonds anywhere on the planet, and the potential for and impact of diamond damage during crushing and extraction adversely affects the prices received for these diamonds. In 2019 the Group established a pilot plant to prove technology that would reduce diamond damage, improving yield and reducing operating costs. The project is on schedule and we look forward to providing more details to shareholders as the work progresses.

The Group is also in the process of incorporating the use of blockchain technology into its marketing activities to create greater transparency in the supply chain and to bring retail customers closer to the source of their diamond. The technology enables customers to connect with the story of their unique diamond and to understand the operational, social and environmental principles and processes that are applied in its production.

ENVIRONMENTAL PERFORMANCE

Gem Diamonds is committed to operating in the most environmentally responsible manner at all times and I am pleased to report to shareholders that there were no major or significant environmental incidents reported at any of our operations during the year. The high standard of our environmental, social and governance practices were recognised with the inclusion of the Company's shares in the FTSE4Good index once more.

DAM SAFETY

The safety and integrity of TSFs was brought into the spotlight after the recent failure of a number of major structures around the world. These failures highlighted awareness of the potential dangers if these structures are not correctly engineered, managed and monitored. Gem Diamonds takes a proactive approach in this matter to ensure that risks are fully understood at our water and TSFs, and that these structures are continuously managed according to international best practice. Dam safety is a standing agenda item at operational and Group Health, Safety, Social and Environment (HSSE) sub-Committee meetings and at Group Board meetings. More information on the Group's approach to dam safety management is available in our Sustainable Development Reporting Platform at www.gemdiamonds.com .

CONTRIBUTING TO COMMUNITY AND SOCIAL DEVELOPMENT

The Board understands that the Group's sustainability requires a responsible balance between the need to deliver returns for our investors and the need to deliver tangible benefits for local communities. We work closely with these communities to identify and implement meaningful social projects that improve community resilience, create viable and sustainable community income streams that last beyond the life of the mine, and improve education, skills and access to services and infrastructure in the areas in which we operate.

Investor Mining and Tailings Safety Initiative - Church of England(1)

   --      727 companies contacted for disclosure 
   --      Only 47% of companies responded 
   --      Companies who did respond represent 83% of the mining industry by market capitalisation 

(1) Information as at 8 March 2020.

Gem Diamonds voluntarily disclosed all relevant details of its TSFs.

In addition to the details available on the Group's website, more details on our facilities can be found under Gem Diamonds at http://tailing.grida.no/ .

Watch the video: www.gemdiamonds.com/video.php

GENERATING SUSTAINABLE RETURNS FOR OUR SHAREHOLDERS

Gem Diamonds takes a conservative approach to the allocation of capital and the Board is continuously assessing where and how capital should be applied. The current focus is on the twin objectives of ensuring the Letšeng mine has the sustaining capital required to maintain and improve its operational performance as well as strengthening the Group's balance sheet for the long-term benefit of shareholders. The Board's policy is to pay a dividend to shareholders when the financial strength of the Group permits, in line with our commitment to delivering sustainable shareholder returns. Based on the current financial position of the Company and the outlook for the global diamond market, the Board has decided that no dividend will be paid in respect of the 2019 financial year.

GOVERNANCE TO SUPPORT SUSTAINABLE VALUE CREATION

During 2019, the Board oversaw the review of the Company's governance policies and terms of reference in order to ensure that they are aligned with the requirements of the UK Corporate Governance Code 2018 as well as to our own commitment to high standards of governance. Read more on page 44.

During the year I was very pleased to welcome Ms Mazvi Maharasoa to the Board as a non-Executive Director. Mazvi brings considerable knowledge, experience and insight to the Board's deliberations on account of her long and distinguished career both in the diamond industry and as an advisor on corporate governance to government and industry bodies in Lesotho. It also facilitates improved decision-making by extending the Board's diversity.

The Board is committed to proactive and regular engagement with the Company's stakeholders to understand their views and to assess any concerns they may have. Mazvi was appointed as the Board representative with responsibility for engaging with communities, the Government of Lesotho and employees.

OUR PURPOSE

As a Board we need to ensure that Gem Diamonds' purpose extends beyond the Company to include the wider society within which we operate. As explained on page 1, we engaged and collectively cemented our purpose by articulating our vision as being "To support, develop and empower our people so that a meaningful, sustainable contribution can be made to the countries in which we operate; and we can deliver long-term value to our shareholders".

We achieve this purpose through collaboration with our employees and with the communities and governments of the countries in which we operate. As a Board, we monitor these working relationships very closely and we are satisfied that our values or 'the way we do things' are indeed aligned with our vision and purpose.

OUTLOOK

While the short-term outlook for the diamond market is unclear, we believe that in the longer-term demand for the unique high-value diamonds produced at Letšeng will remain firm. The mine is a well-established operation, is actively supported by the local communities and is looking confidently to the future now that agreement has been reached with our fellow shareholder - the Government of Lesotho, on the lease extension. With the main initiatives identified under the BT programme now well embedded and a continuous improvement programme in place, the Board's focus is shifting towards driving the innovation that can deliver improved value for shareholder.

APPRECIATION

I would like to thank my fellow Board members for their contribution and support during the period. On behalf of the Board, I would also like to thank the community leaders in our host communities and the Government of the Kingdom of Lesotho as our long-standing partners at Letšeng.

In closing, thank you to our employees for their efforts during the year. The resilience the Group demonstrated in the face of such challenging conditions is testament to our employees' dedication and commitment.

SECTION 172 OF THE UK COMPANIES ACT 2006

The Board considers the interests of the Group's employees and other stakeholders, including the impact of its activities on the community, environment and the Group's reputation, when making decisions. The Board, acting fairly between members, and acting in good faith, considers what is most likely to promote the success of the Group for its shareholders in the long term. Page 49 of this report summarises and cross-references the areas covered regarding:

-- how the views and interests of all our stakeholders were represented in the boardroom during the year;

   --      the Group's goals, strategy and business model; 
   --      how we manage risks; and 
   --      how we are responding to the UK Corporate Governance Code 2018. 

Stakeholder engagement is also detailed throughout the report.

Harry Kenyon-Slaney

Chairman

10 March 2020

VIABILITY STATEMENT

The Board has assessed the viability of the Group over a period significantly longer than 12 months from the approval of the financial statements in accordance with the UK Corporate Governance Code. The Board considers three years from the approval of the financial statements to be the most relevant period for consideration for this assessment given the Group's current position and the potential impact of the principal risks documented on pages 15 to 21 that could impact the Group's viability.

While the Group maintains a full business model, based predominantly on the life of mine (LoM) plan for Letšeng, the Group's annual business and strategic planning process also uses a three-year time horizon. This process is led by the CEO and involves all relevant functions including operations, technology and innovation, sales and marketing, finance, treasury and risk. The Board participates in the annual review process through structured Board meetings and annual strategic sessions. A three-year period provides sufficient and realistic visibility in the context of the industry and environment in which the Group operates, even though LoM, the mining lease tenure and available estimated reserves exceed three years.

The business and strategic plan reflects the Directors' best estimate of the Group's prospects. The Directors evaluated several additional scenarios to assess the potential impact on the Group by quantifying their financial impact and overlaying this on the detailed financial forecasts in the plan.

The Board's assessment of the Group's viability focused on the critical principal risks categorised within the strategic, external and operational risks, together with the potential effectiveness of the potential mitigations that management reasonably believes would be available to the Company over this period.

The scenarios tested considered the Group's revenue, EBITDA(1) , cash flows and other key financial ratios over the three-year period. The scenarios tested included the compounding effect of the factors below.

 
Effect                 Extent of    Related principal risks                Area of business model affected 
                     sensitivity 
                        analysis 
---------------  ---------------    -------------------------------------  ------------------------------------------- 
A decrease in                18% 
forecast rough                       *    Rough diamond demand and prices   *    Entire business model ie inputs, acti 
diamond revenue                                                            vities, outputs 
from reduced                                                                     and outcomes 
market prices                        *    Production interruption 
or production 
volumes 
                                     *    Knowledge of resource 
---------------  ---------------    -------------------------------------  ------------------------------------------- 
A strengthening               7% 
of local                              *    Currency volatility              *    Financial capital inputs and outcomes 
currencies to 
the US dollar 
from expected 
market 
forecasts 
---------------  ---------------    -------------------------------------  ------------------------------------------- 
Impact of           Full payment                                            *    Financial capital inputs 
amended tax               within      *    Cash generation 
assessment             viability 
being payable             period 
prior to the 
resolution of 
the objection 
lodged. 
Refer Note 
1.2.28, in the 
financial 
statements 
---------------  ---------------    -------------------------------------  ------------------------------------------- 
 

The Group's current net debt(2) position of US$10.2 million as at 31 December 2019 and available standby facilities of US$69.9 million would enable it to withstand the impact of these scenarios over the three-year period. This position is supported by the cash-generating nature of the Group's core asset, Letšeng, and its flexibility in adjusting its operating plans within the normal course of business.

Based on the robust assessment of the principal risks, prospects and viability of the Group, the Board confirms that it has a reasonable expectation that the Group will be able to continue in operation and meet its liabilities as they fall due over the three-year period ending March 2023.

(1) Refer Note 4, operating profit on page 130, for the definition of non-GAAP measures.

(2) Net debt is calculated as cash and short-term deposits less drawn down bank facilities (excluding asset-based finance facility).

PRINCIPAL RISKS AND UNCERTAINTIES

HOW WE APPROACH RISK

Effective identification, management and mitigation of the risks and uncertainties to which the Group is exposed are key to achieving the Company's strategic objectives and are core focus areas for the Group. These risks, if not appropriately managed and mitigated, could result in financial, operational and compliance impacts on the Group's performance, reputation and long-term growth.

The risk management framework combines top-down and bottom-up approaches with appropriate governance and oversight, as shown in the table below.

 
                                    BOARD OF DIRECTORS 
                   The Board is accountable for risk management within 
                         the Group. It provides stakeholders with 
                    assurance that key risks are properly identified, 
                       assessed, mitigated and monitored. The Board 
                    maintains a formal risk management policy for the 
                      Group and formally evaluates the effectiveness 
                   of the Group's risk management process. It confirms 
                      that the risk management process is accurately 
                     aligned to the Group's strategy and performance 
                                       objectives. 
                 ------------------------------------------------------- 
                                     AUDIT COMMITTEE 
                 ------------------------------------------------------- 
                      The Audit Committee monitors the Group's risk 
                       management processes, reviews the status of 
                   risk management, and reports on a biannual basis. It 
                       is responsible for addressing the corporate 
                    governance requirements of risk management and for 
                      monitoring each operational site's performance 
                                  with risk management. 
                 ------------------------------------------------------- 
                                      HSSE COMMITTEE 
                 ------------------------------------------------------- 
                    The HSSE Committee provides assurance to the Board 
                         that appropriate systems are in place to 
                   identify and manage health, safety and environmental 
                                          risks. 
                 ------------------------------------------------------- 
                                        MANAGEMENT 
                 ------------------------------------------------------- 
                  Management is accountable to the Board for developing, 
                        implementing, communicating and monitoring 
                   risk management processes and integrating them into 
                          the Group's day-to-day activities. It 
                     identifies risks affecting the Group, including 
                       internal and external, current and emerging 
                     risks. It implements appropriate risk responses 
                        consistent with the Group's risk appetite 
                                      and tolerance. 
                 ------------------------------------------------------- 
                                   GROUP INTERNAL AUDIT 
                 ------------------------------------------------------- 
   Oversight            Group Internal Audit formally reviews the 
                       effectiveness of the Group's risk management 
                                        processes. 
                   The outputs of risk assessments are used to compile 
                       the strategic three-year rolling and annual 
                      internal audit coverage plan and evaluate the                   Top-down approach - 
                                effectiveness of controls.                        setting the risk appetite and 
                                                                                      tolerances, strategic 
                                                                                  objectives and accountability 
                                                                                      for the management of 
                                                                                       the risk management 
   Governance                                                                               framework 
 
 
 
 
 
 
 
 
 
                                                                                      Bottom-up approach - 
                                                                           ensures a sound risk management process and 
 Responsibility                                                              establishes formal reporting structures 
                 ------------------------------------------------------- 
 

RISK MANAGEMENT FRAMEWORK

The Board and its Committees have identified the most material risks facing the Group, including strategic, operational and external risks, both current and emerging. These risks are actively monitored and managed and their impact, individually or collectively, could potentially affect the Group's ability to operate profitably and generate positive cash flows in the medium to long term. This year risk disclosure intentionally follows guidelines from the IIRC's <IR> Framework to clarify between inherent and residual risk, indicate risk movements, and link the areas of the business model and strategy to each risk.

Gem Diamonds' risk management framework focuses on risk identification and mitigation. Many factors that give rise to these risks also offer opportunities. The Group continues to monitor existing and emerging opportunities and will incorporate them into the strategy where they support the Group's vision.

 
Risk type     External                                                     Operational                                                 Strategic and operational                                  Operational                                                  Operational                                                  Strategic                                                  Operational 
Description   Rough diamond demand and prices                              Diamond damage                                              Knowledge of the resource                                  Cash generation                                              Security of product                                          Growth and return to shareholders                          Workforce 
              -----------------------------------------------------------  ----------------------------------------------------------  ---------------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  ---------------------------------------------------------  ----------------------------------------------------------- 
Impact        Numerous factors beyond the control of the Group may affect  Letšeng's valuable Type II diamonds are highly         Letšeng's low grade orebodies (average carats         Reduced cash flows may negatively affect the Group's         Theft is an inherent risk in the diamond industry. The       The volatility of the Group's share price and lack of      Achieving the Group's objectives and sustainable growth 
              the price and demand for diamonds.                           susceptible to damage during the mining                     recovered per tonne of ore processed) and                  ability to effectively operate, repay                        high-value nature of the product at                          growth negatively impacts the Group's                      depends on its ability to attract 
              These factors include international economic and political   and recovery process.                                       its dependence on the regular recovery of large            debt and fund capital projects.                              Letšeng could result in theft and significant losses    market capitalisation. Constrained cash flows also add     and retain key suitably qualified and experienced 
              trends, as well as consumer trends.                                                                                      high-quality diamonds makes the operation                                                                               which will negatively affect revenue                         pressure on returns to shareholders.                       personnel. Gem Diamonds operates in an environment 
              Even though the medium to long-term demand is forecast to                                                                sensitive to resource variability. Mineral resource        The risk is directly impacted by other principal risks such  and cash flows.                                                                                                         and industry where experience and skills shortages are 
              outpace supply, in the short term                                                                                        underperformance affects the Group's ability               as rough diamond demand and prices,                                                                                       The Group currently relies on a single mine for its        prevalent, and in jurisdictions with 
              the prevailing climate of global economic uncertainty and                                                                to operate profitably.                                     diamond damage, knowledge of the resource and security of                                                                 revenues, profits and cash flows.                          localisation policies. 
              liquidity constraints within the                                                                                                                                                    product. 
              diamond sector is causing pressure in rough diamond 
              pricing. These trends are discussed on 
              page 6 and directly affect Gem Diamonds' cash flows and 
              EBITDA and its ability to fund operations, 
              projects and growth plans. 
              -----------------------------------------------------------  ----------------------------------------------------------  ---------------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  ---------------------------------------------------------  ----------------------------------------------------------- 
Opportunity   Additional viewings in new areas could introduce new         Improvements to blasting techniques and introducing new     Improving knowledge of the orebody through bulk sampling,  Cash constraints drive more efficient capital allocation     Advanced security control measures increase employees' and   Delivery on the strategy should improve cash flows,        Retaining skills and continuous improvement initiatives 
if managed    clients and improve prices realised.                         technology can reduce damage, thereby                       geological mapping and ahead of                            and cost disciplines.                                        product's safety and improves revenue.                       reinforce the balance sheet strength and                   build the Group's human capital and 
                                                                           improving value recovered.                                  face drilling supports effective forecasting and the                                                                                                                                 improve shareholder returns, thereby strengthening Gem     can create a competitive advantage. 
                                                                                                                                       ability to plan accurately and optimally,                                                                                                                                            Diamonds' position in the industry. 
                                                                                                                                       which will improve operating efficiencies and cash flows. 
              -----------------------------------------------------------  ----------------------------------------------------------  ---------------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  ---------------------------------------------------------  ----------------------------------------------------------- 
Key 
priorities      *    Extracting maximum value from our operations            *    Extracting maximum value from our operations           *    Extracting maximum value from our operations          *    Extracting maximum value from our operations            *    Extracting maximum value from our operations            *    Extracting maximum value from our operations          *    Extracting maximum value from our operations 
 
 
                *    Preparing for our future                                *    Preparing for our future                               *    Preparing for our future                              *    Preparing for our future                                *    Working responsibly and maintaining our social          *    Preparing for our future                              *    Working responsibly and maintaining our social 
                                                                                                                                                                                                                                                                      licence                                                                                                                 licence 
 
 
                                                                                                                                                                                                                                                                                                                                                                                         *    Preparing for our future 
              -----------------------------------------------------------  ----------------------------------------------------------  ---------------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  ---------------------------------------------------------  ----------------------------------------------------------- 
Area of 
business        *    Funding the business model                              *    Increase diamond pricing                              *    Natural capital inputs and outputs of carats           *    Funding the business model                              *    Outputs of carats recovered                             *    Viability of business model and financial capital    *    Human, intellectual and financial capital inputs into 
model                                                                                                                                        recovered                                                                                                                                                                                                                                       the business model 
affected 
                *    Sales and marketing activities                          *    Outputs of carats recovered                                                                                                                                                    *    Increase financial outputs 
                                                                                                                                        *    LoM affects the long-term viability of the business 
                                                                                                                                             model 
                *    Chosen distribution channels                            *    Reduced financial inputs                                                                                                                                                       *    Human capital and safety outcomes 
 
 
                                                                             *    Increased financial outputs 
              -----------------------------------------------------------  ----------------------------------------------------------  ---------------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  ---------------------------------------------------------  ----------------------------------------------------------- 
Mitigation 
               *    Monitoring market conditions and trends                 *    Continuous diamond damage monitoring and analysis to   *    Furthering orebody knowledge through various bulk     *    Reassessment of capital expenditure and operational     *    An advanced security access control and surveillance    *    Group strategy review performed with objective of     *    Human resources practices are designed to identify 
                                                                                 identify opportunities to reduce diamond damage             sampling programmes, combined with geological mappi        strategies                                                   system is in place complimented by off-site                  improving the share price through:                         skills shortages and implement development programmes 
                                                                                                                                       ng                                                                                                                            surveillance                                                                                                            and succession planning for employees. 
               *    Flexibility in sales processes and the utilisation of                                                                    and modelling methods 
                    multiple sales and marketing channels, and increased    *    An online system is in place to monitor plant                                                                     *    Treasury management practices in place                                                                               *    Renewing the Letšeng mining lease 
                    viewing opportunities                                        parameters and evaluate trends within the treatment                                                                                                                            *    Zero tolerance on non-conformance to policy and                                                                    *    Incentives are in place to retain key individuals 
                                                                                 process                                                *    Improving confidence in ore volumes and grades per                                                                      regulations                                                                                                             through performance-based bonus and long-term share 
                                                                                                                                             rock type through grade control, reduced ore blendi   *    Access to available facilities                                                                                       *    Delivering the BT target                                   awards. 
               *    Reassessing capital projects and operational plans to                                                              ng, 
                    align with market conditions and preserve cash          *    An on-mine Diamond Value Management Committee               increased bulk sampling, measuring (density and                                                                    *    The Diamond Recovery Protection Committee (a 
                    balances                                                     oversees and drives the focus of overall value              moisture content), regularly updating geological      *    Delivering of BT targets                                     sub-Committee of the Letšeng Board) monitors       *    Reviewing capital allocation                          *    Remuneration committees are set-up at a subsidiary 
                                                                                 recovery                                                    models, monitoring and controlling external and                                                                         security process effectiveness                                                                                          level, which review current remuneration policies, 
                                                                                                                                             internal dilution and waste rafts and focusing on                                                                                                                                                                                               skills and succession planning. 
                                                                                                                                             waste management                                      *    Regular review of the mine plan to optimise cash flow                                                                *    Implementing early identification and anti-breakage 
                                                                                                                                                                                                        and to identify rescheduling opportunities              *    Appropriate diamond specie insurance cover in place          technology 
 
                                                                                                                                        *    Improving understanding of diamond populations, siz 
                                                                                                                                       e                                                                                                                        *    Regular vulnerability assessments complimented with     *    Assessing diversification opportunities 
                                                                                                                                             frequency distributions and value profiles per                                                                          internal and independent third-party assurance audits 
                                                                                                                                             kimberlite type through rigorous daily and monthly                                                                      undertaken 
                                                                                                                                             data plotting and trend analysis. 
              -----------------------------------------------------------  ----------------------------------------------------------  ---------------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  ---------------------------------------------------------  ----------------------------------------------------------- 
Heatmap key   1                                                            2                                                           3                                                          4                                                            5                                                            6                                                          7 
              -----------------------------------------------------------  ----------------------------------------------------------  ---------------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  ---------------------------------------------------------  ----------------------------------------------------------- 
Risk          Increased                                                    Decreased                                                   Increased                                                  Increased                                                    Decreased                                                    Increased                                                  No change 
 exposure 
              -----------------------------------------------------------  ----------------------------------------------------------  ---------------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  ---------------------------------------------------------  ----------------------------------------------------------- 
 
 
Risk type     External and operational                                     Operational                                           External                                                     Operational                                                  External and operational                                     Operational                                                External 
Description   Environmental                                                Sustainability of Business Transformation             Social licence to operate                                    Production interruption                                      Information Technology Systems (IT) and cybersecurity        Health and safety                                          Currency volatility 
              -----------------------------------------------------------  ----------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  ---------------------------------------------------------  ------------------------------------------------------- 
Impact        Climate and environmental issues, such as recent dam         The BT process identified savings and efficiencies    Gem Diamonds' social licence to operate arises from the      Material mine and/or plant shutdowns or periods of           The Group's operations rely on secure IT systems to process  The risk that a major health or safety incident, such as   The Group receives its revenue in US dollars, and costs 
              failures, are recognised as top global                       of US$100 million over four years from                approval of its stakeholders, particularly                   decreased production could arise from various                and record financial and operating                           recent dam failures, may occur within                      are incurred in the local currency 
              risks by the World Economic Forum and investors are          2018, with ongoing sustainable benefit of US$30       employees, regulators, communities and society, to conduct   events. These events could lead to personal injury or        data in its information management systems. If these IT      the Group is inherent in mining operations. These risks    of the countries in which the Group operates. 
              increasingly focussed on environmental                       million per annum from 2022 onwards. The              its business. This approval is                               death, environmental impacts, damage                         systems are compromised, there could                         could impact the wellbeing of employees, 
              performance.                                                 sustainability                                        an outcome of the way the Group manages issues such as       to infrastructure and delays in mining and processing        be a material adverse impact on the Group.                   our licence to operate, the Company's reputation and       Exchange rate volatility between these currencies and 
                                                                           of the BT benefit is highly dependent on              ethics, labour practices and sustainability                  activities and could potentially result                                                                                   compliance with debt facility agreements.                  the US dollar impacts the Group's profitability 
              Failure to manage vital natural resources, environmental     organisational health, change management, skills,     in our wider environment, as well as our risk management     in monetary losses and possible legal liability.                                                                                                                                     and cash flow. 
              regulations and pressure from neighbouring                   workforce motivation and behaviour and contract       and engagement activities with stakeholders. 
              communities can affect the Group's ability to operate        renegotiations.                                                                                                    The Group relies on the use of external contractors in its 
              sustainably.                                                                                                                                                                    mining and processing activities. 
                                                                           Failure to sustain the savings identified could                                                                    Disputes with these contractors could materially impact the 
                                                                           impact the Group's cash resources.                                                                                 Group's operations. 
              -----------------------------------------------------------  ----------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  ---------------------------------------------------------  ------------------------------------------------------- 
Opportunity   Responsible environmental stewardship improves               Delivery of the BT target improves cash flow,         Realising the Group's vision to make a meaningful and        Operating at or near steady state levels, improve            IT solutions such as machine learning and artificial         Improving employee health and wellness can increase        Earning capability in currencies stronger than 
if managed    relationships with regulators and communities                credibility and positions the Group ahead of          sustainable contribution to the countries                    efficiencies due to stability of production.                 intelligence could provide an opportunity                    morale, reduce absenteeism and improve                     currencies in which operational costs are incurred 
              while strengthening our brand. Increased investor focus on   the industry.                                         in which we operate builds Gem Diamonds' reputation with                                                                  to assess mining and processing practices which could        productivity. Ensuring that effective safety policies and  result in maximum financial benefit to Letšeng. 
              environmental responsibility could                                                                                 government, regulators, communities                          Focused contract management impacts positively on cash       improve efficiencies and diamond recoveries.                 processes are in place reduces risk 
              translate into a competitive advantage.                                                                            and investors.                                               generation through improved procurement                                                                                   to our workforce, strengthens our relationships with 
                                                                                                                                                                                              and contract renegotiation practices.                        Technologies such as blockchain offer opportunities to       employees and regulators, and safeguards 
                                                                                                                                                                                                                                                           create value in the Group's sales and                        the Group's reputation. 
                                                                                                                                                                                                                                                           marketing channels (see page 38). 
              -----------------------------------------------------------  ----------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  ---------------------------------------------------------  ------------------------------------------------------- 
Key 
priorities      *    Extracting maximum value from our operations           *    Extracting maximum value from our operations      *    Working responsibly and maintaining our social          *    Extracting maximum value from our operations            *    Extracting maximum value from our operations            *    Extracting maximum value from our operations          *    Extracting maximum value from our operations 
                                                                                                                                        licence 
 
                *    Working responsibly and maintaining our social         *    Working responsibly and maintaining our social                                                                 *    Working responsibly and maintaining our social          *    Preparing for our future                                *    Working responsibly and maintaining our social 
                     licence                                                     licence                                           *    Preparing for our future                                     licence                                                                                                                   licence 
 
 
                *    Preparing for our future                               *    Preparing for our future 
              -----------------------------------------------------------  ----------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  ---------------------------------------------------------  ------------------------------------------------------- 
Area of                                                                                                                                                                                                                                                                                                                                                                             *    Financial capital inputs and outcomes 
business        *    Natural capital inputs into the business model and      *    Entire business model                            *    Social capital and viability of business model          *    Reduced operational activity could lead to a decline    *    Entire business model                                  *    Social, relational and human capital and viability 
model                negative outcomes in the case of environmental                                                                                                                                  in financial capital and outputs                                                                                   of 
affected             incidents                                                                                                                                                                                                                                                                                                business model if outcomes are negative 
 
                                                                                                                                                                                                *    Negative outcomes decline natural and human capital. 
              -----------------------------------------------------------  ----------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  ---------------------------------------------------------  ------------------------------------------------------- 
Mitigation 
               *    Implemented appropriate Sustainability and              *    Dedicated BT task team                           *    Appropriate health, safety and sustainability           *    Continuous review of business continuity plans          *    Application of technical and process IT controls in     *    Implemented appropriate Health and Safety policies    *    A framework to enter into short-term hedging 
                    Environmental policies which are subject to a                                                                      policies are in place and subject to continuous                                                                           line with industry-accepted standards                        and practices which are subject to continuous              instruments is in place 
                    continuous improvement review                                                                                      improvement reviews                                                                                                                                                                    improvement reviews 
                                                                            *    Monitoring through weekly cadence meetings                                                                    *    A bespoke contract management role has been fulfilled 
                                                                                                                                                                                                    to ensure proper contract management and minimise the   *    Appropriate back-up procedures are in place                                                                        *    Appropriate treasury management procedures are in 
               *    The current behaviour-based care programme instils                                                            *    The new mining lease caters for appropriate CSI spend        potential for disputes                                                                                               *    Corrective actions identified from incident                place 
                    environmental stewardship                               *    Delivered US$55 million to date, with medium/l                                                                                                                                                                                               investigations and internal and external audits are 
                                                                           ow risk                                                                                                                                                                          *    Firewalls and other appropriate security applications        implemented timeously 
                                                                                 of delivering remaining balance.                 *    Adopted a UN SDG framework                              *    Maintaining appropriate insurance                            are in place 
               *    A climate change adaptation plan has been implemented 
                                                                                                                                                                                                                                                                                                                         *    A dam safety management framework has been 
                                                                                                                                                                                               *    Maintaining appropriate levels of resources (fuel,      *    Regular testing of back-up restorations are performed        implemented 
               *    A dam safety management framework has been                                                                                                                                      stockpiles etc.) to mitigate certain production 
                    implemented                                                                                                                                                                     interruptions 
                                                                                                                                                                                                                                                            *    Consultations with professional external advisors       *    ISO 45001 accreditation obtained. 
                                                                                                                                                                                                                                                                 take place when there is a need to better understand 
               *    Annual social and environmental management plan                                                                                                                            *    Improvements implemented in the management of                evolving risks and any mitigating factors to be 
                    (SEMP) audit program has been implemented                                                                                                                                       contractors' procurement practices.                          implemented. 
 
 
               *    ISO 14001 accreditation obtained 
 
 
               *    Adopted a UN SDG framework 
              -----------------------------------------------------------  ----------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  ---------------------------------------------------------  ------------------------------------------------------- 
Heatmap key   8                                                            9                                                     10                                                           11                                                           12                                                           13                                                         14 
              -----------------------------------------------------------  ----------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  ---------------------------------------------------------  ------------------------------------------------------- 
Risk          New separately defined risk                                  Decreased                                             New separately defined risk                                  Decreased                                                    New separately defined risk                                  Increased                                                  Decreased 
 exposure 
              -----------------------------------------------------------  ----------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  -----------------------------------------------------------  ---------------------------------------------------------  ------------------------------------------------------- 
 

ENGAGING OUR STAKEHOLDERS ON RISK

S172 (1)(a)-(f)

Risk disclosure

Selected Board members and senior executives collaborated and engaged with external consultants on the most effective manner to provide transparent risk disclosure.

2 - Diamond damage

The Board and executive management regularly engage with experts regarding improvements in mining and treatment processes.

3 - Knowledge of the resource

The Board and executive management engaged SRK Consulting Canada on several matters relating to geological modelling to gain knowledge of the resource.

4 - Cash generation

The Board and executive management regularly engage with lenders by providing transparent performance results to maintain good relationships and secure additional external facilities.

6 - Growth and return to shareholders

The Board engages analysts and investors through briefing sessions, update statements, research and events to provide performance feedback and updates on remuneration resolutions. Institutional investors required disclosure on auditor effectiveness and material non-audit fees. Please refer to page 59.

10 - Social licence to operate

The Board ensures an appropriate stakeholder engagement framework exists, including a grievance management plan to ensure stakeholder input without fear of retribution.

Engaging the industry and government

-- Letšeng Diamonds is a member of the Lesotho Chamber of Mines which was formally registered and meets regularly

-- Letšeng Diamonds provides regular compliance feedback to various departments within government

Engaging PACs

The Group actively participates and invests in Corporate Social Initiatives for its project-affected communities (PACs), in accordance with a needs analysis informed investment strategy.

Community representatives sit on the operational corporate social responsibility (CSR) committees.

EMERGING RISKS

The assessment of emerging risks is embedded within the risk management function of each operation. Emerging risks identified during these assessments are reported to the subsidiary boards on a structured quarterly basis and to the corporate office as they are identified.

Management evaluates emerging risks and presents them to the Board for consideration and evaluation.

Emerging risks are risks that:

   --      are likely to materialise or impact over a longer timeframe than existing risks; 
   --      do not have much to reference to by means of prior experience; and 

-- are likely to be assessed and monitored against vulnerability, velocity and preparedness when determining likelihood and impact.

The current emerging risks on the Group's radar are:

   --      lab-grown diamonds; (15) 
   --      generational shifts in consumer preferences - social influencers; (16) 
   --      the rate of advancement of digital technologies such as blockchain; (17) 
   --      future workforce (automation, skills for the future etc.); (18) and 

-- Covid-19 (coronavirus): The sudden outbreak of the virus has the potential to create short-term uncertainty in global markets and to disrupt the viewing of diamonds to be sold at upcoming tenders, which can negatively affect demand and price. In addition, it could also impact the availability and cost of imported goods required for mining operations. The risk is monitored and mitigated in conjunction with the current principle risks relating to 'rough diamond demand and prices' and 'production interruption'. (19)

CHIEF EXECUTIVE'S REVIEW

Gem Diamonds concentrated on delivering operational excellence and managing the factors over which we have control, solidifying our status as one of the lowest-cost and safest diamond producers in the industry.

Rough diamond prices were under severe pressure during 2019 with the over supply of most categories of rough and polished diamonds. Events in Hong Kong affected turnout at the major trade shows for diamonds and credit provision to diamond manufacturers tightened considerably, reducing the ability of our direct customers to finance stock purchases, leading to a surplus of diamond stocks in the manufacturing sector. While the performance of shares in diamond companies has traditionally followed US stock markets, diamond mining companies' shares were under pressure during 2019, regardless of individual performance.

In these challenging circumstances, Gem Diamonds concentrated on delivering operational excellence and managing the factors over which we have control. It is significant that Gem Diamonds achieved all its operational guidance metrics for 2019. Moreover, operating costs per tonne were the lowest for the past three years.

EXTRACTING MAXIMUM VALUE FROM OUR OPERATIONS

Despite the challenging conditions, Gem Diamonds delivered positive results, including the recovery of 11 diamonds greater than 100 carats (2018: 15). These recoveries also brought the total number of diamonds of greater than 100 carats each to 100, since Gem Diamonds took ownership of Letšeng in July 2006. Early in the year, a 13.32 carat pink diamond was recovered that sold for a Letšeng record of US$656 934 per carat, reaffirming the quality of the mine's production.

In the context of the decline in the overall diamond market, the average price achieved decreased 23% to US$1 637 per carat (2018: US$2 131 per carat) from the sale of 111 292 carats (2018: 125 111). The additional tender viewings in Tel Aviv, introduced in 2017, increased flexibility and improved sales values realised, while providing a valuable opportunity to interact with customers and investors. The new customised electronic tender platform that was launched in September 2019 has been successfully integrated. It offers an enhanced client experience and improved internal efficiencies.

The volume of tonnes treated for the year increased 3% year on year and the plants continue to focus on enhancing value over volume. Carats recovered decreased 10% to 113 974 (2018: 126 875), mainly due to the planned limited contribution of the higher-grade, high-value Satellite pipe material during the year. This was the result of Letšeng transitioning into a new cutback within the pipe to accommodate future increases in contribution from this high-value pipe. More information on Letšeng's operational performance is available on page 33.

Revenue decreased 32% to US$182.0 million (2018: US$267.3 million), which translated into underlying EBITDA(1) of US$41.0 million and earnings per share of 5.1 US cents. Although the Group returned to a cash generative position in Q4 2019, cash flow from operations decreased 60% to US$55.5 million during 2019, resulting in net debt at year-end of US$10.2 million, compared to net cash(2) of US$17.5 million at the end of 2018. The Group's financial results are discussed in detail in the Group Financial Performance report on page 26.

The Business Transformation (BT) programme is delivering its targeted gains and is on track to achieve the goal of US$100 million in cost savings and efficiencies by the end of 2021, as well as the sustainable annual net benefit of US$30 million from 2022 onwards. The elements of the BT programme and progress against its objects are discussed on page 40. The programme has been instrumental in reducing costs and improving efficiencies in the Group since it was initiated in 2017 and Gem Diamonds' improved position on the global cost curve demonstrates the benefits of the programme. The next phase of the optimisation strategy involves the transition to continuous improvement (CI).

(1) Refer Note 4, operating profit on page 130 for the definition of non-GAAP measures.

(2) Net cash/debt is a non-GAAP measure and calculated as cash and short-term deposits less drawn down bank facilities (excluding asset-based finance facility).

WORKING RESPONSIBLY AND MAINTAINING OUR SOCIAL LICENCE

The Group's vision and values embody our commitment to delivering shareholder returns in a responsible and sustainable way, by creating social benefit and being responsible stewards of our environmental resources.

Gem Diamonds is committed to promoting a culture of zero harm and responsible care. Our goal is to create and sustain a safety culture that is underpinned by a deep sense of mutual care and collaboration across the workforce. We are disappointed that some of our safety statistics deteriorated during 2019 after several years of improvement. There was one fatality and seven LTIs during the year, compared to no fatalities and four LTIs in 2018. The Group-wide LTIFR increased to 0.28 (2018: 0.15). The root causes of reported injuries are investigated and addressed and shared across the organisation to improve safety outcomes.

Safeguarding our communities

While the freshwater dam and two tailings storage facilities (TSFs) at Letšeng are designed and managed to international best practice, we are aware of the potential risk that TSFs can pose to host communities, operations and the environment. Rigorous ongoing monitoring of these facilities is conducted by experts to timeously identify and mitigate risks. An early-warning system is in place and community training and awareness programmes have been implemented in downstream communities to improve emergency response readiness in the unlikely event of a failure. More information on how the Group ensures the highest standards of dam safety management is available on the Sustainable Development Reporting Platform at www.gemdiamonds.com .

Supporting local communities and contributing to national priorities

Gem Diamonds recognises PACs as vital stakeholders and views investments in initiatives to support community development and resilience as investments in the long-term sustainability of the Group. Over the years, Gem Diamonds has consistently invested in local communities with an emphasis on education, infrastructure development and local enterprises that create self-sustaining employment independent of the mine.

Community enterprise development initiatives to date include providing infrastructure, training and ongoing support for a vegetable farm, dairy farm, as well as a wool and mohair project. Read more about current initiatives on page 37.

The Letšeng operation provides jobs for more than 1 900 people and is a substantial employer in Lesotho. The Company's investment in training improves individual skills in the area and our local procurement initiatives support the local economy and the broader population of Lesotho. In 2019 total in-country procurement increased to US$164.6 million (2018: US$159.3 million). Of this amount, US$2.4 million was procured directly from PACs (2018: US$2.1 million) and US$30.5 million from regional communities around Letšeng.

For the 10th year running, no major or significant stakeholder incidents occurred at any of Gem Diamonds' operations during 2019. There were also no incidents (2018: none) involving any violation of the rights of the indigenous people on whose land the Group operates.

PREPARING FOR THE FUTURE

The signing of the new mining lease secures Gem Diamonds' mining right at Letšeng for the next two decades (which includes a 10-year exclusive renewal option from 2029). The new lease sees the royalty rate payable increasing from 8% to 10%, the shareholding in the mine remaining unaltered (Gem Diamonds at 70% and Government of Lesotho at 30%) and there is, an increase in the number of work permits that may be granted in order to fill any skills gap at the operation. The BT initiatives that aim to reduce waste stripping (discussed on page 34) that were implemented a year earlier than initially estimated significantly improved LoM stripping ratios and increased the mine's net present value.

Capital expenditure was substantially reduced during the year and comprised mainly sustaining capital projects, investments in technology and innovation projects, and the extension of the Patiseng TSF. The Patiseng extension provides deposition space until 2024.

The diamond detection in kimberlite pilot plant was completed and commissioned on budget during the year. The plant is validating and testing two key technologies to identify locked diamonds within kimberlite and to liberate diamonds using a non-mechanical process to limit diamond damage and lower operating costs.

OUTLOOK

Our focus in the year ahead remains on realising the full benefits of the BT and CI projects and driving efficiencies and cost reduction initiatives to maintain our status as a low-cost and safe operation. We continue to investigate and assess other opportunities to unlock value for shareholders.

The Company announced that it had entered into a binding agreement in July 2019 to sell the Ghaghoo mine, which has been on care and maintenance since 2017. The objective is to conclude this transaction in 2020.

APPRECIATION

I would like to take this opportunity to acknowledge the contribution of Louis Boag, the CFO at the Letšeng mine, who passed away unexpectedly at his home in January 2020. He was an effective and popular part of the management team whose commitment to training and developing those around him, made an immense contribution to the operation. He will be sorely missed.

I would also like to thank Gavin Beevers, who fulfilled the role of interim technical advisor for 9 months before retiring in April. Brandon de Bruin, the Business Transformation Officer, was appointed as the Operations and Business Transformation Executive to oversee the mining operations in the absence of an appointed COO. An Operations Steering Committee was set up to advise and assist Brandon in this role, and Johnny Velloza, the previous deputy CEO and a current Non-Executive Director on the Board was appointed as chairman of this Committee.

I would like to thank the Board and our Chairman for their leadership and support during the year. I am sincerely grateful to our employees for their efforts in delivering on our strategic goals, and for living the Group values.

Thanks to the representatives of the Government of the Kingdom of Lesotho for their constructive engagement and input during the negotiation of the lease period extension.

I would like to close by thanking our shareholders for their ongoing support.

Clifford Elphick

Chief Executive Officer

10 March 2020

GROUP FINANCIAL PERFORMANCE

We aim to maintain our position as a low-cost producer and the effects of the early start of the BT programme leave us in a favourable position in comparison with the rest of the industry.

SUMMARY OF FINANCIAL PERFORMANCE

While 2019 was a year of good operational performance and progress on our BT initiatives and other strategic objectives, revenue and EBITDA(1) declined on weaker diamond prices. Tender revenues tracked the weaker market for rough diamonds and 11 diamonds greater than 100 carats were recovered during the year, compared to 15 in 2018, which included the Lesotho Legend that sold for US$40 million.

The Group has limited ability to influence rough diamond prices, so our focus remains on managing the areas of the business that are within our control. These include improving operational efficiencies, minimising waste mined, investing to sustain our future and reducing costs where possible. The Group also secures appropriate bank facilities to improve funding flexibility.

Underlying EBITDA(1) from continuing operations decreased to US$41.0 million from US$87.7 million. Profit attributable to shareholders from continuing operations for the year was US$7.1 million, equating to earnings per share from continuing operations of 5.1 US cents on a weighted average number of shares in issue of 139.0 million. After including the loss of US$4.5 million from the Ghaghoo discontinued operation, the Group's attributable profit was US$2.6 million with earnings per share of 1.9 US cents.

Net cash(2) in the prior year of US$17.5 million, decreased to a net debt(2) position of US$10.2 million at year end. Notwithstanding the lower revenue, the Group continued to invest into future waste stripping and capital expenditure during the year.

The Group adopted IFRS 16 Leases, that requires a lessee to recognise right-of-use assets and lease obligations for qualifying leases. The Group adopted IFRS 16 using the modified retrospective method of adoption with the date of initial application being 1 January 2019. This resulted in an increase in underlying EBITDA(1) of US$3.0 million due to allocating costs that would have previously been disclosed as cost of sales to a right-of-use asset. The recognition of the right-of-use assets in turn resulted in increased depreciation of US$2.5 million for the year.

Summary of financial performance

Please refer to the full annual financial statements starting on page 104.

 
US$ million                                                   2019  2018(3) 
---------------------------------------------------------  -------  ------- 
Revenue                                                      182.0    267.3 
Royalty and selling costs                                   (16.9)   (22.9) 
Cost of sales(4)                                           (114.7)  (146.7) 
Corporate expenses                                           (9.4)   (10.0) 
---------------------------------------------------------  -------  ------- 
Underlying EBITDA(5) from continuing operations               41.0     87.7 
---------------------------------------------------------  -------  ------- 
Depreciation and mining asset amortisation                  (14.7)    (8.5) 
Share-based payments                                         (0.8)    (1.4) 
Other income                                                   1.1      0.4 
Other expenses                                               (0.3)        - 
Foreign exchange gain                                          3.6      2.2 
Net finance costs                                            (5.8)    (1.7) 
---------------------------------------------------------  -------  ------- 
Profit before tax from continuing operations                  24.1     78.7 
Income tax expense                                           (9.0)   (26.4) 
---------------------------------------------------------  -------  ------- 
Profit for the year from continuing operations                15.1     52.3 
Non-controlling interests                                    (8.0)   (20.6) 
---------------------------------------------------------  -------  ------- 
Attributable profit from continuing operations                 7.1     31.7 
---------------------------------------------------------  -------  ------- 
Loss from discontinued operations                            (4.5)    (5.7) 
---------------------------------------------------------  -------  ------- 
Attributable net profit                                        2.6     26.0 
---------------------------------------------------------  -------  ------- 
Earnings per share from continuing operations (US cents)       5.1     22.9 
---------------------------------------------------------  -------  ------- 
Loss per share from discontinued operations (US cents)       (3.2)    (4.1) 
---------------------------------------------------------  -------  ------- 
 

Revenue

Revenue of US$182.0 million was generated at Letšeng, achieving an average price of US$1 637 per carat(6) (2018: US$2 131 per carat). In the first half of the year, a 13.32 carat pink diamond was recovered that sold for a Letšeng record of US$656 934 per carat and contributed US$8.8 million to revenue. The Group sold 27 diamonds for more than US$1.0 million each, contributing US$68.2 million to revenue.

Mining mix is the ratio of high-value Satellite pipe ore compared to Main pipe ore, and it plays a significant role in revenues realised. Letšeng transitioned into a new cutback during the year and the planned lower contribution of the higher-value Satellite pipe ore reduced price and volume of carats sold. During the latter part of the year, an unforeseen deviation in the contact face further reduced the contributions from the Satellite pipe. This, together with the prolonged weakness in the rough diamond market resulted in the lower revenues generated during 2019.

(1) Refer Note 4, operating profit on page 130, for the definition of non-GAAP measures.

(2) Net cash/(debt) is calculated as cash and short-term deposits less drawn down bank facilities (excluding asset-based finance facility).

(3) Prior year comparatives have been restated due to the recognition of the discontinued operation

(4) Including waste stripping costs amortisation but excluding depreciation and mining asset amortisation.

(5) Underlying EBITDA as defined in note 4 of the notes to the consolidated financial statements.

(6) Includes carats extracted at rough valuation and carry-over inventory.

 
Letšeng 12-month rolling average (US$ per carat) 
-------------------------------------------------------- 
Q4 2018                                            2 131 
Q1 2019                                            1 769 
Q2 2019                                            1 612 
Q3 2019                                            1 507 
Q4 2019                                            1 637 
--------------------------------  ---------------------- 
 
 
US$ million                        2019   2018 
--------------------------------  -----  ----- 
Group revenue summary 
Letšeng sales - rough        182.1  266.6 
Sales - polished margin               -    0.2 
Sales - other                         -    0.4 
Impact of movement in inventory   (0.1)    0.1 
--------------------------------  -----  ----- 
Group revenue                     182.0  267.3 
--------------------------------  -----  ----- 
 

Extracted diamond inventory on hand at the end of the year increased to US$0.9 million (2018: US$0.4 million). This includes US$0.4 million of diamond inventory held over for sale in early 2020.

Expenditure

Operating expenditure

Group cost of sales decreased by 22% to US$114.7 million from US$146.7 million in 2018, mainly due to decreased waste stripping amortisation costs driven by the different ore mining mix and the benefits of the BT initiatives impacting the full 12-month period in the year. Total waste stripping costs amortised were US$43.1 million compared to US$68.2 million in 2018.

Total operating costs in local currency decreased by 14% to Lesotho loti (LSL)1 649.6 million compared to LSL1 928.0 million in 2018, resulting in total operating costs per tonne treated of LSL245.92, which is 17% lower than 2018 of LSL295.14 per tonne treated.

UNIT COST PER TONNE TREATED

 
                                                                                  Non-cash accounting 
                    Operating costs                    BT costs                        charges(1) 
-----------  ------------------------------  -----------------------------  -------------------------------- 
                                                       Tailings 
                                   Once-off           treatment   Fees and        Total 
                Direct    Plant 3     main-               plant   employee       direct                Total 
                  cash   operator   tenance    Sub-   operating     reward    operation            operating 
              costs(2)      costs     costs   total       costs     scheme   cash costs  Charges        cost 
-----------  ---------  ---------  --------  ------  ----------  ---------  -----------  -------  ---------- 
2019 (LSL)      150.61      20.40         -  171.01        2.01       8.14       181.16    64.76      245.92 
2018 (LSL)      141.54      24.18      2.82  168.54        1.61      12.36       182.51   112.63      295.14 
% change             6       (16)         -       1          25       (34)          (1)     (43)        (17) 
-----------  ---------  ---------  --------  ------  ----------  ---------  -----------  -------  ---------- 
2019 (US$)       10.42       1.41         -   11.83        0.14       0.57        12.54     4.48       17.02 
2018 (US$)       10.68       1.83      0.21   12.72        0.12       0.93        13.77     8.50       22.27 
% change           (2)       (23)         -     (7)          17       (39)          (9)     (47)        (24) 
-----------  ---------  ---------  --------  ------  ----------  ---------  -----------  -------  ---------- 
 

Direct cash cost(2) per tonne is LSL150.61, representing a 6% increase from 2018. Waste cash cost per waste tonne mined increased by 8% to LSL38.62 (2018: LSL35.78). These cash cost increases were driven by local country inflation, increased costs of imported mining accessories and increased hauling distances. The decrease in waste tonnes mined of 7%, of which the largest reduction occurred in Q4 2019, contributed to the increase in waste cash cost per tonne, but resulted in an overall decrease in waste cash costs. The cost savings derived from BT initiatives specifically targeting mining contractor costs and efficiencies within blasting and plant consumables partially offset these increases.

Letšeng pays the third plant operator contractor according to the revenue generated by the sales from diamonds recovered through the contractor plant. In 2019, the cash costs per tonne treated in local currency decreased by 16% in line with the reduction in revenue generated from these activities.

Operating costs of the tailings treatment plant, consultancy fees and a provision for an employee reward plan related to the successful delivery of the BT initiatives decreased to LSL10.15 per tonne treated (2018: LSL13.97) as the consultancy agreement and employee rewards scheme concluded during the year.

Non-cash accounting charges per tonne treated decreased mainly due to the lower waste amortisation costs associated with the lower contributions of Satellite pipe material as mentioned above. In addition, the implementation of IFRS 16 Leases in the current year, reduced the operating costs by LSL6.17 per tonne treated due to these costs being re--allocated to lease liabilities in the statement of financial position.

(1) Non-cash accounting charges include waste stripping cost amortised, inventory and ore stockpile adjustments, and the impact of adopting IFRS 16 Leases, and excludes depreciation and mining asset amortisation.

(2) Direct cash costs represent all operating costs, excluding royalty and selling costs.

Exchange rate influences

The Group's revenue is generated in US dollar and most operational expenses are incurred in the local currencies of the operational jurisdictions. The average Lesotho loti (LSL), which is pegged to the South African rand, and Botswana pula (BWP) weakened 9% and 5% respectively against the US dollar during the year, which reduced underlying US dollar reported costs.

 
Exchange rates            2019   2018  % change 
-----------------------  -----  -----  -------- 
LSL per US$1.00 
Average exchange rate    14.45  13.25         9 
Year end exchange rate   13.98  14.39       (3) 
-----------------------  -----  -----  -------- 
BWP per US$1.00 
Average exchange rate    10.76  10.20         5 
Year end exchange rate   10.58  10.73       (1) 
-----------------------  -----  -----  -------- 
GBP per US$1.00 
Average exchange rate     1.28   1.34       (4) 
Year end exchange rate    1.32   1.27         4 
-----------------------  -----  -----  -------- 
 

Royalties and marketing costs

Royalties are paid to the Government of the Kingdom of Lesotho on the value of rough diamonds sold by Letšeng in terms of the operation's mining lease. The royalty rate increased from 8% to 10% with the renewal of the lease, and the increased rate was applicable from October 2019. The Group's sales and marketing operation in Belgium incurs costs relating to diamond selling and marketing-related expenses. During the year, royalties and selling costs decreased by 26% to US$16.9 million (2018: US$22.9 million) in line with the reduction in sales.

Diamond manufacturing operation

During the year no diamonds were extracted for manufacturing and no polished diamonds were sold.

Corporate expenses

These central costs are incurred to provide expertise in all areas of the business model to realise maximum value from the Group's assets. These costs are incurred by the Group through its technical and administrative offices in South Africa (in South African rand) and head office in the UK (in British pound).

Reducing corporate expenses is one of the focus areas for the BT programme without the risk of compromising the Group, and baseline costs decreased to US$7.7 million in 2019 (2018: US$9.3 million). This includes an equity-settled bonus provision of US$1.5 million which was recognised during the year. Project-related costs amounted to US$1.7 million (2018: US$0.7 million), resulting in total corporate costs of US$9.4 million (2018: US$10.0 million).

 
Historical corporate costs data (US$ million) 
Year            Baseline costs       Project costs 
2014                      12.4                   - 
2015                      11.6                 0.1 
2016                      10.5                 0.5 
2017                       9.0                 0.2 
2018                       9.3                 0.7 
2019                       7.7                 1.7 
-------  ---------------------  ------------------ 
 

Underlying EBITDA(1) and attributable profit

Group underlying EBITDA(1) from continuing operations decreased to 53% to US$41.0 million (2018: US$87.7 million) as a result of the decrease in revenue. Profit attributable to shareholders was US$7.1 million, which translates to 5.1 US cents per share based on a weighted average number of shares in issue of 139.0 million.

The Group's effective tax rate was 37.5%. Most of the Group's taxes are incurred in Lesotho, which has a corporate tax rate of 25.0%. The effective tax rate is above the Lesotho corporate tax rate as a result of deferred tax assets not recognised on losses incurred in non-trading operations, partially offset by a reduction in the deferred tax liability on unremitted earnings.

During the year the Group paid US$18.8 million in taxes, predominately at Letšeng. This included a payment of US$9.1m by Letšeng relating to the profits generated in 2018 which together with the provisional payments made during 2019, resulted in an estimated tax receivable of US$8.2 million.

In December 2019, an amended tax assessment was issued to Letšeng by the Lesotho Revenue Authority (LRA), contradicting the application of certain tax treatments in the current Income Tax Act. An Objection has been lodged by Letšeng, and based on senior counsel's advice, which is legally privileged, is expected to have good prospects of success. (Refer Note 25, for further detail).

(1) Refer Note 4, operating profit on page 130, for the definition of non-GAAP measures.

Statement of financial position - selected indicators

 
US$ million                                              2019      2018 
---------------------------------------------------  --------  -------- 
Property, plant and equipment                         323 853   289 640 
Receivables and other assets                            6 337     5 433 
Inventory                                              32 517    33 084 
Cash and short-term deposits                           11 303    50 812 
Assets held for sale                                    3 943       859 
Non-current: interest-bearing loans and borrowings    (6 009)  (19 954) 
Current: Interest-bearing loans and borrowings       (16 332)  (14 212) 
Liabilities associated with assets held for sale      (4 221)         - 
Deferred tax                                         (83 124)  (74 054) 
Provisions                                           (15 588)  (17 876) 
Income tax receivable/(payable)                         8 176   (8 964) 
---------------------------------------------------  --------  -------- 
 

Capital expenditure

The Group focused on prioritising spend within the cash constraints experienced, and all capital projects during 2019 were funded out of internally generated cash flows.

Capital expenditure (excluding waste stripping) was reduced during the year, with US$9.7 million spent (2018: US$23.0 million) mainly on the completion of the 'detecting diamonds within kimberlite' pilot plant (US$1.1 million), extension of the footprint of the Patiseng TSF (US$1.5 million), replacement of the jaw crusher of the primary crushing area (PCA) (US$0.7 million) and on reserve and resource studies ahead of releasing an updated reserve and resource statement (US$1.5 million).

Cash at hand

The Group generated cash from operating activities (before capital and waste investment of US$82.8 million) of US$55.5 million.

Group cash on hand at 31 December 2019 was US$11.4 million (2018: US$50.8 million) of which US$9.2 million is attributable to Gem Diamonds and US$0.1 million is restricted. Significant tax payments totalling US$18.8 million were made mainly relating to the high profits generated by Letšeng in 2018. All scheduled debt repayments were made, consuming a further US$14.1 million.

The overall result is a decrease in cash of US$39.4 million year on year.

 
Cash movement (US$ million) 
------------------------------------------------------- 
Cash - 31 December 2018                              51 
Facilities - 31 December 2018                        58 
Letšeng - cash generated                        94 
Proceeds on disposal of assets                        2 
Letšeng waste - costs capitalised             (73) 
Tax paid                                           (19) 
Net financial liabilities repaid (incl. IFRS 16)   (14) 
Investment in PPE                                  (10) 
Corporate costs                                     (8) 
Net finance costs                                   (5) 
Investment - Ghaghoo                                (4) 
Working capital                                     (3) 
-------------------------------------------------  ---- 
Cash - 31 December 2019                              11 
Facilities 31 December 2019                          70 
-------------------------------------------------  ---- 
 

Loans and borrowings

At year end, the Group had undrawn facilities of US$69.9 million available, comprising US$27.0 million (after US$2.0 million draw down) at Gem Diamonds and US$42.9 million at Letšeng.

In December 2019, the Company accessed US$2.0 million of its three-year RCF. In addition repayments of US$10.0 million on the Gem Diamonds Limited facility, relating to the Ghaghoo US$25.0 million debt were made. The remaining balance of US$10.0 million will be repaid in quarterly instalments, and the final repayment is due on 31 December 2020. Similarly, repayments of LSL57.3 million (US$4.0 million) were made on the project debt facility for the construction of the mining complex at Letšeng. The outstanding balance of LSL133.7 million (US$9.6 million) will be repaid by September 2022.

Available facilities were further increased, when Letšeng concluded a 12-month overdraft facility of LSL100.0 million (US$7.2 million) with Nedbank Corporate and Investment Banking division, to facilitate with working capital requirements. This facility expires in December 2020 and bears interest at South African prime rate less 0.7%.

Summary of loan facilities as at 31 December 2019

 
                                                                                        Amount   Drawn down    Available 
Company        Term/ description       Lender        Expiry      Interest rate(1)  US$ million  US$ million  US$ million 
-------------  ----------------------  ------------  ----------  ----------------  -----------  -----------  ----------- 
Existing facilities 
                                                                 London US$ 
                                                                  three-month 
                                                                  London 
                                                                  Interbank 
Gem Diamonds   Three-and-a-half-year                 December     Offered Rate 
 Limited(2)     RCF                    Nedbank        2020        (LIBOR) + 4.5%          29.0          2.0         27.0 
               ----------------------  ------------  ----------  ----------------  -----------  -----------  ----------- 
 Three-and-a-half-year 
  term facility 
  (Ghaghoo US$25 
  million)               Nedbank       December 2020                                      25.0         10.0            - 
 ----------------------  ------------  ----------------------------  ------------  -----------  -----------  ----------- 
                                       Standard 
                                        Lesotho 
                                        Bank and 
Letšeng                            Nedbank                  Lesotho prime 
 Diamonds      Three-year RCF           Lesotho      July 2021    rate minus 1.5%         35.7            -         35.7 
-------------  ----------------------  ------------  ----------  ----------------  -----------  -----------  ----------- 
                                                                 Tranche 1 (R180 
                                                                  million) South 
                                       Nedbank/                   African 
                                        Export                    Johannesburg 
                                        Credit                    Interbank 
Letšeng   5.5-year project         Insurance                 Average Rate 
 Diamonds       facility                Corporation  March 2022   (JIBAR) + 3.15%         12.9          7.7            - 
                                       ------------  ----------  ----------------  -----------  -----------  ----------- 
   September 
    2022       Tranche 2 (LSL35 million) South African JIBAR + 6.75%                       2.5          1.9            - 
   ----------  ------------------------------------------------------------------  -----------  -----------  ----------- 
New facilities 
                                                                 South African 
Letšeng                                         December     prime rate 
 Diamonds      12-month overdraft      Nedbank        2020        minus 0.7%               7.2            -          7.2 
-------------  ----------------------  ------------  ----------  ----------------  -----------  -----------  ----------- 
Total                                                                                                  21.6         69.9 
---------------------------------------------------------------------------------  -----------  -----------  ----------- 
 

(1) At 31 December 2019 LIBOR was 1.94% and JIBAR was 6.8%.

(2) Refer Note 18, of the Annual Financial Statements for the reconciliation of the US$45 million facility.

Discontinued operation (Ghaghoo operation on care and maintenance)

In line with the strategic objective to dispose of non-core assets, Gem Diamonds entered into a binding agreement with Pro Civil Proprietary Limited (Pro Civil) for the sale of 100% of the share capital of Gem Diamonds Botswana Proprietary Limited in June 2019, which owns the Ghaghoo Diamond Mine, for US$5.4 million. The sale is still subject to regulatory approvals in Botswana and other conditions.

The operation was classified as a discontinued operation in accordance with IFRS 5 Non-current Assets Held for Sale and Discontinued Operations. Care and maintenance costs of US$4.5 million have been recognised and disclosed separately in the statement of profit or loss for the year and disclosed separately in the statement of financial position at the lower of carrying value and fair value less costs to sell.

Share-based payment

The share-based payment charge for the year was US$0.8 million (2018: US$1.4 million). On 20 March 2019, 1 303 000 zero-cost options were granted to certain key employees and Executive Directors under the Company's long-term incentive plan (LTIP). Vesting of these options is subject to the satisfaction of certain market and non-market performance conditions over a three-year period, in line with previous awards within the LTIP.

DIVID

Letšeng paid no dividends during 2019. Based on the Group's 2019 financial performance and position, the Board will not recommend a dividend distribution for 2020.

SENSITIVITIES

In the conduct of its business, the Group is exposed to a range of external factors that are outside of its control. The Group has the necessary resilience, balance sheet strength and access to funds to adjust for shifts in these factors. The graph below illustrates the sensitivity of 2019's EBITDA(1) to various factors that have the most significant impact on our ability to create value.

 
Sensitivity (US$ million) impact of 1% change on EBITDA 
---------------------------------------------------------- 
Royalties rate change (absolute)                       1.8 
Average selling price or rough diamonds sold           1.6 
Operating cost per tonne - direct cash cost(2)         1.1 
Exchange differences                                   1.1 
Diesel price or volume                                 0.2 
Corporate expenses                                     0.1 
-----------------------------------------------------  --- 
 

(1) Refer Note 4, operating profit on page 130, for definition of non-GAAP measures.

(2) Direct mine costs represent all operating costs, excluding royalty and selling costs.

OUTLOOK

Our focus in the year ahead remains on mining in line with the revised mine plan to drive down Letšeng's waste stripping costs and increase Satellite pipe contribution, which will further improve the net present value of the operation. Continued focus on optimising the operations, delivering on the targets of the BT programme and embedding continuous improvement will improve free cash flow, enable repayment of financial debts as they fall due and complete capital projects on time.

The outbreak of Covid-19 (coronavirus) impacting trading and financial markets could potentially have an impact on upcoming tenders and availability of imported goods. Current focus will include monitoring and mitigating risks associated to this in line with the risk management framework.

Michael Michael

Chief Financial Officer

10 March 2020

BUSINESS TRANSFORMATION

On track to deliver US$100 million by 2021

The Group successfully concluded the implementation of the Business Transformation (BT) programme which is on track to deliver the planned US$100 million in revenue, productivity and cost saving (against the 2017 base) by 2021. 325 initiatives were identified at the start of the project that create a step change in efficiency, productivity and cost management, and position Gem Diamonds favourably in its peer group. Having started this programme in 2017, it supported Gem Diamonds' resilience through prolonged constrained economic conditions the industry is experiencing.

The targeted benefits are stated net of implementation costs, consultant fees and an employee incentive plan which related to the successful delivery of initiatives contributing to the overall target. The target includes US$7.1 million related to once-off savings and US$92.9 million in cumulative recurring annualised benefits over the four-year period.

Work streams of the BT programme include:

   --      Mining 
   --      Processing 
   --      Working capital and overheads 
   --      Corporate activities 

OVERVIEW OF PROGRESS

To date, most focus areas have delivered more than the planned benefits with US$54.9 million of the implemented initiatives cash flowed by 31 December 2019 (2018: US$20.7 million). The focus for achieving the remaining balance will be on maintaining strict contract mining costs, realising efficiencies in plant uptime and additional throughput opportunities, and continued slope monitoring and waste minimisation.

 
                Total annual benefit  Total cumulative benefit 
Year                  (US$ millions)            (US$ millions) 
--------------  --------------------  ------------------------ 
2017A                              1                         1 
2018A                             20                        21 
2019A                             34                        55 
2020E                             22                        77 
2021E                             23                       100 
2022E onwards                     30                         - 
--------------  --------------------  ------------------------ 
 

Many initiatives identified during the BT process resulted in efficiencies in natural resource use, thereby, mitigating the operational impact on the natural environment. This aligns with our Group strategy of maximising benefit for our communities and minimising our impact on the environment. More information on energy reduction initiatives and greenhouse gas emissions is available in the Sustainable Development Reporting Platform at www.gemdiamonds.com .

 
Mining (US$ million) 
                     Drill, load and haul  Pit design  Blasting practices 
-------------------  --------------------  ----------  ------------------ 
Target                                 25          13                   8 
Delivered to date                      13           5                   4 
Remaining delivery                     12           8                   4 
-------------------  --------------------  ----------  ------------------ 
 

Sustainable benefits in the mining workstream will depend on the annual contract rate negotiations with blast, drill, load and haul contractors.

Steepening of the inter-ramp slope angles in January 2019 was completed a year ahead of schedule. In the current year waste mined reduced by 5.8 million tonnes compared to the previous pit design. Sustained benefit is dependent on continued berm retention and steeper slope angle sustainability. Initial indications are that opportunities exist to further steepen slope angles in the pits.

Optimising blasting patterns and practices, accessories and explosive mix, leading to a reduction in blasting consumables and together with early settlement discounts secured with explosives suppliers, were the key to the success of the blasting initiative.

 
Working capital and overheads (US$ million) 
                      Working capital  Overheads 
--------------------  ---------------  --------- 
Target                              1          5 
Delivered to date                   1          2 
Remaining delivery                  0          3 
--------------------  ---------------  --------- 
 

Overhead costs at Letšeng were reduced by implementing a systematic approach of contract review and assessment to identify excess footprint and then renegotiate contracts based on a right-sized business. Once-off sale of scrap material also contributed to the benefit.

 
Processing (US$ million) 
                     Plant uptime  Additional throughput  Plant consumables 
-------------------  ------------  ---------------------  ----------------- 
Target                          7                     26                  2 
Delivered to date               3                     21                  1 
Remaining delivery              4                      5                  1 
-------------------  ------------  ---------------------  ----------------- 
 
 

Through the implementation of 76 initiatives since commencement of BT, the improvement in plant uptime and stability continues to contribute to the overall target. To further improve plant uptime, various incremental improvement projects, requiring capital investment, are being considered.

The re-treatment of tailings material through the XRT machine recovered 5 420 carats in 2019, and to date has contributed considerably to the additional throughput initiatives. As the material earmarked to be processed through the retreatment plant to the end of 2021 is of a lower grade, the forecast benefit has been set at a lower value.

 
Corporate activities (US$ million) 
                     Non-core assets  Corporate expenses 
-------------------  ---------------  ------------------ 
Target                             8                   5 
Delivered to date                  3                   2 
Remaining delivery                 5                   3 
-------------------  ---------------  ------------------ 
 

Assets associated with Ghaghoo, specifically the aircraft servicing the mine, certain non-core mining fleet and inventory have been sold.

The continued costs incurred in care and maintenance at Ghaghoo while awaiting the preconditions of the sale agreement to be satisfied, resulted in some of the benefit from the disposal of non-core assets lagging behind its target.

As explained in the group financial performance on page 29, corporate expenses relating to the corporate office were well contained during the year, reducing baseline corporate costs to US$7.7 million from US$9.3 million in 2018.

2020 FOCUS

The transition from BT to continuous improvement (CI) throughout the Group is in progress, with the main focus at Letšeng. CI focuses on behavioural strategies and the implementation of meaningful KPIs for effective visual management at all levels. The CI methodology, supported by software training, enables companies to continuously improve efficiencies by unlocking the inherent capabilities of employees at all levels to implement CI best practices, build effective teams and drive incremental improvements. The additional financial benefit associated with incremental improvements related to the CI process is being assessed, and any value attributed to CI will be in addition to the current US$100 million BT target.

LET ENG

HIGHLIGHTS

-- Mining lease renewed for a period of 10 years from October 2019 with an exclusive right granted to renew for a further period of 10 years to 2039

-- Recovered and sold a 13.32 carat pink diamond for US$8.8 million, achieving a Letšeng record price of US$656 934 per carat

-- Recovered 11 diamonds greater than 100 carats and sold 27 diamonds for over US$1.0 million each

-- Total greater than 100 carat diamond recoveries reached 100 since Gem Diamonds took ownership of Letšeng in July 2006

   --      Implemented inter-ramp pit slope steepening, resulting in lower LoM stripping ratios 
   --      Average price of US$1 637 per carat achieved in challenging market conditions 
   --      Realising the benefits and savings of BT initiatives 
   --      Additional diamonds recovered through the re-treatment of tailings material 
   --      Improved fleet maintenance times 
   --      Lowest AIFR in 10 years 
   --      Third year ISO 14001 and 45001 certification 

CHALLENGES

   --      One fatality and seven lost time injuries (LTIs) 

-- A deviation was discovered in the anticipated contact face position that reduced the expected contribution from Satellite pipe in H2 2019

   --      Technical challenges in implementing the diamond detection pilot plant 

OUR UNIQUE VALUE PROPOSITION

Letšeng is famous for its large top-quality diamonds. It has the highest proportion of large, high-value diamonds, making it the highest average dollar per carat kimberlite diamond mine in the world. Operating costs per tonne are among the lowest in the world.

KEY PROJECTS 2019

-- The extension of the footprint of the Patiseng TSF, which provides deposition space until 2024

   --      Successful replacement of the jaw crusher and refurbishment of the PCA 
   --      Implementation of fleet management system 

-- Commenced construction of centralised security servers and control rooms to improve maintenance and security

   --      Kick-off of CI (see pages 40 to 43) 

FUTURE FOCUS AREAS

-- Ensure the sustainability of BT initiatives implemented and transitioning of BT into continuous improvement (CI) (see pages 40 to 43)

   --      Commence feasibility study to replace and upgrade the PCA facilities 
   --      Investigate further options to reduce waste mining 

-- Reduce diamond damage through changing blasting patterns and changing front-end plant configuration

   --      Progress studies relating to the updating of the Resource and Reserve Statement 

KPIs

 
KPI                                     Unit       2019       2018  % change 
------------------------  ------------------  ---------  ---------  -------- 
Fatalities                            Number          1          0       n/a 
LTIFR                      200 000 man hours       0.28       0.15       n/a 
Ore mined                             tonnes  6 297 805  6 139 077         3 
Ore treated                           tonnes  6 707 791  6 532 596         3 
Carats recovered(1)                   carats    113 974    126 875      (10) 
Carats sold                           carats    111 292    125 111      (11) 
Average price per carat            US$/carat      1 637      2 131      (23) 
------------------------  ------------------  ---------  ---------  -------- 
 

(1) Includes carats produced from the Letšeng plants, the Alluvial Ventures (AV) plant and the tailings treatment plant.

Enhancing value over volume

PERFORMANCE

Safety

Letšeng's safety ethos aims to build on the culture of behaviour-based care at work and to strive for zero harm. In February 2019, Mr Abele Mtambo, an operator of a sub-contractor's vehicle, was involved in a vehicle accident and sadly passed away in hospital a short while later. The Group conducted a detailed investigation and implemented additional targeted health and safety management initiatives to improve the safety performance on the mine. Seven LTIs were recorded at Letšeng during 2019 (2018: four), the LTIFR increased to 0.28 (2018: 0.15) and the AIFR improved to 0.97 (2018: 1.48). Although there was an increase in LTIs during 2019, there has been an overall decrease in all injuries. Letšeng is focusing on implementing a strategy to reduce LTIs, and to ensure behaviour-based care is integrated at the operation.

Operations

Waste tonnes mined decreased 7% to 24.0 million tonnes from 25.8 million tonnes in 2018. The decrease is mainly due to several BT initiatives to reduce waste mining, particularly the initiative to steepen the inter-ramp slope angles, which reduced tonnes of waste mined during the year by 5.8 million compared to the previous mine plan that did not incorporate steeper slopes. This initiative has significantly reduced LoM stripping ratios while increasing and bringing forward the volume of ore tonnes mined from the higher-value Satellite pipe, increasing the LoM net present value.

Ore tonnes treated during 2019 of 6.7 million tonnes comprise 5.6 million tonnes treated by Letšeng's plants (2018: 5.4 million) and 1.1 million tonnes treated by the third-party processing contractor Alluvial Ventures (AV) (2018: 1.1 million). Of the total ore treated, 4.7 million was sourced from the Main pipe, 1.6 million from the Satellite pipe and 0.4 million from the Main pipe stockpiles. During a 15-day shutdown in the second half of the year to replace the jaw crusher in the PCA and to perform extensive maintenance to this area, the plants were fed from stockpiles with a mobile crusher and the operation was still able to meet its stated targets.

The transition into the new cutback to accommodate the planned increase in contribution from Satellite pipe ore revealed a deviation in the anticipated contact face position, which was last mined in 2014. This transition resulted in limited supply from Satellite pipe ore during this period which, together with the deviation, resulted in a 27% lower contribution of Satellite pipe ore to 1.6 million tonnes (2018: 2.2 million tonnes). The results of the core drilling programme and ahead of face drilling will be used to further improve our understanding of the orebodies to mitigate the risk of deviations in the short term.

The plants continue to focus on enhancing value over volume by ensuring appropriate maintenance planning, well-controlled and consistent feed rates that enhance process stability and increased plant uptime and reliability. Improvements were implemented to the fine dense medium separation circuit to improve the feed rate in Plant 2. While the volume of tonnes treated in the first half of the year were negatively affected for a limited period while implementing these improvements, it subsequently led to an overall improvement in the volume of tonnes treated, especially in the second half of 2019.

Carats recovered from all sources in 2019 decreased 10% to 113 974 (2018: 126 875). The BT initiative to re-treat tailings through the mobile XRT sorting machine yielded 5 420 carats in 2019 (2018: 11 905 carats). Overall grade for 2019 was 1.70cpht, a decrease of 12% on the 1.94cpht realised in 2018 due to the higher contribution of Main pipe ore in 2019, which has a lower grade relative to Satellite pipe ore. The grade for the ore processed during the year was in line with its expected reserve grade.

Large diamond recoveries

In 2019 Letšeng recovered 11 diamonds greater than 100 carats and total diamonds recovered greater than 10 carats increased by 2% year on year.

 
                                                   FY average 
Number of large diamond recoveries   2019  2018   2008 - 2018 
-----------------------------------  ----  ----  ------------ 
> 100 carats                           11    15             7 
60 - 100 carats                        20    22            18 
30 - 60 carats                         82    83            74 
20 - 30 carats                        139   137           111 
10 - 20 carats                        472   455           423 
Total diamonds > 10 carats            724   712           633 
-----------------------------------  ----  ----  ------------ 
 

Mineral resources and reserves

Studies related to the updating of Letšeng's Resource and Reserve Statement continued throughout 2019. Progress was made on the identification, delineation and confirmation of geological continuity of the subdomains within each of the historical resource categories. Several of the work components were completed towards the end of 2019, and analysis and interpretation of results will continue into the first half of 2020. This work includes comprehensive petrography, mineral chemistry (Mantle Mapper and chromite microprobe test work) and microdiamond analysis of drill core and grab samples, all of which complement the core logging data and guide the 3D geological modelling process.

In parallel, bulk sampling of the various volumetrically significant subdomains has been ongoing within the plants' production schedule. Considering the low grades of all kimberlites at Letšeng, the bulk samples must be substantial in tonnage for collection of sufficient diamond data to confidently estimate grade and diamond value. Bulk sampling will continue in 2020 until all inputs required for optimisation studies to be undertaken have been gathered and the updated Resource and Reserve Statement can be finalised.

Diamond sales

Rough diamond tender viewings were completed in Antwerp and Tel Aviv during the year. A total of 111 292 carats were sold by Gem Diamonds Marketing Services, a wholly owned Gem Diamonds subsidiary (2018: 125 111) (refer to page 39 for details on the upgraded tender platform). Letšeng generated rough diamond revenue of US$182.1 million, at an average price of US$1 637 per carat (2018: US$2 131) in a challenging market.

Capital projects

The capital project that commenced in November 2017 for the required extension of Letšeng's TSF is ongoing and will provide deposition space until 2024. Other key capital projects included reserve and resource studies ahead of releasing an updated reserve and resource statement, as well as the replacement of the jaw crusher in the PCA. Details of overall costs and capital expenditure incurred at Letšeng during the period are included in the Group financial performance section on pages 28 to 29.

Through the Group's subsidiary GDIS, the integrated pilot plant for the early detection of diamonds within kimberlite, with the aim to reduce diamond damage, was completed and commissioned at Letšeng during the year. Ramp-up and ongoing testing of the technology continues. Refer to the technology and innovation section on page 38 for more information on this plant.

Dam safety and integrity

Tailings dam integrity has come under the spotlight in recent times(1) , with investors becoming increasingly aware of the possible adverse impact these facilities may have on life and the environment.

Letšeng recognises that the potential risk posed by both its TSF and raw water dam necessitates a proactive approach to risk management at every stage of the lifecycle of its facilities. There are three facilities at Letšeng - the Patiseng TSF which is in continual use, the old TSF which is used as a semi-dormant facility, and the mine's freshwater supply resource, the Mothusi Dam. Gem Diamonds voluntarily disclosed all relevant details of these facilities as part of the Investor Mining & Tailings Safety initiative set up by the Church of England that can be found under Gem Diamonds at http://tailing.grida.no/ .

Letšeng reviewed the construction methods, operating procedures and inspections of the old and recently constructed tailings and water dams internally and with independent expert consultants. The Letšeng dams were constructed using the "centre line and downstream tipping" method(2) . Most recent dam failures reported in the mining industry were related to dams built using "upstream" construction methods.

The dams at Letšeng are built and maintained according to sound structural and environmental standards, using international best practice guidelines to inform our approach. Dam safety is a standing agenda item at operational HSSE Sub-Committee meetings, operational Board meetings, Group HSSE Sub-Committee meetings, and Group Board meetings where findings from the stringent safety monitoring processes are discussed and regularly reviewed.

Stringent safety checks and inspections are conducted daily, weekly and monthly. Independent professional engineers perform audits routinely every quarter, or more often as required. Risks identified are mitigated and any required remedial steps are implemented. Training and awareness programmes regarding the early-warning system have been implemented on site and at local communities. The communication and alarm systems are regularly tested and used to ensure the emergency readiness of response teams and potentially affected communities (PACs).

The emergency procedures and actions in the event of a dam wall failure have also been reviewed and drills involving the mine site and downstream communities are regularly held. For further detail on how the Group ensures the highest standards of dam safety management, refer to the Sustainable Development Reporting Platform and the tailings-related reports and disclosures available on our website www.gemdiamonds.com .

Health, safety, social and environment (HSSE)

Letšeng's occupational health, safety and environmental management systems were independently audited and certified under the International Organization for Standardisation (ISO) 14001 (environmental management) and ISO 45001 (occupational health and safety management) standards.

The protection of the natural environment within which Letšeng operates, is key to the sustainable success of the organisation. The mine continues to mitigate potential impacts on the environment, with water protection and waste management being key focus areas. No significant or major environmental incidents occurred at Letšeng for the 10th year running.

The Group is committed to rehabilitating the natural environment within which it operates at the end of the lifespan of its mines. Rehabilitation requirements are included in the decision-making processes to ensure that current mining activities do not hinder future rehabilitation efforts. The Group, on an annual basis, undertakes a review of its rehabilitation plans to ensure its provision for rehabilitation liability is a true reflection of the investment needed for the eventual restoration of land. The 2019 rehabilitation provision for Letšeng amounted to US$15.6 million (2018: US$14.5 million). The Group leased 6 174ha (2018: 6 174ha) of land during 2019 and approximately 28ha was disturbed during the year (2018: 159ha) as a result of mining activities. This brings the total disturbed land leased by the Group to 764ha (2018: 736ha).

(1) Mining Weekly, December 2019, page 26.

(2) A discussion of the construction and applicability of the various types of tailings facilities is available on the International Council of Mining and Metals website at www.icmm.com/en-gb/environment/tailings .

ENGAGING OUR COMMUNITIES

S172 (1)(d)

Letšeng is committed to working closely and in collaboration with its stakeholders. The operation's PACs play a vital role in the success of the operation and Letšeng is committed to ensuring that PACs benefit from the operation. The mine invested US$0.8 million in community projects during 2019 (2018: US$0.8 million) which focuses on infrastructure, education and small and medium enterprise development in these communities. Projects are selected to address the most pressing community concerns identified through ongoing community engagement informed by our operation-specific social and environmental impact assessments (SEIA) and community needs analyses.

The SEIAs and community needs analyses are informed by extensive public participation, host country legislation and international best practice guidelines such as the World Bank Equator Principles and the International Finance Corporation's Performance Standards on Environmental and Social Performance.

 
Pae-La-ltlhatsoa community footbridge  Following engagement with local community leaders regarding their most pressing 
                                       needs, Letšeng 
                                       constructed a pedestrian footbridge over the Khubelu River to provide safe 
                                       crossing. The footbridge 
                                       helps children to get to school safely and provides access to crucial services 
                                       and local infrastructure. 
                                       The footbridge was completed and officially handed over to the community in May 
                                       2019. 
-------------------------------------  ------------------------------------------------------------------------------- 
Community infrastructure               During 2018, Letšeng started construction of classrooms at the 
                                       Tšepong Primary School 
                                       in the Pae-La-Itlhatsoa community and in 2019 handed over the classrooms along 
                                       with built 
                                       offices for the local community leadership. 
-------------------------------------  ------------------------------------------------------------------------------- 
The Mokhotlong dairy farm project      This project created a dairy business providing locally produced pasteurised 
                                       and packaged 
                                       fresh milk as an alternative to milk imported from South Africa. The project 
                                       has 32 cows with 
                                       a projected output of 450 litres a day. Mentoring, business coaching and 
                                       education in animal 
                                       welfare is provided by the local dairy farmers association. Letšeng will 
                                       continue to 
                                       provide mentorship and training as required to ensure the ongoing viability and 
                                       positive contribution 
                                       of the project. 
-------------------------------------  ------------------------------------------------------------------------------- 
The Lesotho Legend Project             To mark the recovery of the 910 carat Lesotho Legend in 2018, the project is 
                                       investigating 
                                       the optimum operating model to establish a commercial egg farming co-operative. 
                                       This project 
                                       has the potential to create viable socio-economic growth in the future, meeting 
                                       community 
                                       needs and contributing meaningfully to local economic development. 
-------------------------------------  ------------------------------------------------------------------------------- 
Educational support                    Letšeng invests in local skills development by providing scholarships to 
                                       local students, 
                                       thereby improving localisation of the mine's workforce. The programme has 
                                       supported 43 students 
                                       over 13 years. 
-------------------------------------  ------------------------------------------------------------------------------- 
 

"I am very proud of Letšeng mine. Of all mines in this country, Letšeng is the only one that sticks to the promises and commitments it made to the public. I so wish other mines could learn from Letšeng that it is a great thing to work well with the communities. I am happy for the chief for the new office building. As a country ruled by chiefs, what Letšeng has done is a great sign of respect. I am also happy for the school children because even during rainy season, they won't have an excuse not to show up at school. As one of my favourite partners in this industry, I am proud that you keep your promise to this nation...they truly are part of this community"

The former Minister of Mines of Lesotho, Keketso Sello, at the official handover of the footbridge and chief's office at Pae-La-Itlhatsoa on 22 May 2019.

TECHNOLOGY AND INNOVATION

HIGHLIGHTS

   --      Construction of pilot plant at Letšeng completed 
   --      Launch of the enhanced electronic tender platform 

CHALLENGES

-- Proving early detection of diamonds within kimberlite and anti-breakage technology under challenging operating conditions

KEY PROJECTS 2019

   --      Completion and commissioning of the pilot plant at Letšeng 
   --      Developing and implementing of the enhanced electronic tender platform 

OUR UNIQUE VALUE PROPOSITION

-- Gem Diamonds regards technology and innovation as a critical means of improving operational performance and unlocking value. The Group continues to monitor new developments to identify ways of supporting long-term value creation.

FUTURE FOCUS AREAS

   --      Continue the ramp-up and testing of the pilot plant 
   --      Introduction of blockchain technology linking end users to the source of their diamond 

PERFORMANCE

Advances in technology are creating significant opportunities to unlock value across the diamond value chain. These include technologies that can increase the effectiveness and efficiency of diamond mining and processing, ones that reduce friction in selling and marketing rough diamonds, and others that help consumers to understand the unique journey of their finished diamond, where it came from and how it got to them.

Reducing diamond damage

The Letšeng mine has a unique diamond distribution within its orebody. A significant portion of its revenue is held in the larger high-value diamonds. Larger high-value Type II diamonds are more susceptible to damage in mining and processing. Therefore, reducing diamond damage is a key aspect of Gem Diamonds' strategy that can significantly enhance revenue.

Opportunities to reduce diamond damage that show the most potential include:

   --      early identification of diamonds within kimberlite; and 
   --      non-mechanical means of liberating these diamonds within kimberlite. 

Gem Diamonds has made significant progress on the identification, validation and testing of technologies from various industries to complement its innovation drive of early detection and non-mechanical means of liberating diamonds.

Following the successful proof of concept, the Group's wholly owned subsidiary, Gem Diamonds Innovation Solutions, constructed a pilot plant at Letšeng to test the technology under operating conditions. The pilot plant uses scanning technology in conjunction with proprietary imaging and sorting algorithms to detect diamonds within kimberlite, combined with high-voltage pulse power for non-mechanical fragmentation of composite materials to liberate the encapsulated diamonds. The plant was completed and commissioned during 2019 and ramp-up and ongoing testing of the efficiency of the technology continues. Once proven, the next step would be to scale up the project, targeting 1 000 tonnes per hour of material, 150mm in size. The scalability of the project will be dependent on capital requirements.

Gem Diamonds electronic tender platform

During 2019, Gem Diamonds Marketing Services implemented a new customised electronic tender platform that went live for the September tender. The new platform is more robust and has an improved user-friendly client interface, automated just-in-time communication with clients, automatic invoicing, upgraded security and access controls and an interactive integrated know your client database. The platform provides an enhanced experience for clients and significantly increases internal efficiencies in the sales and marketing function.

Providing clarity for customers

With consumers increasingly considering social and environmental factors in their purchasing decisions, technologies that can prove authenticity, provenance and traceability of diamonds support ethical sourcing and processing in the diamond value chain. This is particularly relevant with younger consumers where these considerations are even more likely to influence buying patterns. Technologies such as blockchain represent a secure means of linking the source of rough diamonds with the final cut and polished diamonds. Solutions are available that provide consumers with information about the mine and country of origin of their diamonds, as well as the positive impact that the mine and the broader industry have on the communities and countries in which they operate. These technologies support the sales and marketing of diamonds from environmentally and socially responsible mining companies like Gem Diamonds.

RESPONSIBILITY STATEMENT OF THE DIRECTORS IN RESPECT OF THE ANNUAL REPORT AND FINANCIAL STATEMENTS

The Directors are responsible for preparing the Annual Report and the Group financial statements in accordance with International Financial Reporting Standards (IFRS). Having taken advice from the Audit Committee, the Board considers the report and accounts taken as a whole, are fair, balanced and understandable and that they provide the information necessary for shareholders to assess the Company's performance, business model and strategy.

The Strategic Report and Directors' Report include a fair review of the development and performance of the business and the position of the Company and the undertakings included in the consolidation taken as a whole, together with a description of the principal risks and uncertainties that they face.

PREPARATION OF THE FINANCIAL STATEMENTS

The Directors must not approve the financial statements unless they are satisfied that they give a true and fair view of the state of affairs of the Group, and of their profit or loss for that period. In preparing the Group financial statements, the Directors are required to:

   --      select suitable accounting policies and then apply them consistently; 
   --      make judgements and estimates that are reasonable and prudent; 
   --      state whether they have been prepared in accordance with IFRS; 

-- state whether applicable IFRS have been followed, subject to any material departures disclosed and explained in the Group financial statements; and

-- prepare the financial statements on the going concern basis unless it is inappropriate to presume that the Group will continue in business.

The Directors are responsible for keeping adequate accounting records that are sufficient to show and explain the Group's transactions and disclose, with reasonable accuracy at any time, the financial position of the Group. They are also responsible for safeguarding the assets of the Group and hence for taking reasonable steps for the prevention and detection of fraud and other irregularities.

The Directors confirm that the financial statements, prepared in accordance with IFRS, give a true and fair view of the assets, liabilities, financial position and profit or loss of the Group and the undertakings included in the consolidation taken as a whole. In addition, suitable accounting policies have been selected and applied consistently.

Information, including accounting policies, has been presented in a manner that provides relevant, reliable, comparable and understandable information, and additional disclosures have been provided when compliance with the specific requirements in IFRS have been insufficient to enable users to understand the financial impact of particular transactions, other events and conditions on the Group's financial position and financial performance. Where necessary, the Directors have made judgements and estimates that are reasonable.

The Directors of the Company have elected to comply with the Companies Act, 2006, in particular the requirements of Schedule 8 to The Large and Medium-sized Companies and Groups (Accounts and Reports) Regulations 2013 of the United Kingdom pertaining to Directors' remuneration which would otherwise only apply to companies incorporated in the UK.

Michael Michael

Chief Financial Officer

10 March 2020

INDEPENT AUDITOR'S REPORT

To the Shareholders of Gem Diamonds Limited

Report on the Audit of the Consolidated Financial Statements

Opinion

We have audited the consolidated financial statements of Gem Diamonds Limited and its subsidiaries (the Group) set out on pages 104 to 160, which comprise the consolidated statement of financial position as at 31 December 2019, the consolidated statement of profit or loss, the consolidated statement of other comprehensive income, the consolidated statement of changes in equity and the consolidated statement of cash flows for the year then ended, and notes to the consolidated financial statements, including a summary of significant accounting policies.

In our opinion, the consolidated financial statements present fairly, in all material respects, the consolidated financial position of the Group as at 31 December 2019, and its consolidated financial performance and consolidated cash flows for the year then ended in accordance with International Financial Reporting Standards.

Basis for opinion

We conducted our audit in accordance with International Standards on Auditing (ISAs). Our responsibilities under those standards are further described in the Auditor's Responsibilities for the Audit of the consolidated financial statements section of our report. We are independent of the Group in accordance with the sections 290 and 291 of the Independent Regulatory Board for Auditors' Code of Professional Conduct for Registered Auditors (Revised January 2018), parts 1 and 3 of the Independent Regulatory Board for Auditors' Code of Professional Conduct for Registered Auditors (Revised November 2018) (together the IRBA Codes) and other independence requirements applicable to performing audits of financial statements of the Group and in South Africa. We have fulfilled our other ethical responsibilities, as applicable, in accordance with the IRBA Codes and in accordance with other ethical requirements applicable to performing audits of the Group and in South Africa. The IRBA Codes are consistent with the corresponding sections of the International Ethics Standards Board for Accountants' Code of Ethics for Professional Accountants (IESBA code) and the International Ethics Standards Board for Accountants' International Code of Ethics for Professional Accountants (including International Independence Standards) respectively. We believe that the audit evidence we have obtained is sufficient and appropriate to provide a basis for our opinion.

Key audit matters

Key audit matters are those matters that, in our professional judgement, were of most significance in our audit of the consolidated financial statements of the current period. These matters were addressed in the context of our audit of the consolidated financial statements as a whole, and in forming our opinion thereon, and we do not provide a separate opinion on these matters. For each matter below, our description of how our audit addressed the matter is provided in that context.

We have fulfilled the responsibilities described in the Auditor's Responsibilities for the Audit of the consolidated financial statements section of our report, including in relation to these matters. Accordingly, our audit included the performance of procedures designed to respond to our assessment of the risks of material misstatement of the consolidated financial statements. The results of our audit procedures, including the procedures performed to address the matters below, provide the basis for our audit opinion on the accompanying consolidated financial statements.

 
Key audit matter (KAM)                                       How the matter was addressed in the audit 
Taxation - Uncertainty over income tax treatments on an           Our audit procedures included amongst others the following: 
amended tax assessment received by                                 *    We evaluated management's Group tax risk register and 
Letšeng Diamonds Proprietary Limited.                              their determination and assessment of uncertain tax 
                                                                        positions and tax contingencies and the application 
In December 2019, an amended tax assessment was issued to               of IFRIC 23, Uncertainty over income tax treatments. 
Letšeng Diamonds (Pty) Ltd                                         Specifically, we inspected management's documentation 
by the Lesotho Revenue Authority ('LRA') as noted in the                of their assessment of "probable or not" relating to 
consolidated financial statements                                       the amended assessment raised by the LRA; 
in Note 1.2.1. and Note 1.2.28 respectively. 
The matter identified had to be evaluated to determine 
whether the tax treatment/position                                 *    We engaged, as part of our team, tax specialists to 
accounted for is appropriate. Management involved external              assist us with our audit procedures, specifically 
senior legal counsel to assess                                          relating to the amended assessment received from the 
the uncertainty to appropriately corroborate the Group                  LRA. Our experts on the audit team inspected and 
position taken.                                                         assessed the following documents: 
The significant judgement involved in the process on the 
LRA matter, relates to: 
 *    Ambiguity in the application of the Lesotho Income           *    The amended assessment received from the LRA. 
      Tax Act and related guidelines (such as ordinances, 
      circulars and letters) and their interpretations; 
                                                                   *    For the key matters raised by the LRA, the references 
                                                                        to the legislation by the LRA, the method of 
 *    Income tax practices that are generally applied by                resolution suggested by the LRA, and the salient 
      the taxation authorities and tax payers in specific               dates relevant to the matter; 
      jurisdictions and situations; and 
 
                                                                   *    Objections and other correspondence with the LRA, to 
 *    Tax memoranda/opinions prepared by qualified in-house             determine the reasonableness of management's response 
      or external tax advisor.                                    , 
                                                                        relative to the tax legislation, other supporting 
                                                                        information and documentation used by management to 
                                                                        support their response, as well as prior treatment of 
Management believes the assessment to be contradictory to               the matter in their tax returns; 
the application of certain tax treatments 
in the current Lesotho Income Tax Act and concluded the 
matter not to be an uncertain tax                                  *    Senior counsel's opinion, to determine whether the 
position.                                                               opinion corroborates managements position and 
                                                                        response. 
The matter is therefore considered to be a KAM due to the 
extensive audit effort assessing 
the various memoranda and opinions which required the              *    We assessed the adequacy of the disclosures related 
assistance of our tax experts, and the                                  to IFRIC 23, Uncertainty over income tax treatments 
extent of discussions required with management to                       and IAS 12, Income taxes, in the notes to the 
understand their views.                                                 consolidated financial statements. 
                                                             ---------------------------------------------------------------- 
 

Other information

The Directors are responsible for the other information. The other information comprises the information included in the 164-page document titled "Gem Diamonds Limited Annual Report and accounts 2019". The other information does not include the consolidated financial statements and our auditor's report thereon.

Our opinion on the consolidated financial statements does not cover the other information and we do not express an audit opinion or any form of assurance conclusion thereon.

In connection with our audit of the consolidated financial statements, our responsibility is to read the other information identified above and, in doing so, consider whether the other information is materially inconsistent with the consolidated financial statements or our knowledge obtained in the audit, or otherwise appears to be materially misstated. If, based on the work we have performed, we conclude that there is a material misstatement of this other information, we are required to report that fact. We have nothing to report in this regard.

Responsibilities of the Directors for the Consolidated Financial Statements

The Directors are responsible for the preparation and fair presentation of the consolidated financial statements in accordance with International Financial Reporting Standards, and for such internal control as the Directors determine is necessary to enable the preparation of consolidated financial statements that are free from material misstatement, whether due to fraud or error.

In preparing the consolidated financial statements, the Directors are responsible for assessing the Group's ability to continue as a going concern, disclosing, as applicable, matters related to going concern and using the going concern basis of accounting unless the Directors either intend to liquidate the Group or to cease operations, or have no realistic alternative but to do so.

Auditor's responsibilities for the audit of the Consolidated Financial Statements

Our objectives are to obtain reasonable assurance about whether the consolidated financial statements as a whole are free from material misstatement, whether due to fraud or error, and to issue an auditor's report that includes our opinion. Reasonable assurance is a high level of assurance, but is not a guarantee that an audit conducted in accordance with ISAs will always detect a material misstatement when it exists. Misstatements can arise from fraud or error and are considered material if, individually or in the aggregate, they could reasonably be expected to influence the economic decisions of users taken on the basis of these consolidated financial statements.

As part of an audit in accordance with ISAs, we exercise professional judgement and maintain professional scepticism throughout the audit. We also:

-- Identify and assess the risks of material misstatement of the consolidated financial statements, whether due to fraud or error, design and perform audit procedures responsive to those risks, and obtain audit evidence that is sufficient and appropriate to provide a basis for our opinion. The risk of not detecting a material misstatement resulting from fraud is higher than for one resulting from error, as fraud may involve collusion, forgery, intentional omissions, misrepresentations, or the override of internal control.

-- Obtain an understanding of internal control relevant to the audit in order to design audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Group's internal control.

-- Evaluate the appropriateness of accounting policies used and the reasonableness of accounting estimates and related disclosures made by the Directors.

-- Conclude on the appropriateness of the Directors' use of the going concern basis of accounting and based on the audit evidence obtained, whether a material uncertainty exists related to events or conditions that may cast significant doubt on the Group's ability to continue as a going concern. If we conclude that a material uncertainty exists, we are required to draw attention in our auditor's report to the related disclosures in the consolidated financial statements or, if such disclosures are inadequate, to modify our opinion. Our conclusions are based on the audit evidence obtained up to the date of our auditor's report. However, future events or conditions may cause the Group to cease to continue as a going concern.

-- Evaluate the overall presentation, structure and content of the consolidated financial statements, including the disclosures, and whether the consolidated financial statements represent the underlying transactions and events in a manner that achieves fair presentation.

-- Obtain sufficient appropriate audit evidence regarding the financial information of the entities or business activities within the Group to express an opinion on the consolidated financial statements. We are responsible for the direction, supervision and performance of the Group audit. We remain solely responsible for our audit opinion.

We communicate with the Directors regarding, among other matters, the planned scope and timing of the audit and significant audit findings, including any significant deficiencies in internal control that we identify during our audit.

We also provide the Directors with a statement that we have complied with relevant ethical requirements regarding independence, and to communicate with them all relationships and other matters that may reasonably be thought to bear on our independence, and where applicable, related safeguards.

From the matters communicated with the Directors, we determine those matters that were of most significance in the audit of the consolidated financial statements of the current period and are therefore the key audit matters. We describe these matters in our auditor's report unless law or regulation precludes public disclosure about the matter or when, in extremely rare circumstances, we determine that a matter should not be communicated in our report because the adverse consequences of doing so would reasonably be expected to outweigh the public interest benefits of such communication.

Ernst & Young Inc.

Director - Philippus Dawid Grobbelaar

Registered Auditor

Chartered Accountant (SA)

10 March 2020

102 Rivonia Road

Sandton

Private Bag X14

Sandton

2146

CONSOLIDATED STATEMENT OF PROFIT OR LOSS

for the year ended 31 December 2019

 
                                                                                                    2019      2018* 
                                                                                        Notes    US$'000    US$'000 
--------------------------------------------------------------------------------------  -----  ---------  --------- 
CONTINUING OPERATIONS 
Revenue from contracts with customers                                                       2    182 047    267 290 
Cost of sales                                                                                  (129 482)  (154 953) 
--------------------------------------------------------------------------------------  -----  ---------  --------- 
Gross profit                                                                                      52 565    112 337 
Other operating income                                                                      3        845        474 
Royalties and selling costs                                                                     (16 904)   (22 905) 
Corporate expenses                                                                               (9 418)   (10 319) 
Share-based payments                                                                       28      (784)    (1 422) 
Foreign exchange gain                                                                       4      3 550      2 200 
Reclassification of foreign currency translation reserve                                    5          4          - 
--------------------------------------------------------------------------------------  -----  ---------  --------- 
Operating profit                                                                            4     29 858     80 365 
Net finance costs                                                                           6    (5 808)    (1 658) 
                                                                                               ---------  --------- 
Finance income                                                                                       668      2 032 
Finance costs                                                                                    (6 476)    (3 690) 
                                                                                               ---------  --------- 
 
Profit before tax for the year from continuing operations                                         24 050     78 707 
Income tax expense                                                                          7    (9 020)   (26 348) 
--------------------------------------------------------------------------------------  -----  ---------  --------- 
Profit after tax for the year from continuing operations                                          15 030     52 359 
--------------------------------------------------------------------------------------  -----  ---------  --------- 
DISCONTINUED OPERATION 
Loss after tax from discontinued operation                                                 16    (4 454)    (5 718) 
--------------------------------------------------------------------------------------  -----  ---------  --------- 
Profit for the year                                                                               10 576     46 641 
--------------------------------------------------------------------------------------  -----  ---------  --------- 
Attributable to: 
Equity holders of parent                                                                           2 617     26 017 
Non-controlling interests                                                                          7 959     20 624 
--------------------------------------------------------------------------------------  -----  ---------  --------- 
Earnings per share (cents)                                                                  8 
- Basic earnings for the year attributable to ordinary equity holders of the parent                  1.9       18.8 
- Diluted earnings for the year attributable to ordinary equity holders of the parent                1.8       18.3 
Earnings per share (cents) for continuing operations 
- Basic earnings for the year attributable to ordinary equity holders of the parent                  5.1       22.9 
- Diluted earnings for the year attributable to ordinary equity holders of the parent                5.0       22.4 
--------------------------------------------------------------------------------------  -----  ---------  --------- 
* Prior period figures have been restated for the reclassification impact of accounting for 
 the discontinued operation (refer Note 16, Assets held for sale). 
 

CONSOLIDATED STATEMENT OF OTHER COMPREHENSIVE INCOME

for the year ended 31 December 2019

 
                                                                                                        2019      2018 
                                                                                             Notes   US$'000   US$'000 
-------------------------------------------------------------------------------------------  -----  --------  -------- 
Profit for the year                                                                                   10 576    46 641 
Other comprehensive income that could be reclassified to the statement of profit or loss in 
 subsequent periods 
Reclassification of foreign currency translation reserve                                         5       (4)         - 
Exchange differences on translation of foreign operations                                              4 512  (43 217) 
-------------------------------------------------------------------------------------------  -----  --------  -------- 
Other comprehensive income/(expense) for the year, net of tax                                          4 508  (43 217) 
-------------------------------------------------------------------------------------------  -----  --------  -------- 
Total comprehensive income for the year, net of tax                                                   15 084     3 424 
Attributable to: 
Equity holders of the parent                                                                           1 763   (3 638) 
Non-controlling interests                                                                             13 321     7 062 
-------------------------------------------------------------------------------------------  -----  --------  -------- 
 

CONSOLIDATED STATEMENT OF FINANCIAL POSITION

As at 31 December 2019

 
                                                                            2019       2018 
                                                                Notes    US$'000    US$'000 
--------------------------------------------------------------  -----  ---------  --------- 
ASSETS 
Non-current assets 
Property, plant and equipment                                       9    323 853    289 640 
Right-of-use asset                                                 10      8 454          - 
Intangible assets                                                  11     13 653     13 272 
Receivables and other assets                                       13          -        347 
Deferred tax assets                                                23      7 871      5 746 
--------------------------------------------------------------  -----  ---------  --------- 
                                                                         353 831    309 005 
--------------------------------------------------------------  -----  ---------  --------- 
Current assets 
Inventories                                                        14     32 517     33 084 
Receivables and other assets                                       13      6 337      5 433 
Income tax receivable                                              21      8 189          - 
Cash and short-term deposits                                       15     11 303     50 812 
--------------------------------------------------------------  -----  ---------  --------- 
                                                                          58 346     89 329 
--------------------------------------------------------------  -----  ---------  --------- 
Assets held for sale                                               16      3 943        859 
--------------------------------------------------------------  -----  ---------  --------- 
Total assets                                                             416 120    399 193 
--------------------------------------------------------------  -----  ---------  --------- 
EQUITY AND LIABILITIES 
Equity attributable to equity holders of the parent 
Issued capital                                                     17      1 391      1 390 
Share premium                                                            885 648    885 648 
Other reserves                                                     17  (202 857)  (152 029) 
Accumulated losses                                                     (525 449)  (578 834) 
--------------------------------------------------------------  -----  ---------  --------- 
                                                                         158 733    156 175 
--------------------------------------------------------------  -----  ---------  --------- 
Non-controlling interests                                                 85 424     72 103 
--------------------------------------------------------------  -----  ---------  --------- 
Total equity                                                             244 157    228 278 
--------------------------------------------------------------  -----  ---------  --------- 
Non-current liabilities 
Interest-bearing loans and borrowings                              18      6 009     19 954 
Lease liabilities                                                  19      8 539          - 
Trade and other payables                                           20      1 936      1 555 
Provisions                                                         22     15 588     17 876 
Deferred tax liabilities                                           23     90 995     79 800 
--------------------------------------------------------------  -----  ---------  --------- 
                                                                         123 067    119 185 
--------------------------------------------------------------  -----  ---------  --------- 
Current liabilities 
Interest-bearing loans and borrowings                              18     16 332     14 212 
Lease liabilities                                                  19      1 940          - 
Trade and other payables                                           20     26 390     28 554 
Income tax payable                                                 21         13      8 964 
--------------------------------------------------------------  -----  ---------  --------- 
                                                                          44 675     51 730 
--------------------------------------------------------------  -----  ---------  --------- 
Liabilities directly associated with the assets held for sale      16      4 221          - 
--------------------------------------------------------------  -----  ---------  --------- 
Total liabilities                                                        171 963    170 915 
--------------------------------------------------------------  -----  ---------  --------- 
Total equity and liabilities                                             416 120    399 193 
--------------------------------------------------------------  -----  ---------  --------- 
 
Approved by the Board of Directors on 10 March 2020 and signed on its behalf by: 
 
C Elphick                                                                         M Michael 
Director                                                                           Director 
 

CONSOLIDATED STATEMENT OF CHANGES IN EQUITY

for the year ended 31 December 2019

 
                                        Attributable to the equity holders of the parent 
                                                                           Accumu- 
                                                                             lated 
                                                                         (losses)/                     Non- 
                                     Issued        Share         Other    retained              controlling      Total 
                                    capital   premium(1)   reserves(1)    earnings      Total     interests     equity 
                                    US$'000      US$'000       US$'000     US$'000    US$'000       US$'000    US$'000 
---------------------------------  --------  -----------  ------------  ----------  ---------  ------------  --------- 
Balance at 1 January 2019             1 390      885 648     (152 029)   (578 834)    156 175        72 103    228 278 
---------------------------------  --------  -----------  ------------  ----------  ---------  ------------  --------- 
Total comprehensive income                -            -         (854)       2 617      1 763        13 321     15 084 
                                   --------  -----------  ------------  ----------  ---------  ------------  --------- 
Profit for the year                       -            -             -       2 617      2 617         7 959     10 576 
Other comprehensive income                -            -         (854)           -      (854)         5 362      4 508 
                                   --------  -----------  ------------  ----------  ---------  ------------  --------- 
Share capital issued (Note 17)            1            -             -           -          1             -          1 
Transfer between reserves(2)              -            -      (50 768)      50 768          -             -          - 
Share-based payments (Note 28)            -            -           794           -        794             -        794 
---------------------------------  --------  -----------  ------------  ----------  ---------  ------------  --------- 
Balance at 31 December 2019           1 391      885 648     (202 857)   (525 449)    158 733        85 424    244 157 
---------------------------------  --------  -----------  ------------  ----------  ---------  ------------  --------- 
Balance at 1 January 2018             1 387      885 648     (123 811)   (604 851)    158 373        85 783    244 156 
Total comprehensive income                -            -      (29 655)      26 017    (3 638)         7 062      3 424 
                                   --------  -----------  ------------  ----------  ---------  ------------  --------- 
Profit for the year                       -            -             -      26 017     26 017        20 624     46 641 
Other comprehensive income                -            -      (29 655)           -   (29 655)      (13 562)   (43 217) 
                                   --------  -----------  ------------  ----------  ---------  ------------  --------- 
Share capital issued (Note 17)            3            -             -           -          3             -          3 
Share-based payments (Note 28)            -            -         1 437           -      1 437             -      1 437 
Dividends paid                            -            -             -           -          -      (20 742)   (20 742) 
---------------------------------  --------  -----------  ------------  ----------  ---------  ------------  --------- 
Balance at 31 December 2018           1 390      885 648     (152 029)   (578 834)    156 175        72 103    228 278 
---------------------------------  --------  -----------  ------------  ----------  ---------  ------------  --------- 
Attributable to discontinued 
 operation                                -            -      (51 916)   (190 107)  (242 023)             -  (242 023) 
---------------------------------  --------  -----------  ------------  ----------  ---------  ------------  --------- 
(1) Refer Note 17, Issued capital and reserves for further detail. 
 (2) The Company elected to release share-based equity reserve relating to lapsed and exercised 
 options to accumulated (losses)/retained earnings. 
 

CONSOLIDATED STATEMENT OF CASH FLOWS

for the year ended 31 December 2019

 
                                                                               2019      2018 
                                                                    Notes   US$'000   US$'000 
------------------------------------------------------------------  -----  --------  -------- 
Cash flows from operating activities                                         55 490   138 339 
                                                                           --------  -------- 
Cash generated by operations                                         24.1    81 644   149 755 
Working capital adjustments                                          24.2   (2 854)     1 916 
Interest received                                                               668     2 033 
Interest paid                                                               (5 181)   (2 742) 
Income tax paid                                                        21  (18 787)  (12 623) 
                                                                           --------  -------- 
 
Cash flows used in investing activities                                    (80 769)  (99 449) 
                                                                           --------  -------- 
Purchase of property, plant and equipment                                   (9 671)  (22 963) 
Waste stripping costs capitalised                                          (73 175)  (79 294) 
Proceeds from sale of property, plant and equipment                           2 077     2 808 
                                                                           --------  -------- 
 
Cash flows used in financing activities                                    (14 076)  (30 766) 
                                                                           --------  -------- 
Lease liabilities repaid                                                    (1 901)         - 
------------------------------------------------------------------  -----  --------  -------- 
Net financial liabilities repaid                                     24.3  (12 175)  (10 024) 
------------------------------------------------------------------  -----  --------  -------- 
- Financial liabilities repaid                                             (47 056)  (12 937) 
- Financial liabilities raised                                               34 881     2 913 
------------------------------------------------------------------  -----  --------  -------- 
Dividends paid to non-controlling interests                                       -  (20 742) 
                                                                           --------  -------- 
 
Net (decrease)/increase in cash and cash equivalents                       (39 355)     8 124 
Cash and cash equivalents at beginning of year                               50 812    47 704 
Foreign exchange differences                                                   (24)   (5 016) 
------------------------------------------------------------------  -----  --------  -------- 
Cash and cash equivalents                                                    11 443    50 812 
                                                                           --------  -------- 
Cash and cash equivalents at end of year - continuing operation              11 303    50 734 
                                                                           --------  -------- 
Cash and cash equivalents held at banks                                      11 188    50 581 
Restricted cash                                                                 115       153 
                                                                           --------  -------- 
Cash and cash equivalents at end of year - discontinued operation               140        78 
                                                                           --------  -------- 
Cash and cash equivalents held at banks                                          83        22 
Restricted cash                                                                  57        56 
                                                                           --------  -------- 
 
 

NOTES TO THE ANNUAL FINANCIAL STATEMENTS

for the year ended 31 December 2019

 
1.    NOTES TO THE ANNUAL FINANCIAL STATEMENTS 
1.1   Corporate information 
      1.1.1   Incorporation 
               The holding company, Gem Diamonds Limited (the Company), was incorporated on 29 July 2005 
               in the British Virgin Islands (BVI). The Company's registration number is 669758. 
 
               These financial statements were authorised for issue by the Board on 10 March 2020. 
 
               The Group is principally engaged in operating diamond mines. 
      1.1.2   Operational information 
               The Company has the following investments directly and indirectly in subsidiaries at 31 December 
               2019: 
              Name and            Share-              Cost of 
              registered         holding        investment(1) 
              address of                                       Country of 
              company                                           incorporation     Nature of business 
              -----------------  -------  -------------------  -----------------  ------------------------------------ 
              Subsidiaries 
              -----------------  -------  -------------------  -----------------  ------------------------------------ 
              Gem Diamond           100%                US$17  RSA                Technical, financial and management 
              Technical                                                           consulting services. 
              Services 
              (Proprietary) 
              Limited(2) 
              Illovo Corner 
              24 Fricker Road 
              Illovo Boulevard 
              Johannesburg 
              South Africa 
              -----------------  -------  -------------------  -----------------  ------------------------------------ 
              Gem Equity Group      100%            US$52 277  BVI                Dormant investment company holding 
              Limited(2)                                                          1% in Gem Diamonds Botswana 
              Ground Floor,                                                       (Proprietary) Limited, 2% in 
              Coastal Building                                                    Gem Diamonds Marketing Services BVBA 
              Wickhams Cay II                                                     and 1% in Baobab Technologies BVBA. 
              Roadtown 
              Tortola 
              VG 1130 
              British Virgin 
              Islands 
              -----------------  -------  -------------------  -----------------  ------------------------------------ 
              Letšeng           70%       US$126 000 303  Lesotho            Diamond mining and holder of mining 
              Diamonds                                                            rights. Letšeng Diamonds 
              (Proprietary)                                                       (Proprietary) Limited holds 
              Limited(2)                                                          100% of the A class shares and 70% 
              Letšeng                                                        of the B class shares in 
              Diamonds House                                                      Letšeng Diamonds Manufacturing 
              Corner Kingsway                                                     (Proprietary) Limited, which is a 
              and Old School                                                      company established in Lesotho to 
              Roads                                                               operate the in-country 
              Maseru                                                              diamond cutting and polishing. The 
              Lesotho                                                             company is currently dormant. 
              -----------------  -------  -------------------  -----------------  ------------------------------------ 
              Gem Diamonds          100%         US$5 844 579  Botswana           Diamond mining; evaluation and 
              Botswana                                                            development; and holder of mining 
              (Proprietary)                                                       licences and concessions(3) 
              Limited(2,3)                                                        . 
              Suite 103, GIA 
              Centre 
              Diamond 
              Technology Park 
              Plot 67782, Block 
              8 
              Gaborone 
              Botswana 
              -----------------  -------  -------------------  -----------------  ------------------------------------ 
              Gem Diamonds          100%        US$17 531 316  UK                 Investment holding company holding 
              Investments                                                         100% in each of Calibrated Diamonds 
              Limited(2,4)                                                        Investment Holdings 
              20 - 22 Bedford                                                     (Proprietary) Limited and Gem 
              Row                                                                 Diamonds Innovation Solutions CY 
              London                                                              Limited; 99% in Baobab Technologies 
              WC1R 4JS                                                            BVBA; and 98% in Gem Diamonds 
              United Kingdom                                                      Marketing Services BVBA, a marketing 
                                                                                  company that sells the 
                                                                                  Group's diamonds on tender in 
                                                                                  Antwerp. 
              -----------------  -------  -------------------  -----------------  ------------------------------------ 
              (1) The cost of investment represents original cost of investments at acquisition dates. 
               (2) No change in the shareholding since the prior year. 
               (3) During the year the Ghaghoo Diamond Mine, which is in the process of being sold, was 
               classified as a discontinued operation held for sale and has been disclosed separately (refer 
               Note 16, Assets held for sale). 
               (4) During the year the Group abandoned Gem Diamonds Marketing Botswana (Proprietary) Limited, 
               which was the sales and marketing office for Ghaghoo's diamonds and Gem Diamonds Technology 
               DMCC, which owned an investment property in Dubai that was sold at the end of the prior year. 
               As the operations are being closed and not sold the closure has been classified as an abandonment 
               (refer Note 5, Reclassification of foreign currency translation reserve), both these companies 
               were 100% held by Gem Diamonds Investments Limited. 
      1.1.3   Segment information 
               For management purposes, the Group is organised into geographical units as its risks and required 
               rates of return are affected predominantly by differences in the geographical regions of the 
               mines and areas in which the Group operates or areas in which operations are managed. The 
               below measures of profit or loss, assets and liabilities are reviewed by the Chief Operating 
               Decision-Maker, ie Board of Directors. The main geographical regions and the type of products 
               and services from which each reporting segment derives its revenue from are: 
                *    Lesotho (diamond mining activities); 
 
 
                *    Belgium (sales, marketing and manufacturing of 
                     diamonds); 
 
 
                *    BVI, RSA, UK and Cyprus (technical and administrative 
                     services); and 
 
 
                *    Botswana (diamond mining activities), classified as 
                     discontinued operation held for sale during the year. 
 
 
 
               Management monitors the operating results of the geographical units separately for the purpose 
               of making decisions about resource allocation and performance assessment. 
 
               During the year the Gem Diamonds Botswana (Ghaghoo Diamond Mine), which is in the process 
               of being sold, was classified as a discontinued operation held for sale and has been disclosed 
               separately (refer Note 16, Assets held for sale). The Ghaghoo mine was previously disclosed 
               in the Botswana segment. 
 
               During the year, two immaterial operations, Gem Diamonds Marketing Botswana (Proprietary) 
               Limited (GDMB) and Gem Diamonds Technology DMCC (GDTD) were abandoned. GDMB was the sales 
               and marketing office for Ghaghoo's diamonds and was previously classified as part of the Botswana 
               segment. GDTD owned an investment property in Dubai that was sold at the end of the prior 
               year and was previously classified as part of the Belgium segment (refer Note 5, Reclassification 
               of foreign currency translation reserve). 
 
               Segment performance is evaluated based on operating profit or loss. Intersegment transactions 
               are entered into under normal arm's length terms in a manner similar to transactions with 
               third parties. Segment revenue, segment expenses and segment results include transactions 
               between segments. Those transactions are eliminated on consolidation. 
 
               Segment revenue is derived from mining activities, polished manufacturing margins, and Group 
               services. 
 
               The following table presents revenue, profit/(loss), EBITDA and asset and liability information 
               from operations regarding the Group's geographical segments: 
              Year ended 31                                             BVI, RSA       Total 
              December 2019                                               UK and  Continuing  Discontinued 
                                          Lesotho             Belgium  Cyprus(1)  operations  operation(2)       Total 
                                          US$'000             US$'000    US$'000     US$'000       US$'000     US$'000 
              -----------------  ----------------  ------------------  ---------  ----------  ------------  ---------- 
              Revenue 
  Total revenue                           179 313             182 788      8 440     370 541             -     370 541 
  Intersegment                          (179 313)               (741)    (8 440)   (188 494)             -   (188 494) 
  -----------------------------  ----------------  ------------------  ---------  ----------  ------------  ---------- 
  External customers                            -             182 047          -     182 047             -     182 047 
  Depreciation and amortisation            57 293                 374        539      58 206             -      58 206 
  -----------------------------  ----------------  ------------------  ---------  ----------  ------------  ---------- 
  - Depreciation and mining 
   asset amortisation                      14 164                 374        539      15 077             -      15 077 
  - Waste stripping cost 
   amortisation                            43 129                   -          -      43 129             -      43 129 
  -----------------------------  ----------------  ------------------  ---------  ----------  ------------  ---------- 
  Share-based equity 
   transactions                               264                   6        514         784            10         794 
  -----------------------------  ----------------  ------------------  ---------  ----------  ------------  ---------- 
  Segment operating 
   profit/(loss)                           38 524                 863    (9 529)      29 858       (4 274)      25 584 
  Net finance costs                       (3 792)               (262)    (1 754)     (5 808)         (180)     (5 988) 
  -----------------------------  ----------------  ------------------  ---------  ----------  ------------  ---------- 
  Profit/(loss) before tax                 34 732                 601   (11 283)      24 050       (4 454)      19 596 
  Income tax expense                      (8 228)               (151)      (641)     (9 020)             -     (9 020) 
  -----------------------------  ----------------  ------------------  ---------  ----------  ------------  ---------- 
  Profit/(loss) for the year                                                          15 030       (4 454)      10 576 
  -----------------------------  ----------------  ------------------  ---------  ----------  ------------  ---------- 
  EBITDA                                   49 014               1 206    (9 221)    (40 999)       (4 389)      36 610 
  -----------------------------  ----------------  ------------------  ---------  ----------  ------------  ---------- 
  Segment assets                          393 107               2 477      8 722     404 306         3 943     408 249 
  -----------------------------  ----------------  ------------------  ---------  ----------  ------------  ---------- 
  Segment liabilities                      59 854                 600     16 293      76 747         4 221      80 968 
  -----------------------------  ----------------  ------------------  ---------  ----------  ------------  ---------- 
              Other segment 
              information 
              Capital 
              expenditure 
  - Property, plant and 
   equipment(3)                             8 323                 324      1 196       9 843             -       9 843 
  - Waste cost capitalised                 73 175                   -          -      73 175             -      73 175 
  -----------------------------  ----------------  ------------------  ---------  ----------  ------------  ---------- 
  Total capital expenditure                81 498                 324      1 196      83 018             -      83 018 
  -----------------------------  ----------------  ------------------  ---------  ----------  ------------  ---------- 
              (1) No revenue was generated in BVI and Cyprus. 
               (2) The results of Gem Diamonds Botswana, which has been classified as a discontinued operation 
               held for sale and which was previously included in the Botswana segment, has been reclassified 
               to the discontinued operation segment. 
               (3) Capital expenditure includes non-cash movements in rehabilitation assets relating to 
               changes in rehabilitation estimates for the Lesotho segment. 
 
              Included in annual revenue for the current year is revenue from one customer which amounted 
               to US$21.1 million arising from sales reported in the Belgium segments. 
 
               Segment assets and liabilities do not include deferred tax assets and liabilities of US$7.9 
               million and US$91.0 million respectively. 
 
               Total revenue for the year is lower than that of the prior year mainly as a result of the 
               lower volume of large diamonds recovered during the year. The revenue of the prior year was 
               specifically bolstered by the recovery and sale of the 910 carat Lesotho Legend which sold 
               for US$40.0 million. 
                                                                    BVI, RSA, UK 
              Year ended 31               Lesotho  Belgium(1)      and Cyprus(2)  Continuing  Discontinued       Total 
              December 2018               US$'000     US$'000            US$'000  operations  operation(3)     US$'000 
              -----------------  ----------------  ----------  -----------------  ----------  ------------  ---------- 
              Revenue 
  Total revenue                           262 636     267 370              9 440     539 446             -     539 446 
  Intersegment                          (262 636)       (432)            (9 088)   (272 156)             -   (272 156) 
  -----------------------------  ----------------  ----------  -----------------  ----------  ------------  ---------- 
  External customers                            -     266 938                352     267 290             -     267 290 
  Depreciation and amortisation            76 537         204                120      76 861            43      76 904 
  -----------------------------  ----------------  ----------  -----------------  ----------  ------------  ---------- 
  - Depreciation and mining 
   asset amortisation                       8 332         204                120       8 656            43       8 699 
  - Waste stripping cost 
   amortisation                            68 205           -                  -      68 205             -      68 205 
  -----------------------------  ----------------  ----------  -----------------  ----------  ------------  ---------- 
  Share-based equity 
   transactions                               317           6              1 099       1 422            15       1 437 
  -----------------------------  ----------------  ----------  -----------------  ----------  ------------  ---------- 
  Segment operating 
   profit/(loss)                           88 815       2 025           (10 475)      80 365       (5 528)      74 837 
  Net finance costs                           743           -            (2 401)     (1 658)         (190)     (1 848) 
  -----------------------------  ----------------  ----------  -----------------  ----------  ------------  ---------- 
  Profit/(loss) before tax                 89 558       2 025           (12 876)      78 707       (5 718)      72 989 
  Income tax expense                     (20 779)       (542)            (5 027)    (26 348)             -    (26 348) 
  -----------------------------  ----------------  ----------  -----------------  ----------  ------------  ---------- 
  Profit for the year                                                                 52 359       (5 718)      46 641 
  -----------------------------  ----------------  ----------  -----------------  ----------  ------------  ---------- 
  EBITDA                                   95 607       2 114           (10 040)      87 680       (5 423)      82 257 
  -----------------------------  ----------------  ----------  -----------------  ----------  ------------  ---------- 
  Segment assets                          358 648       3 305             27 552     389 505         3 942     393 447 
  -----------------------------  ----------------  ----------  -----------------  ----------  ------------  ---------- 
  Segment liabilities                      62 753         689             23 637      87 079         4 036      91 115 
  -----------------------------  ----------------  ----------  -----------------  ----------  ------------  ---------- 
              Other segment 
              information 
              Capital 
              expenditure 
  - Property, plant and 
   equipment(4)                            22 628       1 880                899      25 407             -      25 407 
  - Waste cost capitalised                 79 294           -                  -      79 294             -      79 294 
  -----------------------------  ----------------  ----------  -----------------  ----------  ------------  ---------- 
  Total capital expenditure               101 922       1 880                899     104 701             -     104 701 
  -----------------------------  ----------------  ----------  -----------------  ----------  ------------  ---------- 
              (1) The results of Gem Diamonds Marketing Botswana, previously included in the Botswana segment, 
               have been reclassified to the Belgium segment. 
               (2) No revenue was generated in BVI and Cyprus. 
               (3) The results of Gem Diamonds Botswana, which has been classified as a discontinued operation 
               held for sale and which was previously included in the Botswana segment, has been reclassified 
               to the Discontinued operation segment. 
               (4) Capital expenditure includes non-cash movements in rehabilitation assets relating to 
               changes in rehabilitation estimates for the Lesotho segment. 
              Included in annual revenue for the 2018 year is revenue from two customers which amounted 
               to US$88.3 million arising from sales reported in the Belgium segments. 
 
               Segment assets and liabilities do not include deferred tax assets and liabilities of US$5.7 
               million and US$79.8 million respectively. 
1.2   Summary of significant accounting policies 
      1.2.1   Basis of preparation 
              The financial statements of the Group have been prepared in accordance with International 
              Financial Reporting Standards (IFRS). These financial statements have been prepared under 
              the historical cost basis except for assets and liabilities measured at fair value. The accounting 
              policies have been consistently applied except for the adoption of the new standards and interpretations 
              detailed on the following pages. 
 
              The functional currency of the Company and certain of its subsidiaries is US dollar, which 
              is the currency of the primary economic environment in which the entities operate. All amounts 
              are expressed in US dollar and rounded to the nearest thousand. The financial statements of 
              subsidiaries whose functional and reporting currency is in currencies other than US dollar 
              have been converted into US dollar on the basis as set out in Note 1.2.16, Foreign currency 
              translations. 
 
              The preparation of financial statements in conformity with IFRS requires the use of certain 
              critical accounting estimates. It also requires management to exercise its judgement in the 
              process of applying the Group's accounting policies. The areas involving a higher degree of 
              judgement or complexity, or areas where assumptions and estimates are significant to the financial 
              statements, are disclosed in Note 1.2.28, Critical accounting estimates and judgements. 
 
              Changes in accounting policies and disclosures 
              New and amended standards and interpretations 
              The Group adopted IFRS 16 Leases for the first time using the modified retrospective method 
              of adoption with the date of initial application being 1 January 2019 without restating comparative 
              figures. The nature and effect of the changes as a result of adoption of this new accounting 
              standard is described below. All other accounting policies adopted are consistent with those 
              applied in the previous financial year. 
 
              IFRS 16 Leases 
              IFRS 16 supersedes IAS 17 Leases, IFRIC 4 Determining whether an Arrangement contains a Lease, 
              SIC-15 Operating Leases-Incentives and SIC-27 Evaluating the Substance of Transactions Involving 
              the Legal Form of a Lease. The standard sets out the principles for the recognition, measurement, 
              presentation and disclosure of leases and requires lessees to account for all leases under 
              a single on-balance sheet model. 
 
              The nature of the effect of adoption of IFRS 16 
              The Group has lease contracts for various items of buildings, plant and equipment and vehicles. 
              Before the adoption of IFRS 16 the Group determined whether an arrangement contained a lease 
              based on whether the fulfilment of the arrangement was dependent on the use of a specific 
              asset or assets or the arrangement conveyed a right to use the asset. For leases that contain 
              one lease component and one or more additional lease or non-lease components, the Group allocated 
              the consideration in the contract to each lease component on the basis of the relative stand-alone 
              price of the lease component and the aggregate stand-alone price of the non-lease components. 
              A reassessment would be made after inception of the lease only if one of the following applied: 
              (a) There was a change in contractual terms, other than a renewal or extension of the arrangement; 
              (b) A renewal option was exercised or extension granted, unless the term of the renewal or 
              extension was initially included in the lease term; (c) There was a change in the determination 
              of whether fulfilment is dependent on a specific asset; or (d) There was a substantial change 
              to the asset. Where a reassessment was made, lease accounting commenced or ceased from the 
              date when the change in circumstances gave rise to the reassessment for scenarios (a), (c) 
              or (d) and at the date of renewal or extension period for scenario (b). 
 
              Leases where the lessor retained substantially all the risks and rewards of ownership were 
              classified as operating leases. Payments made under operating leases (net of any incentives 
              received from the lessor) were charged to the statement of profit or loss on a straight-line 
              basis over the period of the lease. When the Group was a party to a lease where there was 
              a contingent rental element associated within the agreement, a cost was recognised as and 
              when the contingency materialised. 
 
              Upon adoption of IFRS 16, the Group applies a single recognition and measurement approach 
              for all leases, except for short-term leases and leases of low-value assets. The standard 
              provides specific transition requirements and practical expedients, which have been applied 
              by the Group. The Group did not have any finance leases at the time IFRS 16 was adopted on 
              1 January 2019. 
 
              Leases previously accounted for as operating leases 
              The Group recognised a new category of assets, namely right-of-use assets and lease liabilities 
              for those leases previously classified as operating leases, except for short-term leases and 
              leases of low-value assets. For all leases, the right-of-use assets were recognised based 
              on the amount equal to the lease liabilities on the date of initial application (ie. 1 January 
              2019), adjusted by the amount of any prepaid or accrued lease payments relating to that lease. 
              Lease liabilities were recognised based on the present value of the remaining lease payments, 
              discounted using the incremental borrowing rate at the date of initial application. 
 
              The Group also applied the available practical expedients wherein it: 
               *    used a single discount rate to a portfolio of leases 
                    with reasonably similar characteristics; 
 
 
               *    applied the short-term leases exemptions to lease 
                    contracts with a lease term that ends within 12 
                    months of the date of initial application; 
 
 
               *    applied the materiality exemption on transition to 
                    the lease contracts for which the underlying asset 
                    was of a low value and was not qualitatively material 
                    to the Group; 
 
 
               *    excluded the initial direct costs from the 
                    measurement of the right-of-use asset at the date of 
                    initial application; 
 
 
               *    used hindsight for historical lease payments made to 
                    determine the value of the liability and right-of-use 
                    asset at date of initial application where the 
                    contract did not refer to an annual fixed escalation 
                    rate; and 
 
 
               *    used hindsight to determine the lease term if the 
                    contract contained options to extend or terminate the 
                    lease. 
 
 
 
              Based on the foregoing, as at 1 January 2019: 
               *    right-of-use assets of US$9.6 million, net of accrued 
                    lease payments of $1.4 million, were recognised and 
                    presented separately in the statement of financial 
                    position; 
 
 
               *    additional lease liabilities of US$11.0 million were 
                    recognised and presented separately in the statement 
                    of financial position; and 
 
 
               *    deferred tax assets and liabilities of $2.4 million 
                    respectively were presented separately in the 
                    statement of financial position. 
 
 
 
              The effect of adoption of IFRS 16 as at 1 January 2019 (increase/(decrease) is as follows: 
 
                                                                                                        1 January 2019 
                                                                                                               US$'000 
              -----------------------------------------------  ------------------------------------------------------- 
              Assets 
  Right-of-use assets                                                                                            9 612 
  Deferred tax assets                                                                                            2 375 
  -----------------------------------------------------------  ------------------------------------------------------- 
  Total assets                                                                                                  11 987 
  -----------------------------------------------------------  ------------------------------------------------------- 
              Liabilities 
  Lease liabilities                                                                                             11 043 
  Deferred tax liabilities                                                                                       2 375 
  Trade and other payables                                                                                     (1 431) 
  -----------------------------------------------------------  ------------------------------------------------------- 
  Total liabilities                                                                                             11 987 
  -----------------------------------------------------------  ------------------------------------------------------- 
 
              The Ghaghoo mining operation was placed on care and maintenance in 2017 and subsequently classified 
               as a discontinued operation held for sale during the current year. The entity only has short-term 
               leases and leases of low-value assets and the adoption of IFRS 16 at Ghaghoo, did not have 
               an impact at a Group level. 
 
               The lease liabilities as at 1 January 2019 can be reconciled to the operating lease commitments 
               as at 31 December 2018 as follows: 
                                                                                                        1 January 2019 
                                                                                                               US$'000 
              -----------------------------------------------  ------------------------------------------------------- 
  Operating lease commitments as at 31 December 2018                                                           136 423 
  Weighted average incremental borrowing rate as at 1 January 
   2019                                                                                                            10% 
  Discounted operating lease commitments at 1 January 2019                                                     128 490 
              Less: 
  Commitments relating to short-term leases                                                                      (102) 
  Variable lease payments                                                                                    (120 899) 
  Out of scope leases eg mining leases                                                                         (1 069) 
              Add: 
  Arrangements not previously separately disclosed as 
   operating leases commitments                                                                                  4 623 
  -----------------------------------------------------------  ------------------------------------------------------- 
  Lease liabilities as at 1 January 2019                                                                        11 043 
  -----------------------------------------------------------  ------------------------------------------------------- 
 
    For amounts recognised in the statement of financial position and profit or loss at year end, 
    refer Note 10, Right-of-use assets and Note 19, Lease liabilities. 
 
    Management applied judgement when determining whether contracts contained a lease. Refer Note 
    1.2.28, Critical accounting estimates and judgements. 
 
    IFRIC Interpretation 23 Uncertainty over Income Tax Treatment 
    The interpretation addresses the accounting for income taxes when tax treatments involve uncertainty 
    that affects the application of IAS 12 Income Taxes. It does not apply to taxes or levies 
    outside the scope of IAS 12, nor does it specifically include requirements relating to interest 
    and penalties associated with uncertain tax treatments. The interpretation specifically addresses 
    the following: 
     *    whether an entity considers uncertain tax treatments 
          separately; 
 
 
     *    the assumptions an entity makes about the examination 
          of tax treatments by taxation authorities; 
 
 
     *    how an entity determines taxable profit (tax loss), 
          tax bases, unused tax losses, unused tax credits and 
          tax rates; and 
 
 
     *    how an entity considers changes in facts and 
          circumstances. 
 
 
 
    The Group determines whether to consider each uncertain tax treatment separately or together 
    with one or more other uncertain tax treatments and uses the approach that better predicts 
    the resolution of the uncertainty. 
 
    The Group applies judgement in identifying uncertainties over income tax treatments, as referred 
    under Note 1.2.28, Critical accounting estimates and judgements, and concluded that there 
    were no uncertain tax treatments relating to the current year. The interpretation did not 
    have an impact on the consolidated financial statements of the Group. 
 
    Several other amendments, interpretations and improvements apply for the first time in 2019, 
    and are listed in the table below. These amendments and interpretations do not have an impact 
    on the consolidated financial statements of the Group. 
 
  Standard, amendment, interpretation or improvement 
  -----------------------------------------------------------  ------------------------------------------------------- 
  Amendments to IFRS 9                                         Prepayment Features with Negative Compensation 
  -----------------------------------------------------------  ------------------------------------------------------- 
  Amendments to IAS 19                                         Plan Amendment, Curtailment or Settlement 
  -----------------------------------------------------------  ------------------------------------------------------- 
  Amendments to IAS 28                                         Long-term Interests in Associates and Joint Ventures 
  -----------------------------------------------------------  ------------------------------------------------------- 
  Improvements to IFRS 3                                       Business Combinations - previously held interests in 
                                                               joint operation 
  -----------------------------------------------------------  ------------------------------------------------------- 
  Improvements to IFRS 11                                      Joint Arrangements - previously held interests in joint 
                                                               operation 
  -----------------------------------------------------------  ------------------------------------------------------- 
  Improvements to IAS 12                                       Income Taxes - income tax consequences of payments on 
                                                               financial instruments classified as 
                                                               equity 
  -----------------------------------------------------------  ------------------------------------------------------- 
  Improvements to IAS 23                                       Borrowing Costs - borrowing costs eligible for 
                                                               capitalisation 
  -----------------------------------------------------------  ------------------------------------------------------- 
 
  Standards issued but not yet effective 
   The Group has not early adopted any standards, interpretations or amendments that have been 
   issued but are not yet effective. The standards, interpretations and amendments that are issued, 
   but not yet effective, up to the date of issuance of the Group's financial statements are 
   listed in the table below, and are not expected to impact the Group. 
  Standard, amendment, interpretation or improvement 
  -------------------------------------------------------------------------------------------------------------------- 
  IFRS 17                                                      Insurance Contracts 
  -----------------------------------------------------------  ------------------------------------------------------- 
  Amendments to IFRS 3                                         Definition of a Business 
  -----------------------------------------------------------  ------------------------------------------------------- 
  Amendments to IFRS 9, IAS 39 and IFRS 7                      Interest Rate Benchmark Reform 
  -----------------------------------------------------------  ------------------------------------------------------- 
  Amendments to IAS 1 and IAS 8                                Definition of Material Costs 
  -----------------------------------------------------------  ------------------------------------------------------- 
 
 
 
          Business environment and country risk 
           The Group's operations are subject to country risk being the economic, political and social 
           risks inherent in doing business in certain areas of Africa and Europe. These risks include 
           matters arising out of the policies of the government, economic conditions, imposition of 
           or changes to taxes and regulations, foreign exchange rate fluctuations and the enforceability 
           of contract rights. 
           The consolidated financial information reflects management's assessment of the impact of these 
           business environments on the operations and the financial position of the Group. The future 
           business environment may differ from management's assessment. 
  1.2.2   Going concern 
           The Company's business activities, together with the factors likely to affect its future development, 
           performance and position have been assessed by management. The financial position of the Company, 
           its cash flows and liquidity position are presented in the Annual Report and Accounts. In 
           addition, Note 27, Financial risk management, includes the Company's objectives, policies 
           and processes for managing its capital; its financial risk management objectives; details 
           of its financial instruments; and its exposures to market risk, credit risk and liquidity 
           risk. 
 
           After making enquiries which include reviews of forecasts and budgets, timing of cash flows, 
           borrowing facilities and sensitivity analyses and considering the uncertainties described 
           in this report either directly or by cross-reference, the Directors have a reasonable expectation 
           that the Group and the Company have adequate financial resources to continue in operational 
           existence for the foreseeable future. For this reason, they continue to adopt the going concern 
           basis in preparing the Annual Report and Accounts of the Company. 
 
           These financial statements have been prepared on a going concern basis which assumes that 
           the Group will be able to meet its liabilities as they fall due for the foreseeable future. 
  1.2.3   Basis of consolidation 
           The consolidated financial statements incorporate the financial statements of the Company 
           and entities controlled by the Company as at 31 December 2019. 
 
           Subsidiaries 
           Subsidiaries are consolidated from the date of their acquisition, being the date on which 
           the Group obtains control, and continue to be consolidated until the date that such control 
           ceases. An investor controls an investee when it is exposed, or has rights, to variable returns 
           from its involvement with the investee and has the ability to affect those returns through 
           its power over the investee. To meet the definition of control in IFRS 10, all three of the 
           following criteria must be met: (a) an investor has power over an investee; (b) the investor 
           has exposure, or rights, to variable returns from its involvement with the investee; and (c) 
           the investor has the ability to use its power over the investee to affect the amount of the 
           investor's returns. The financial statements of subsidiaries used in the preparation of the 
           consolidated financial statements are prepared for the same reporting year as the parent company 
           and are based on consistent accounting policies. All intragroup balances and transactions, 
           including unrealised profits arising from them, are eliminated in full. 
 
           Non-controlling interests 
           Non-controlling interests represent the equity in a subsidiary not attributable, directly 
           or indirectly, to the parent company and is presented separately within equity in the consolidated 
           statement of financial position, separately from equity attributable to owners of the parent. 
           Losses within a subsidiary are attributed to the non-controlling interest even if that results 
           in a deficit balance. 
  1.2.4   Exploration and evaluation expenditure 
           Exploration and evaluation activity involves the search for mineral resources, the determination 
           of technical feasibility and the assessment of commercial viability of an identified resource. 
           Exploration and evaluation activity includes: 
            *    acquisition of rights to explore; 
 
 
            *    researching and analysing historical exploration 
                 data; 
 
 
            *    gathering exploration data through topographical, 
                 geochemical and geophysical studies; 
 
 
            *    exploratory drilling, trenching and sampling; 
 
 
            *    determining and examining the volume and grade of the 
                 resource; 
 
 
            *    surveying transportation and infrastructure 
                 requirements; and 
 
 
            *    conducting market and finance studies. 
 
 
 
           Administration costs that are not directly attributable to a specific exploration area are 
           charged to the statement of profit or loss. Licence costs paid in connection with a right 
           to explore in an existing exploration area are capitalised, as a component of property, plant 
           and equipment, and amortised over the term of the permit. 
 
           Exploration and evaluation expenditure is capitalised as incurred. Capitalised exploration 
           expenditure is recorded as a component of property, plant and equipment, as an exploration 
           and development asset, at cost less accumulated impairment charges. As the asset is not available 
           for use, it is not depreciated. 
 
           All capitalised exploration and evaluation expenditure is monitored for indications of impairment. 
           Where a potential impairment is indicated, assessments are performed for each area of interest 
           in conjunction with the group of operating assets (representing a cash-generating unit (CGU)) 
           to which the exploration is attributed. To the extent that exploration expenditure is not 
           expected to be recovered, it is charged to the statement of profit or loss. Exploration areas 
           where reserves have been discovered, but require major capital expenditure before production 
           can begin, are continually evaluated to ensure that commercial quantities of reserves exist 
           or to ensure that additional exploration work is under way as planned. 
 
           Management is required to make certain estimates and assumptions when determining whether 
           the commercial viability of an identified resource and when determining whether indicators 
           of impairment exist as referred under Note 1.2.28, Critical accounting estimates and judgements. 
  1.2.5   Development expenditure 
           When proved reserves are determined and development is sanctioned, capitalised exploration 
           and evaluation expenditure is reclassified from exploration phase to development phase. As 
           the asset is not available for use, during the development phase, it is not depreciated. On 
           completion of the development phase, any capitalised exploration and evaluation expenditure 
           already capitalised to development asset, together with the subsequent development expenditure, 
           is reclassified within property, plant and equipment to mining assets and depreciated on the 
           basis as laid out in Note 1.2.6, Property, plant and equipment. 
 
           All development expenditure is monitored for indicators of impairment annually. Management 
           is required to make certain estimates and assumptions when determining whether indicators 
           of impairment exist as referred under Note 1.2.28, Critical accounting estimates and judgements. 
  1.2.6   Property, plant and equipment 
           Property, plant and equipment are recorded at cost less accumulated depreciation and accumulated 
           impairment losses. Cost includes expenditure that is directly attributable to the acquisition 
           and construction of the items, to get the asset in its condition and location for its intended 
           use among others, professional fees, and for qualifying assets, borrowing costs capitalised 
           in accordance with the Group's accounting policies. 
 
           Subsequent costs to replace a component of an item of property, plant and equipment that is 
           accounted for separately, is capitalised when the cost of the item can be measured reliably, 
           with the carrying amount of the original component being written off. All repairs and maintenance 
           are charged to the statement of profit or loss during the financial period in which they are 
           incurred. 
 
           Depreciation commences when an asset is available for use. Depreciation is charged so as to 
           write off the depreciable amount of the asset to its residual value over its estimated useful 
           life, using a method that reflects the pattern in which the asset's future economic benefits 
           are expected to be consumed by the Group. 
          Item                            Method             Useful life 
          ------------------------------  -----------------  --------------------------------------------------------- 
          Mining assets                   Straight line      Lesser of life of mine or period of mining lease 
          ------------------------------  -----------------  --------------------------------------------------------- 
          Decommissioning assets          Straight line      Lesser of life of mine or period of mining lease 
          ------------------------------  -----------------  --------------------------------------------------------- 
          Leasehold improvements          Straight line      Lesser of three years or period of mining lease 
          ------------------------------  -----------------  --------------------------------------------------------- 
          Plant and equipment             Straight line      Three to 10 years 
          ------------------------------  -----------------  --------------------------------------------------------- 
          Other assets                    Straight line      Two to five years 
          ------------------------------  -----------------  --------------------------------------------------------- 
 
            Pre-production and in production stripping costs 
            Costs associated with removal of waste overburden are classified as stripping costs. 
 
            Stripping activities that are undertaken during the production phase of a surface mine may 
            create two benefits, being either the production of inventory or improved access to the ore 
            to be mined in the future. Where the benefits are realised in the form of inventory produced 
            in the period, the production stripping costs are accounted for as part of the cost of producing 
            those inventories. Where production stripping costs are incurred and where the benefit is 
            the creation of mining flexibility and improved access to ore to be mined in the future, the 
            costs are recognised as a non-current asset if: 
            (a) future economic benefits (being improved access to the orebody) are probable; 
            (b) the component of the orebody for which access will be improved can be accurately identified; 
            and 
            (c) the costs associated with the improved access can be reliably measured. 
 
            The non-current asset recognised is referred to as a 'stripping activity asset' and is separately 
            disclosed in Note 9, Property, plant and equipment. If all the criteria are not met, the production 
            stripping costs are charged to the statement of profit or loss as operating costs. The stripping 
            activity asset is initially measured at cost, which is the accumulation of costs directly 
            incurred to perform the stripping activity that improves access to the identified component 
            of ore, plus an allocation of directly attributable overhead costs. 
 
            If incidental operations are occurring at the same time as the production stripping activity, 
            but are not necessary for the production stripping activity to continue as planned, these 
            costs are not included in the cost of the stripping activity asset. If the costs of the stripping 
            activity asset and the inventory produced are not separately identifiable, a relevant production 
            measure is used to allocate the production stripping costs between the inventory produced 
            and the stripping activity asset. 
 
            The stripping activity asset is subsequently amortised over the expected useful life of the 
            identified component of the orebody that became more accessible as a result of the stripping 
            activity. Based on proven and probable reserves, the expected average stripping ratio over 
            the average life of the area being mined is used to amortise the stripping activity. As a 
            result, the stripping activity asset is carried at cost less amortisation and any impairment 
            losses. The average life of area cost per tonne is calculated as the total expected costs 
            to be incurred to mine the orebody divided by the number of tonnes expected to be mined. The 
            average life of area stripping ratio and the average life of area cost per tonne are recalculated 
            annually in light of additional knowledge and changes in estimates. Changes in the stripping 
            ratio are accounted for prospectively as a change in estimate. 
 
            Management applies judgement to calculate and allocate the production stripping costs to inventory 
            and/or the stripping activity asset(s) as referred under Note 1.2.28, Critical accounting 
            estimates and judgements. 
  1.2.7   Borrowing costs 
           Borrowing costs directly attributable to the acquisition, construction or production of a 
           qualifying asset that necessarily takes a substantial period of time to get ready for its 
           intended use or sale are capitalised as part of the cost of the asset. All other borrowing 
           costs are expensed in the period in which they occur. Borrowing costs consist of interest 
           and other costs that an entity incurs in connection with the borrowing of funds. 
  1.2.8   Non-current assets held for sale and discontinued operations 
           The Group classifies non-current assets and disposal groups as held for sale if their carrying 
           amounts will be recovered principally through a sale transaction rather than through continuing 
           use. Such non-current assets and disposal groups classified as held for sale are measured 
           at the lower of their carrying amount and fair value less costs to sell. Costs to sell are 
           the incremental costs directly attributable to the sale, excluding the finance costs and income 
           tax expense. 
 
           The criteria for held-for-sale classification is regarded as met only when the sale is highly 
           probable, and the asset or disposal group is available for immediate sale in its present condition. 
           Actions required to complete the sale should indicate that it is unlikely that significant 
           changes to the sale will be made or that it will be withdrawn. Management must be committed 
           to the sale expected within one year from the date of the classification. 
 
           Property, plant and equipment and intangible assets are not depreciated or amortised once 
           classified as held for sale. 
 
           Assets and liabilities classified as held for sale are presented separately as current items 
           in the statement of financial position. 
 
           A disposal group qualifies as a discontinued operation if it is a component of an entity that 
           either has been disposed of, or is classified as held for sale, and: 
           (a) represents a separate major line of business or geographical area of operations; 
           (b) is part of a single co-ordinated plan to dispose of a separate major line of business 
           or geographical area of operations; or 
           (c) is a subsidiary acquired exclusively with a view to re-sale. 
 
           Discontinued operations are excluded from the results of continuing operations and are presented 
           as a single amount as profit or loss after tax from discontinued operations in the statement 
           of profit or loss. 
 
           Additional disclosures are provided Note 16, Assets held for sale. All other notes to the 
           financial statements include amounts for continuing operations, unless indicated otherwise. 
  1.2.9   Goodwill 
           Goodwill is initially measured at cost, being the excess of the aggregate of the acquisition 
           date fair value of the consideration transferred and the amount recognised for the non-controlling 
           interest (and where the business combination is achieved in stages, the acquisition date fair 
           value of the acquirer's previously held equity interest in the acquiree) over the net identifiable 
           amounts of the assets acquired and the liabilities assumed in the business combination. 
 
           Assets acquired and liabilities assumed in transactions separate to the business combinations, 
           such as the settlement of pre-existing relationships or post-acquisition remuneration arrangements, 
           are accounted for separately from the business combination in accordance with their nature 
           and applicable IFRS. 
 
           Identifiable intangible assets, meeting either the contractual legal or separability criterion 
           are recognised separately from goodwill. Contingent liabilities representing a present obligation 
           are recognised if the acquisition date fair value can be measured reliably. 
 
           If the aggregate of the acquisition date fair value of the consideration transferred and the 
           amount recognised for the non-controlling interest (and where the business combination is 
           achieved in stages, the acquisition date fair value of the acquirer's previously held equity 
           interest in the acquiree) is lower than the fair value of the assets, liabilities and contingent 
           liabilities, and the fair value of any pre-existing interest held in the business acquired, 
           the difference is recognised in profit and loss. 
 
           After initial recognition, goodwill is measured at cost less any accumulated impairment losses. 
           For the purpose of impairment testing, goodwill acquired in a business combination is, from 
           the acquisition date, allocated to each of the Group's CGUs (or groups of CGUs) that are expected 
           to benefit from the combination, irrespective of whether other assets or liabilities of the 
           acquiree are assigned to those units. Each unit or group of units to which goodwill is allocated 
           shall represent the lowest level within the entity at which the goodwill is monitored for 
           internal management purposes, and shall not be larger than an operating segment before aggregation. 
 
           Where goodwill forms part of a CGU and part of the operation within that unit is disposed 
           of, the goodwill associated with the operation disposed of is included in the carrying amount 
           of the operation when determining the gain or loss on disposal of the operation. Goodwill 
           disposed of in this circumstance is measured based on the relative values of the operation 
           disposed of and the portion of the CGU retained. 
  1.2.10  Financial instruments 
           The Group shall only recognise a financial instrument only when the Group becomes a party 
           to the contractual provisions of the instrument. A financial instrument is any contract that 
           gives rise to a financial asset of one entity and a financial liability or equity instrument 
           of another entity. 
 
           Financial assets 
           Management determines the classification of its financial assets at initial recognition and 
           re-evaluates this designation at every reporting date based on the business model for managing 
           these financial assets and the contractual cash flow characteristics. Currently the Group 
           only has financial assets at amortised cost which consist of receivables and other assets, 
           and cash and short-term deposits which is held within a business model to collect contractual 
           cash flows and for which the contractual cash flow characteristics are solely payments of 
           principal interest. When financial assets are recognised initially, they are measured at fair 
           value plus (in the case of financial assets not at fair value through profit or loss) directly 
           attributable costs. 
 
           Financial assets at amortised cost 
           Financial assets at amortised cost are non-derivative financial assets with fixed or determinable 
           payments that are not quoted in an active market. They are included in current assets, except 
           those with maturities greater than 12 months after the reporting date. These are classified 
           as non-current assets. Such assets are carried at amortised cost using the effective interest 
           rate method, if the time value of money is significant, less any allowance for impairment. 
           Gains and losses are recognised in the statement of profit or loss when the financial assets 
           at amortised are derecognised or impaired, as well as through the amortisation process. 
 
           Derecognition 
           A financial asset is primarily derecognised when the rights to receive cash flows from the 
           asset have expired or the Group has transferred its rights to receive cash flows from the 
           asset. Gains or losses from derecognition of financial assets are recognised in the statement 
           of profit or loss. 
 
           Financial liabilities 
           Financial liabilities, which consist of interest-bearing borrowings and trade and other payables, 
           are recognised initially at fair value, net of transaction costs incurred. Financial liabilities 
           are subsequently stated at amortised cost; any difference between proceeds (net of transaction 
           costs) and the redemption value is recognised in the statement of profit or loss, unless capitalised 
           in accordance with Note 1.2.7, Borrowing costs, over the contractual period of the financial 
           liability, using the effective interest rate method. 
 
           Derecognition 
           A financial liability is derecognised when the obligation under the liability is discharged 
           or cancelled or expires. Gains or losses from derecognition of financial liabilities are recognised 
           in the statement of profit or loss. 
  1.2.11  Fair value measurement 
           The Group measures financial instruments at fair value at each reporting date. 
 
           Fair value is the price that would be received to sell an asset or paid to transfer a liability 
           in an orderly transaction between market participants at the measurement date. The fair value 
           measurement is based on the presumption that the transaction to sell the asset or transfer 
           the liability takes place either: 
            *    in the principal market for the asset or liability; 
                 or 
 
 
            *    in the absence of a principal market, in the most 
                 advantageous market for the asset or liability. 
 
 
 
           The principal or the most advantageous market must be accessible by the Group. 
 
           The fair value of an asset or a liability is measured using the assumptions that market participants 
           would use when pricing the asset or liability, assuming that market participants act in their 
           economic best interest. 
 
           A fair value measurement of a non-financial asset takes into account a market participant's 
           ability to generate economic benefits by using the asset in its highest and best use or by 
           selling it to another market participant that would use the asset in its highest and best 
           use. 
 
           The Group uses valuation techniques that are appropriate in the circumstances and for which 
           sufficient data is available to measure fair value, maximising the use of relevant observable 
           inputs and minimising the use of unobservable inputs. All assets and liabilities for which 
           fair value is measured or disclosed in the financial statements are categorised within the 
           fair value hierarchy, described as follows, based on the lowest level input that is significant 
           to the fair value measurement as a whole: 
            *    Level 1: Quoted (unadjusted) market prices in active 
                 markets for identical assets or liabilities. 
 
 
            *    Level 2: Valuation techniques for which the lowest 
                 level input that is significant to the fair value 
                 measurement is directly or indirectly observable. 
 
 
            *    Level 3: Valuation techniques for which the lowest 
                 level input that is significant to the fair value 
                 measurement is unobservable. 
 
 
 
           For assets and liabilities that are recognised in the financial statements on a recurring 
           basis, the Group determines whether transfers have occurred between levels in the hierarchy 
           by reassessing categorisation (based on the lowest level input that is significant to the 
           fair value measurement as a whole) at the end of each reporting period. 
  1.2.12  Impairments 
           Non-financial assets 
           Assets that are subject to amortisation or depreciation are reviewed for impairment if it 
           is determined that there is an indication of impairment in accordance with IAS 36. Goodwill 
           is assessed for impairment on an annual basis. An impairment loss is recognised for the amount 
           by which the asset's carrying amount exceeds its recoverable amount. The recoverable amount 
           is the higher of an asset's fair value less costs to sell and value in use. In assessing value 
           in use, the estimated future cash flows are discounted to their present value using a pre-tax 
           discount rate that reflects current market assessments of the time value of money and the 
           risks specific to the asset. 
 
           Non-financial assets that were previously impaired are reviewed for possible reversal of the 
           impairment at each reporting date. A previously recognised impairment loss is reversed only 
           if there has been a change in the estimates used to determine the asset's recoverable amount 
           since the last impairment loss was recognised. If that is the case, the carrying amount of 
           the asset is increased to its recoverable amount. That increased amount cannot exceed the 
           carrying amount that would have been determined, net of depreciation, had no impairment loss 
           been recognised for the asset in prior years. Such a reversal is recognised in the statement 
           of profit or loss. After such a reversal the depreciation charge is adjusted in future periods 
           to allocate the asset's revised carrying amount, less any residual value, on a systematic 
           basis over its remaining useful life. 
 
           Financial assets 
           Assets carried at amortised cost 
           The Group recognises an allowance for expected credit losses (ECLs) for all financial assets 
           at amortised costs in the statement of profit or loss. ECLs are based on the difference between 
           the contractual cash flows due in accordance with the contract and all the cash flows that 
           the Group expects to receive, discounted at an approximation of the original effective interest 
           rate. The expected cash flows will include cash flows from the sale of collateral held or 
           other credit enhancements that are integral to the contractual terms. 
 
           For credit exposures for which there has not been a significant increase in credit risk since 
           initial recognition, ECLs are provided for credit losses that result from default events that 
           are possible within the next 12 months (a 12-month ECL). For those credit exposures for which 
           there has been a significant increase in credit risk since initial recognition, a loss allowance 
           is required for credit losses expected over the remaining life of the exposure, irrespective 
           of the timing of the default (a lifetime ECL). 
  1.2.13  Inventories 
           Inventories, which include rough diamonds, ore stockpiles and consumables, are measured at 
           the lower of cost and net realisable value. The amount of any write-down of inventories to 
           net realisable value and all losses, is recognised in the period the write-down or loss occurs. 
           Cost is determined as the average cost of production, using the weighted average method. Cost 
           includes directly attributable mining overheads, but excludes borrowing costs. 
 
           Net realisable value is the estimated selling price in the ordinary course of business, less 
           the estimated costs of completion and the estimated costs to be incurred in marketing, selling 
           and distribution. 
  1.2.14  Cash and cash equivalents 
           Cash and cash equivalents are carried in the statement of financial position at amortised 
           cost. Cash and cash equivalents comprise cash on hand, deposits held at call with banks, and 
           other short-term, highly liquid investments with original maturities of three months or less. 
 
           For the purpose of the cash flow statement, cash and cash equivalents consist of cash and 
           cash equivalents as defined above, net of outstanding bank overdrafts. 
  1.2.15  Issued share capital 
           Ordinary shares are classified as equity. Incremental costs directly attributable to the issue 
           of new shares or options are shown in equity as a deduction from the proceeds. 
  1.2.16  Foreign currency translations 
           Presentation currency 
           The results and financial position of the Group's subsidiaries which have a functional currency 
           different from the presentation currency are translated into the presentation currency as 
           follows: 
            *    statement of financial position items are translated 
                 at the closing rate at the reporting date; 
 
 
            *    income and expenses for each statement of profit or 
                 loss are translated at average exchange rates (unless 
                 this average is not a reasonable approximation of the 
                 cumulative effect of the rates prevailing on the 
                 transaction dates, in which case income and expenses 
                 are translated at the dates of the transactions); and 
 
 
            *    resulting exchange differences are recognised as a 
                 separate component of equity. 
 
 
 
           Details of the rates applied at the respective reporting dates and for the statement of profit 
           or loss transactions are detailed in Note 17, Issued capital and reserves. 
 
           Transactions and balances 
           Foreign currency transactions are translated into the functional currency using the exchange 
           rates prevailing at the dates of the transactions. Foreign exchange gains or losses resulting 
           from the settlement of such transactions and from the translation at the period-end exchange 
           rates of monetary assets and liabilities denominated in foreign currencies are recognised 
           in the statement of profit or loss. Non-monetary items that are measured in terms of cost 
           in a foreign currency are translated using the exchange rates as at the dates of the initial 
           transactions. Non-monetary items measured at fair value in a foreign currency are translated 
           using the exchange rates at the date when the fair value was determined. Monetary items for 
           each statement of financial position presented are translated at the closing rate at the reporting 
           date. 
  1.2.17  Share-based payments 
           Employees (including Senior Executives) of the Group receive remuneration in the form of share-based 
           payment transactions, whereby employees render services as consideration for equity instruments 
           (equity-settled transactions). In situations where some or all of the goods or services received 
           by the entity as consideration for equity instruments cannot be specifically identified, they 
           are measured as the difference between the fair value of the share-based payment and the fair 
           value of any identifiable goods or services received at the grant date. 
 
           Equity-settled transactions 
           The cost of equity-settled transactions with employees is measured by reference to the fair 
           value at the date at which they are granted and is recognised as an expense over the vesting 
           period, which ends on the date on which the relevant employees become fully entitled to the 
           award. Fair value is determined using an appropriate pricing model. In valuing equity-settled 
           transactions, no account is taken of any vesting conditions, other than conditions linked 
           to the price of the shares of the Company (market conditions). 
 
           No expense is recognised for awards that do not ultimately vest, except for awards where vesting 
           is conditional upon a market condition, which are treated as vesting irrespective of whether 
           or not the market condition is satisfied, provided that all other performance conditions are 
           satisfied. 
 
           At each reporting date before vesting, the cumulative expense is calculated, representing 
           the extent to which the vesting period has expired and management's best estimate of the achievement 
           or otherwise of non-market conditions and of the number of equity instruments that will ultimately 
           vest or, in the case of an instrument subject to a market condition, be treated as vesting 
           as described above. The movement in cumulative expense since the previous reporting date is 
           recognised in the statement of profit or loss, with a corresponding entry in equity. 
 
           Where the terms of an equity-settled award are modified, or a new award is designated as replacing 
           a cancelled or settled award, the cost based on the original award terms continues to be recognised 
           over the original vesting period. In addition, an expense is recognised over the remainder 
           of the new vesting period for the incremental fair value of any modification, based on the 
           difference between the fair value of the original award and the fair value of the modified 
           award, both as measured on the date of the modification. No reduction is recognised if this 
           difference is negative, due to the fact that it would not be beneficial to the employees. 
 
           Where an equity-settled award is cancelled, it is treated as if it had vested on the date 
           of cancellation, and any cost not yet recognised in the statement of profit or loss for the 
           award is expensed immediately. Where an equity-settled award is forfeited, it is treated as 
           if vesting conditions had not been met and all costs previously recognised are reversed and 
           recognised in income immediately for the current year and through retained earnings for costs, 
           recognised in previous years. 
 
           Management applies judgement when determining whether share options relating to employees 
           who resigned before the end of the service condition period are cancelled or forfeited as 
           referred under Note 1.2.28, Critical accounting estimates and judgements. 
 
           The Group periodically releases the share-based equity reserve to retained earnings in relation 
           to lapsed, forfeited and exercised options. 
  1.2.18        Provisions 
                 Provisions are recognised when: 
                  *    the Group has a present legal or constructive 
                       obligation as a result of a past event; and 
 
 
                  *    a reliable estimate can be made of the obligation. 
 
 
 
                 Provisions are measured at the present value of the expenditures expected to be required to 
                 settle the obligation, using a pre-tax rate that reflects current market assessments of the 
                 time value of money and the risks specific to the obligation. The increase in the provision 
                 due to the passage of time is recognised as a finance cost. 
  1.2.19  Restoration and rehabilitation 
           The mining, extraction and processing activities of the Group normally give rise to obligations 
           for site restoration and rehabilitation. Rehabilitation works can include facility decommissioning 
           and dismantling, removal and treatment of waste materials, land rehabilitation, and site restoration. 
           The extent of the work required and the estimated cost of final rehabilitation, comprising 
           liabilities for decommissioning and restoration, are based on current legal requirements, 
           existing technology and the Group's environmental policies, and is reassessed annually. Cost 
           estimates are not reduced by the potential proceeds from the sale of property, plant and equipment. 
 
           Provisions for the cost of each restoration and rehabilitation program are recognised at the 
           time the environmental disturbance occurs. When the extent of the disturbance increases over 
           the life of the operation, the provision and associated asset is increased accordingly. Costs 
           included in the provision encompass all restoration and rehabilitation activity expected to 
           occur. The restoration and rehabilitation provisions are measured at the expected value of 
           future cash flows, discounted to their present value. Discount rates used are specific to 
           the country in which the operation is located. The value of the provision is progressively 
           increased over time as the effect of the discounting unwinds, which is recognised in finance 
           charges. Restoration and rehabilitation provisions are also adjusted for changes in estimates. 
 
           When provisions for restoration and rehabilitation are initially recognised, the corresponding 
           cost is capitalised as an asset where it gives rise to a future benefit and depreciated over 
           future production from the operation to which it relates. 
 
           Management is required to make significant estimates and assumptions when determining the 
           amount of the restoration and rehabilitation provisions as referred under Note 1.2.28, Critical 
           accounting estimates and judgements. 
  1.2.20  Taxation 
           Income tax for the period comprises current and deferred tax. Income tax is recognised in 
           the statement of profit or loss except to the extent that it relates to items charged or credited 
           directly to equity, in which case it is recognised in equity. Current tax expense is the expected 
           tax payable on the taxable income for the period, using tax rates enacted or substantively 
           enacted at the reporting date, and any adjustment to tax payable in respect of previous years. 
 
           Deferred tax is provided using the statement of financial position liability method, providing 
           for temporary differences between the carrying amounts of assets and liabilities for financial 
           reporting purposes and the amounts used for taxation purposes. 
 
           Deferred tax assets and liabilities are measured at the tax rates that are expected to apply 
           to the period when the asset is realised or the liability is settled based on the tax rates 
           (and tax laws) that have been enacted or substantively enacted at the reporting date. 
 
           A deferred tax asset is recognised only to the extent that it is probable that future taxable 
           profits will be available against which the asset can be utilised. Deferred tax assets are 
           reduced to the extent that it is no longer probable that the related tax benefit will be realised. 
 
           In respect of taxable temporary differences associated with investments in subsidiaries, associates 
           and jointly controlled entities, deferred tax is provided except where the timing of the reversal 
           of the temporary differences can be controlled by the Group and it is probable that the temporary 
           differences will not reverse in the foreseeable future. 
 
           In respect of deductible temporary differences associated with investments in subsidiaries, 
           associates and jointly controlled entities, deferred tax assets are only recognised to the 
           extent that it is probable that the temporary differences will reverse in the foreseeable 
           future and taxable profit will be available against which the temporary differences can be 
           utilised. Withholding tax is recognised in the statement of profit or loss when dividends 
           or other services which give rise to that withholding tax are declared or accrued respectively. 
           Withholding tax is disclosed as part of current tax. 
 
           Royalties 
           Royalties incurred by the Group comprise mineral extraction costs based on a percentage of 
           sales paid to the local revenue authorities. These obligations arising from royalty arrangements 
           are recognised as current payables and disclosed as part of royalty and selling costs in the 
           statement of profit or loss. 
 
           Royalties and revenue-based taxes are accounted for under IAS 12 when they have the characteristics 
           of an income tax. This is considered to be the case when they are imposed under government 
           authority and the amount payable is based on taxable income - rather than based on quantity 
           produced or as a percentage of revenue. For such arrangements, current and deferred tax is 
           provided on the same basis as described above for other forms of taxation. The royalties incurred 
           by the Group are considered not to meet the criteria to be treated as part of income tax. 
  1.2.21  Employee benefits 
           Provision is made in the financial statements for all short-term employee benefits. Liabilities 
           for wages and salaries, including non-monetary benefits, benefits required by legislation, 
           annual leave, retirement benefits and accumulating sick leave obliged to be settled within 
           12 months of the reporting date, are recognised in trade and other payables and are measured 
           at the amounts expected to be paid when the liabilities are settled. Benefits falling due 
           more than 12 months after the reporting date are discounted to present value. The Group recognises 
           an expense for contributions to the defined contribution pension fund in the period in which 
           the employees render the related service. 
 
           Bonus plans 
           The Group recognises a liability and an expense for bonuses. The Group recognises a liability 
           where contractually obliged or where there is a past practice that has created a constructive 
           obligation. These liabilities are recognised in trade and other payables and are measured 
           at the amounts expected to be paid when the liabilities are settled. 
  1.2.22  Leases 
           At inception, the Group assesses whether a contract is or contains a lease. This assessment 
           involves the exercise of judgement whether it depends on a specified asset, whether the Group 
           obtains substantially all the economic benefits from the use of that asset, and whether the 
           Group has the right to direct the use of the asset. For leases that contain one lease component 
           and one or more additional lease or non-lease components, the Group allocates the consideration 
           in the contract to each lease component on the basis of the relative stand-alone price of 
           the lease component and the aggregate stand-alone price of the non-lease components. 
 
           Right-of-use assets 
           The Group recognises right-of-use assets at the commencement date of the lease (ie, the date 
           the underlying asset is available for use). Right-of-use assets are measured at cost, less 
           any accumulated depreciation and impairment losses, and adjusted for any remeasurement of 
           lease liabilities. The cost of right-of-use assets includes the amount of lease liabilities 
           recognised, initial direct costs incurred, costs to dismantle, restore and remove the right-of-use 
           asset, and lease payments made at or before the commencement date less any lease incentives 
           received. After the commencement date, the right-of-use assets are measured using a cost model. 
           Unless the Group is reasonably certain to obtain ownership of the leased asset at the end 
           of the lease term, the recognised right-of-use assets are depreciated on a straight-line basis 
           over the shorter of its estimated useful life and the lease term. Right-of-use assets are 
           subject to impairment. 
 
           Lease liabilities 
           At the commencement date of the lease, the Group recognises lease liabilities measured at 
           the present value of lease payments to be made over the lease term. The lease payments include 
           fixed payments (including in-substance fixed payments) less any lease incentives receivable, 
           variable lease payments that depend on an index or a rate, and amounts expected to be paid 
           under residual value guarantees. The lease payments also include the exercise price of a purchase 
           option reasonably certain to be exercised by the Group and payments of penalties for terminating 
           a lease, if the lease term reflects the Group exercising the option to terminate. The variable 
           lease payments that do not depend on an index or a rate are recognised as an expense in the 
           period on which the event or condition that triggers the payment occurs. 
 
           In calculating the present value of lease payments, the Group uses the incremental borrowing 
           rate at the lease commencement date if the interest rate implicit in the lease is not readily 
           determinable. After the commencement date, the amount of lease liabilities is increased to 
           reflect the accretion of interest and reduced for the lease payments made. In addition, the 
           carrying amount of lease liabilities is remeasured if there is a modification to the terms 
           and conditions of the lease or if there a lease reassessment. 
 
           Short-term leases and leases of low-value assets 
           The Group applies the short-term lease recognition exemption to its short-term leases (ie, 
           those leases that have a lease term of 12 months or less from the commencement date and do 
           not contain a purchase option). It also applies the lease of low-value assets recognition 
           exemption to leases of office equipment that are considered to be of low value. Lease payments 
           on short-term leases and leases of low-value assets are recognised as expense on a straight-line 
           basis over the lease term. 
  1.2.23        Revenue from contracts with customers 
                Revenue comprises net invoiced diamond sales to customers excluding VAT. Diamond sales are 
                made through a competitive tender process and recognised when the Group's performance obligations 
                have been satisfied at the time the buyer obtains control of the diamond(s), at an amount 
                that the Group expects to be entitled in exchange for the diamond(s). Where the Group makes 
                rough diamond sales to customers and retains a right to an interest in their future sale as 
                polished diamonds, the Group records the sale of the rough diamonds but such contingent revenue 
                on the onward sale is only recognised at the date when the polished diamonds are sold. 
 
                The following revenue streams are recognised: 
                 *    rough diamonds which are sold through a competitive 
                      tender process, partnership agreements and joint 
                      operation arrangements; 
 
 
                 *    polished diamonds and other products which are sold 
                      through direct sales channels; 
 
 
                 *    additional uplift (on the value from rough to 
                      polished) on partnership arrangements; and 
 
 
                 *    additional uplift (on the value from rough to 
                      polished) on joint operation arrangements. 
 
 
 
                The sale of rough diamonds is the core business of the Group, with other revenue streams contributing 
                marginally to total revenue. 
 
                Revenue through joint operation arrangements is recognised for the sale of the rough diamond 
                according to each party's percentage entitlement as per the joint operation arrangement. Contractual 
                agreements are entered into between the Group and the joint operation partner whereby both 
                parties control jointly the cutting and polishing activities relating to the diamond. All 
                decisions pertaining to the cutting and polishing of the diamonds require unanimous consent 
                from both parties. Once these activities are complete, the polished diamond is sold, after 
                which the revenue on the remaining percentage of the rough diamond is recognised, together 
                with additional uplift on the joint operation arrangement. The Group portion of inventories 
                related to these transactions is included in the total inventories balance. 
 
                Revenue through partnership arrangements is recognised for the sale of the rough diamond, 
                with an additional uplift based on the polished margin achieved. Management recognises the 
                revenue on the sale of the rough diamond when it is sold to a third party, as there is no 
                continuing involvement by management in the cutting and polishing process and control has 
                passed to the third party. Revenue from additional uplift is considered to be a variable 
                consideration. 
                This variable consideration will generally be significantly constrained. This is on the basis 
                that the ultimate additional uplift received will depend on a range of factors that are highly 
                susceptible to factors outside the Group's influence. Management recognises revenue on the 
                additional uplift when the polished diamond is sold by the third party and the additional 
                uplift is guaranteed. 
 
                Rendering of service 
                Revenue from services relating to third-party diamond manufacturing is recognised in the accounting 
                period in which the services are rendered, when the Group's performance obligations have been 
                satisfied, at an amount that the Group expects to be entitled to in exchange for the services. 
 
                Contract assets 
                A contract asset is the right to consideration in exchange for goods or services transferred 
                to the customer. If the Group transfers goods or services to a customer before the customer 
                pays consideration or before payment is due, a contract asset is recognised for the earned 
                consideration that is conditional. The Group does not have any contract assets as performance 
                and a right to consideration occurs within a short period of time and all rights to consideration 
                are unconditional. 
 
                Contract liabilities 
                A contract liability is the obligation to transfer goods or services to a customer for which 
                the Group has received consideration (or an amount of consideration is due) from the customer. 
                If a customer pays consideration before the Group transfers goods or services to the customer, 
                a contract liability is recognised when the payment is made or the payment is due (whichever 
                is earlier). Contract liabilities are recognised as revenue when the Group performs under 
                the contract. The Group does not have any contract liabilities as the transfer of goods or 
                services performance occurs within a short period of time of receiving the consideration. 
  1.2.24  Interest income 
           Interest income is recognised on a time proportion basis using the effective interest rate 
           method. 
  1.2.25  Dividends 
           Dividends are recognised when the amount of the dividend can be reliably measured and the 
           Group's right to receive payment is established. 
  1.2.26  Finance costs 
           Finance costs are recognised on a time proportion basis using the effective interest rate 
           method. 
  1.2.27  Dividend distribution 
           Dividend distributions to the Group's shareholders are recognised as a liability in the Group's 
           financial statements in the period in which the dividends are approved by the Group's shareholders. 
 
 
  1.2.28  Critical accounting estimates and judgements 
           The preparation of the consolidated financial statements requires management to make estimates 
           and judgements and form assumptions that affect the reported amounts of the assets and liabilities, 
           the reported revenue and costs during the periods presented therein, and the disclosure of 
           contingent liabilities at the date of the financial statements. Estimates and judgements are 
           continually evaluated and are based on historical experience and other factors, including 
           expectations of future events that are believed to be reasonable under the circumstances. 
 
           The Group makes estimates and assumptions concerning the future and the resulting accounting 
           estimates will, by definition, seldom equal the related actual results. The estimates and 
           assumptions that have a significant risk of causing a material adjustment to the financial 
           results or the financial position reported in future periods are discussed below. 
 
           Estimates 
           Ore reserves and associated life of mine (LoM) 
           There are numerous uncertainties inherent in estimating ore reserves and the associated LoM. 
           Therefore, the Group must make a number of assumptions in making those estimations, including 
           assumptions as to the prices of diamonds, exchange rates, production costs and recovery rates. 
           Assumptions that are valid at the time of estimation may change significantly when new information 
           becomes available. Changes in the forecast prices of diamonds, exchange rates, production 
           costs or recovery rates may change the economic status of ore reserves and may, ultimately, 
           result in the ore reserves being restated. Where assumptions change the LoM estimates, the 
           associated depreciation rates, residual values, waste stripping and amortisation ratios, and 
           environmental provisions are reassessed to take into account the revised LoM estimate. Refer 
           Note 9, Property, plant and equipment. 
 
           Exploration and evaluation expenditure 
           This policy requires management to make certain estimates and assumptions as to future events 
           and circumstances, in particular whether economically viable extraction operations are viable 
           where reserves have been discovered and whether indications of impairment exist. Any such 
           estimates and assumptions may change as new information becomes available. Refer Note 9, Property, 
           plant and equipment. 
 
           Provision for restoration and rehabilitation 
           Significant estimates and assumptions are made in determining the amount of the restoration 
           and rehabilitation provisions. These deal with uncertainties such as changes to the legal 
           and regulatory framework, magnitude of possible contamination, and the timing, extent and 
           costs of required restoration and rehabilitation activity. Refer Note 22, Provisions, for 
           further detail. 
 
           Judgement 
           Impairment reviews 
           The Group determines if goodwill is impaired at least on an annual basis, while all other 
           significant operations are tested for impairment when there are potential indicators which 
           may require impairment review. This requires an estimation of the recoverable amount of the 
           relevant CGU under review. Recoverable amount is the higher of fair value less costs to sell 
           and value in use. While conducting an impairment review of its assets using value-in-use impairment 
           models, the Group exercises judgement in making assumptions about future rough diamond prices, 
           exchange rates, volumes of production, ore reserves and resources included in the current 
           LoM plans, production costs and macro-economic factors such as inflation and discount rates. 
           Changes in estimates used can result in significant changes to the consolidated statement 
           of profit or loss and consolidated statement of financial position. The results of the impairment 
           testing performed did not indicate any impairments in the current year. 
 
           The key assumptions used in the recoverable amount calculations, determined on a value-in-use 
           basis, are listed below: 
 
           Valuation basis 
           Discounted present value of future cash flows. 
 
           LoM and recoverable value of reserves and resources 
           Economically recoverable reserves and resources, carats recoverable and grades achievable 
           are based on management's expectations of the availability of reserves and resources at mine 
           sites and technical studies undertaken by in-house and third-party specialists. Reserves remaining 
           after the current LoM plan have not been included in determining the value in use of the operations. 
 
           Cost and inflation rate 
           Operating costs for Letšeng are determined based on management's experience and the use 
           of contractors over a period of time whose costs are fairly reasonably determinable. Mining 
           and processing costs in the short to medium term have been based on the agreements with the 
           relevant contractors. In the longer term, management has applied local inflation rates of 
           4% to 6% for operating costs in addition to a depth escalation factor for mining costs as 
           a result of mining in deeper areas within both pits. 
 
           Capital costs in the short-term has been based on management's capital program after which 
           a fixed percentage of operating costs have been applied to determine the capital costs necessary 
           to maintain current levels of operations. 
 
           Exchange rates 
           Exchange rates are estimated based on an assessment at current market fundamentals and long-term 
           expectations. The US dollar/Lesotho loti (LSL) exchange rate used was determined with reference 
           to the closing rate at 31 December 2019 of LSL13.98. 
 
           Diamond prices 
           The diamond prices used in the impairment test have been set with reference to recent prices 
           achieved, recent market trends and the Group's medium-term forecast. Long-term diamond price 
           escalation reflects the Group's assessment of market supply/demand fundamentals. 
 
           Discount rate 
           The discount rate of 11.2% for revenue (2018: 12.2%) and 14.7% for costs (2018: 15.8%) used 
           for Letšeng represents the before-tax risk-free rate adjusted for market risk, volatility 
           and risks specific to the asset and its operating jurisdiction. 
 
           Market capitalisation 
           In the instance where the Group's asset carrying values exceed market capitalisation, this 
           results in an indicator of impairment. The Group believes that this position does not represent 
           an impairment as all significant operations were assessed for impairment during the year and 
           no impairments were recognised. 
 
           Sensitivity 
           The value in use for Letšeng indicated sufficient headroom, and no reasonable change 
           in the key assumptions will result in an impairment. Refer Note 12, Impairment testing, for 
           further detail. 
 
           Capitalised stripping costs (deferred waste) 
           Waste removal costs (stripping costs) are incurred during the development and production phases 
           at surface mining operations. Furthermore, during the production phase, stripping costs are 
           incurred in the production of inventory as well as in the creation of future benefits by improving 
           access and mining flexibility in respect of the ore to be mined, the latter being referred 
           to as a 'stripping activity asset'. Judgement is required to distinguish between these two 
           activities at Letšeng. The orebody needs to be identified in its various separately identifiable 
           components. An identifiable component is a specific volume of the orebody that is made more 
           accessible by the stripping activity. Judgement is required to identify and define these components 
           (referred to as 'cuts'), and also to determine the expected volumes (tonnes) of waste to be 
           stripped and ore to be mined in each of these components. These assessments are based on a 
           combination of information available in the mine plans, specific characteristics of the orebody 
           and the milestones relating to major capital investment decisions. 
 
           Judgement is also required to identify a suitable production measure that can be applied in 
           the calculation and allocation of production stripping costs between inventory and the stripping 
           activity asset. The ratio of expected volume (tonnes) of waste to be stripped for an expected 
           volume (tonnes) of ore to be mined for a specific component of the orebody, compared to the 
           current period ratio of actual volume (tonnes) of waste to the volume (tonnes) of ore is considered 
           to determine the most suitable production measure. 
 
           These judgements and estimates are used to calculate and allocate the production stripping 
           costs to inventory and/or the stripping activity asset(s). Furthermore, judgements and estimates 
           are also used to apply the stripping ratio calculation in determining the amortisation of 
           the stripping activity asset. Refer Note 9, Property, plant and equipment, for further detail. 
 
           Share-based payments 
           Judgement is applied by management in determining whether the share options relating to employees 
           who resigned before the end of the service condition period have been cancelled or forfeited 
           in light of their leaving status. Where employees do not meet the requirements of a good leaver 
           as per the rules of the long-term incentive plan (LTIP), no award will vest and this will 
           be treated as cancellation by forfeiture. The expenses relating to these charges previously 
           recognised are then reversed. Where employees do meet the requirements of a good leaver as 
           per the rules of the LTIP, some or all of an award will vest and this will be treated as a 
           modification to the original award. The future expenses relating to these awards are accelerated 
           and recognised as an expense immediately. Refer Note 28, Share-based payments, for further 
           detail. 
 
           Identifying uncertainties over tax treatments 
           In December 2019, an amended tax assessment was issued to Letšeng by the Lesotho Revenue 
           Authority (LRA), contradicting the application of certain tax treatments in the current Income 
           Tax Act. 
 
           Management do not believe an uncertain tax position exists as: 
            *    there is no ambiguity in the application of the 
                 Lesotho Income Tax Act; 
 
 
            *    there has been no change in the application of the 
                 Income Tax Act and resulting tax; and 
 
 
            *    senior counsel advice, which is legally privileged, 
                 has been obtained and reflects good prospects of 
                 success in setting aside the amended tax assessment. 
 
 
 
           Management has lodged a formal Objection to the amended tax assessment, which Objection is 
           supported by the opinion of senior counsel. The LRA applies a "pay now argue later" principle, 
           the application of which is subject to the discretion of the Commissioner General. An application 
           for the suspension of any payment has been made to the Commissioner General together with 
           the Objection. No provision or contingent liability, relating to the amended tax assessment 
           in question, is therefore required to be raised in the 2019 Annual Financial Statements. 
          Equipment and service lease 
           The major components of Letšeng's ore-extraction mining activities are outsourced to 
           a mining contractor. The mining contractor performs these functions using their own equipment. 
           Management applied judgement when evaluating whether the contract between Letšeng and 
           the mining contractor contained a lease. While it was concluded there was a lease, lease payments 
           are variable in nature as the lease payment vary based on the tonnes of ore and waste mined 
           and hence no right-of-use asset or liability could be measured. The lease payment is therefore 
           expensed in the statement of profit or loss. Refer Note 25, Commitments and contingencies. 
          ------------------------------------------------------------------------------------------------------ 
 
 
                                                                                                       2019      2018* 
                                                                                                    US$'000    US$'000 
     -------------------------------------------------------------------------------------------  ---------  --------- 
2.   REVENUE FROM CONTRACTS WITH CUSTOMERS 
 Sale of goods                                                                                      182 046    266 822 
 Rendering of services                                                                                    1        468 
 -----------------------------------------------------------------------------------------------  ---------  --------- 
                                                                                                    182 047    267 290 
 -----------------------------------------------------------------------------------------------  ---------  --------- 
     The revenue from the sale of goods represents the sale of rough diamonds, for which revenue 
     is recognised at the point in time at which control transfers. The revenue from the 
     rendering 
     of services mainly represents the services rendered on third-party diamond analysis and 
     manufacturing, 
     for which the revenue is recognised over time as the services are rendered. 
 
     No revenue was generated from joint operation or partnership arrangements during the 
     current 
     year (2018: Nil). 
     -------------------------------------------------------------------------------------------  ---------  --------- 
 
3.   OTHER OPERATING INCOME 
 Sundry income                                                                                           90        300 
 Sundry expenses                                                                                        (7)      (521) 
 Profit on disposal and scrapping of property, plant and equipment                                      762        695 
 -----------------------------------------------------------------------------------------------  ---------  --------- 
                                                                                                        845        474 
 -----------------------------------------------------------------------------------------------  ---------  --------- 
4.   OPERATING PROFIT 
     Operating profit includes the following: 
     Depreciation and amortisation 
 Depreciation and amortisation excluding waste stripping costs                                     (12 400)    (8 605) 
 Depreciation of right-of-use assets                                                                (2 526)          - 
 Waste stripping costs amortised                                                                   (43 129)   (68 205) 
 -----------------------------------------------------------------------------------------------  ---------  --------- 
                                                                                                   (58 055)   (76 810) 
 (Less): Depreciation and mining asset amortisation capitalised to inventory                          (151)       (51) 
 -----------------------------------------------------------------------------------------------  ---------  --------- 
                                                                                                   (58 206)   (76 861) 
 -----------------------------------------------------------------------------------------------  ---------  --------- 
     Inventories 
 Cost of inventories recognised as an expense                                                     (114 678)  (146 397) 
 -----------------------------------------------------------------------------------------------  ---------  --------- 
     Foreign exchange gain 
 Foreign exchange gain                                                                                3 550      2 200 
 -----------------------------------------------------------------------------------------------  ---------  --------- 
     Lease expenses not included in lease liability 
 Mine site property                                                                                   (146)      (131) 
 Equipment and service lease                                                                       (61 658)   (68 174) 
 Contingent rental - Alluvial Ventures                                                              (9 472)   (11 924) 
 Leased premises                                                                                      (152)    (1 807) 
 -----------------------------------------------------------------------------------------------  ---------  --------- 
                                                                                                   (71 428)   (82 036) 
 -----------------------------------------------------------------------------------------------  ---------  --------- 
     Auditor's remuneration - EY 
 Group financial statements                                                                           (296)      (279) 
 Statutory                                                                                            (172)      (153) 
 Other audit-related services(1)                                                                          -      (106) 
 -----------------------------------------------------------------------------------------------  ---------  --------- 
                                                                                                      (468)      (538) 
 -----------------------------------------------------------------------------------------------  ---------  --------- 
     Auditor's remuneration - other audit firms 
 Statutory                                                                                             (17)       (20) 
 -----------------------------------------------------------------------------------------------  ---------  --------- 
     Other non-audit fees - EY 
 Tax compliance                                                                                        (34)        (8) 
 Tax services advisory and consultancy                                                                  (9)       (12) 
 Other services(2)                                                                                     (15)        (3) 
 -----------------------------------------------------------------------------------------------  ---------  --------- 
                                                                                                       (58)       (23) 
 -----------------------------------------------------------------------------------------------  ---------  --------- 
     Other non-audit fees - other audit firms 
 Internal audit                                                                                         (2)        (1) 
 -----------------------------------------------------------------------------------------------  ---------  --------- 
     Employee benefits expense 
 Salaries and wages(3)                                                                             (22 088)   (20 123) 
 -----------------------------------------------------------------------------------------------  ---------  --------- 
     Underlying earnings before interest, tax, depreciation and mining asset amortisation 
     (underlying 
     EBITDA) before discontinued operation 
     Underlying EBITDA is shown, as the Directors consider this measure to be a relevant guide 
     to the operational performance of the Group and excludes such non-operating costs as listed 
     below. The reconciliation from operating profit to underlying EBITDA is as follows: 
 Operating profit                                                                                    29 858     80 365 
 Other operating income                                                                               (845)      (474) 
 Foreign exchange gain                                                                              (3 550)    (2 200) 
 Share-based payments                                                                                   784      1 422 
 Depreciation and amortisation (excluding waste stripping cost amortised)                            14 752      8 567 
 Underlying EBITDA before discontinued operation                                                     40 999     87 680 
 -----------------------------------------------------------------------------------------------  ---------  --------- 
 (*) Prior period figures have been restated for the reclassification impact of accounting 
  for the discontinued operation (refer Note 16, Assets held for sale). 
  (1) Other audit-related services by EY relate to the interim review on the half year results 
  for the six months ended 30 June 2018. No interim review was performed on the 2019 half year 
  results. 
  (2) Includes services related to the sale of assets. 
  (3) Includes contributions to defined contribution plan of US$0.5 million (31 December 2018: 
  US$0.5 million). An average of 425 employees excluding contractors were employed during the 
  period (2018: 401). 
 --------------------------------------------------------------------------------------------------------------------- 
 
5.   RECLASSIFICATION OF FOREIGN CURRENCY TRANSLATION RESERVE 
      During the year the Group abandoned Gem Diamonds Marketing Botswana (Proprietary) Limited, 
      the sales and marketing office for Ghaghoo's diamonds and Gem Diamonds Technology DMCC, which 
      owned an investment property in Dubai that was sold at the end of the prior year. As the operations 
      are being closed and not sold the closure has been classified as an abandonment, which has 
      resulted in the recycling of the foreign currency translation reserve. There was no profit 
      or loss on the abandonment. 
     ----------------------------------------------------------------------------------------------------------------- 
 
 
                                                                                      2019     2018* 
                                                                                   US$'000   US$'000 
     ---------------------------------------------------------------------------  --------  -------- 
6.   NET FINANCE COSTS 
     Finance income 
 Bank deposits                                                                         668     2 031 
 Other                                                                                   -         1 
 -------------------------------------------------------------------------------  --------  -------- 
 Total finance income                                                                  668     2 032 
 -------------------------------------------------------------------------------  --------  -------- 
     Finance costs 
 Bank overdraft                                                                      (459)   (1 887) 
 Finance costs on borrowings                                                       (3 981)     (916) 
 Finance costs on lease liabilities                                                (1 087)         - 
 Finance costs on unwinding of rehabilitation and decommissioning provision          (949)     (887) 
 -------------------------------------------------------------------------------  --------  -------- 
 Total finance costs                                                               (6 476)   (3 690) 
 -------------------------------------------------------------------------------  --------  -------- 
                                                                                   (5 808)   (1 658) 
 -------------------------------------------------------------------------------  --------  -------- 
 
 
7.   INCOME TAX 
     Income tax expense 
     Current 
 - Overseas                                                                           (1 805)      (16 147) 
     Withholding tax 
 - Overseas                                                                             (143)       (4 984) 
     Deferred 
 - Overseas                                                                           (7 072)       (5 217) 
 --------------------------------------------------------------------------------  ----------  ------------ 
                                                                                      (9 020)      (26 348) 
 --------------------------------------------------------------------------------  ----------  ------------ 
 Profit before taxation from continuing operations                                     24 050        78 707 
 --------------------------------------------------------------------------------  ----------  ------------ 
 
                                                                                            %% 
     ----------------------------------------------------------------------------  ---------- ----------- 
     Reconciliation of tax rate 
 Applicable income tax rate                                                              25.0          25.0 
 Permanent differences                                                                    0.8           1.1 
 Unrecognised deferred tax assets                                                         7.9           1.9 
 Effect of overseas tax at different rates                                                3.2           1.3 
 Withholding tax                                                                          0.6           6.8 
 --------------------------------------------------------------------------------  ----------  ------------ 
 Effective income tax rate                                                               37.5          36.1 
 --------------------------------------------------------------------------------  ----------  ------------ 
 The tax rate reconciles to the statutory Lesotho corporation tax rate of 25.0% rather than 
  the statutory UK corporation tax rate of 19.0% as this is the jurisdiction in which the majority 
  of the Group's taxes are incurred. 
 ---------------------------------------------------------------------------------------------------------- 
 (*) Prior period figures have been restated for the reclassification impact of accounting 
  for the discontinued operation (refer Note 16, Assets held for sale). 
 
 
                                                                                                      2019        2018 
                                                                                                   US$'000     US$'000 
     -----------------------------------------------------------------------------------------  ----------  ---------- 
8.   EARNINGS PER SHARE 
     The following reflects the income and share data used in the basic and diluted earnings 
     per 
     share computations: 
 Profit for the year:                                                                               10 576      46 641 
                                                                                                ----------  ---------- 
 Continuing operations                                                                              15 030      52 880 
 Discontinued operation                                                                            (4 454)     (6 239) 
                                                                                                ----------  ---------- 
 Less: Non-controlling interests                                                                   (7 959)    (20 624) 
 ---------------------------------------------------------------------------------------------  ----------  ---------- 
 Net profit attributable to ordinary equity holders of the parent for basic and diluted 
  earnings                                                                                           2 617      26 017 
 ---------------------------------------------------------------------------------------------  ----------  ---------- 
 Weighted average number of ordinary shares outstanding during the year ('000)                     138 964     138 731 
 ---------------------------------------------------------------------------------------------  ----------  ---------- 
     Earnings per share are calculated by dividing the net profit attributable to ordinary equity 
      holders of the parent by the weighted average number of ordinary shares outstanding during 
      the year. 
 
      Diluted earnings per share are calculated by dividing the net profit attributable to ordinary 
      equity holders of the parent by the weighted average number of ordinary shares outstanding 
      during the year after taking into account future potential conversion and issue rights associated 
      with the ordinary shares. 
 
                                                                                                      2019        2018 
                                                                                                 Number of   Number of 
                                                                                                    shares      shares 
     -----------------------------------------------------------------------------------------  ----------  ---------- 
 Weighted average number of ordinary shares outstanding during the year                            138 964     138 731 
     Effect of dilution: 
 - Future share awards under the Employee Share Option Plan                                          2 640       3 265 
 ---------------------------------------------------------------------------------------------  ----------  ---------- 
 Weighted average number of ordinary shares outstanding during the year adjusted for the 
  effect 
  of dilution                                                                                      141 604     141 996 
 ---------------------------------------------------------------------------------------------  ----------  ---------- 
 There have been no other transactions involving ordinary shares or potential ordinary shares 
  between the reporting date and the date of completion of these financial statements. 
 --------------------------------------------------------------------------------------------------------------------- 
 
 
9.   PROPERTY, PLANT AND EQUIPMENT 
                                                      Exploration 
                                                              and       De-    Lease- 
                                  Stripping              develop-   commis-      hold 
                                   activity   Mining         ment   sioning  improve-  Plant and      Other 
                                      asset    asset       assets    assets      ment  equipment  assets(1)      Total 
                                    US$'000  US$'000      US$'000   US$'000   US$'000    US$'000    US$'000    US$'000 
     ---------------------------  ---------  -------  -----------  --------  --------  ---------  ---------  --------- 
     As at 31 December 2019 
     Cost 
 Balance at 1 January 2019          473 395  117 913      148 890     5 494    55 197     95 365     19 899    916 153 
 Additions                           73 175      434            -         -        19      8 727        506     82 861 
 Net movement in rehabilitation 
  provision                               -        -            -       157         -          -          -        157 
 Disposals                                -        -            -         -         -      (292)      (343)      (635) 
 Reclassifications                        -    2 634            -         -     8 085   (11 328)        609          - 
 Assets held for sale (Note 16)           -        -    (141 531)         -   (6 821)   (10 195)   (14 683)  (173 230) 
 Foreign exchange differences        16 013    1 080        2 021       171     1 739      2 480      1 011     24 515 
 -------------------------------  ---------  -------  -----------  --------  --------  ---------  ---------  --------- 
 Balance at 31 December 2019        562 583  122 061        9 380     5 822    58 219     84 757      6 999    849 821 
 -------------------------------  ---------  -------  -----------  --------  --------  ---------  ---------  --------- 
     Accumulated 
     depreciation/amortisation/ 
     impairment 
 Balance at 1 January 2019          316 412   51 652      147 441     3 669    24 639     64 233     18 467    626 513 
 Charge for the year                 43 129    1 963            -       310     5 279      4 223        625     55 529 
 Disposals                                -        -            -         -         -          -      (320)      (320) 
 Assets held for sale (Note 16)           -        -    (139 962)         -   (6 821)   (10 195)   (14 683)  (171 661) 
 Foreign exchange differences         9 847      321        2 000       123       768      1 867        981     15 907 
 -------------------------------  ---------  -------  -----------  --------  --------  ---------  ---------  --------- 
 Balance at 31 December 2019        369 388   53 936        9 380     4 102    23 901     60 128      5 133    525 968 
 -------------------------------  ---------  -------  -----------  --------  --------  ---------  ---------  --------- 
 Net book value at 31 December 
  2019                              193 195   68 125            -     1 720    34 318     24 629      1 866    323 853 
 -------------------------------  ---------  -------  -----------  --------  --------  ---------  ---------  --------- 
 (1) Other assets comprise motor vehicles, computer equipment, furniture and fittings, and 
  office equipment. 
 
 
                                                Exploration 
                                                        and       De-  Lease- (1) 
                           Stripping               develop-   commis-        hold 
                            activity    Mining         ment   sioning    improve-   Plant and       Other 
                               asset     asset       assets    assets        ment   equipment   assets(2)      Total 
                             US$'000   US$'000      US$'000   US$'000     US$'000     US$'000     US$'000    US$'000 
 ------------------------  ---------  --------  -----------  --------  ----------  ----------  ----------  --------- 
 As at 31 December 2018 
 Cost 
 Balance at 1 January 
  2018                       465 206   124 013      161 733     4 347      42 307     108 165      24 373    930 144 
 Additions                    79 294       220            -         -          23      22 530         171    102 238 
 Net movement in 
  rehabilitation 
  provision                        -         -            -     1 944           -           -           -      1 944 
 Disposals                         -         -         (44)         -         (3)           -       (411)      (458) 
 Reclassifications                 -         -            -         -      19 846    (20 282)         436          - 
 Assets held for sale 
  (Note 16)                        -         -            -         -           -           -     (2 124)    (2 124) 
 Foreign exchange 
  differences               (71 105)   (6 320)     (12 799)     (797)     (6 976)    (15 048)     (2 546)  (115 591) 
 ------------------------  ---------  --------  -----------  --------  ----------  ----------  ----------  --------- 
 Balance at 31 December 
  2018                       473 395   117 913      148 890     5 494      55 197      95 365      19 899    916 153 
 ------------------------  ---------  --------  -----------  --------  ----------  ----------  ----------  --------- 
 Accumulated 
 depreciation/ 
 amortisation/impairment 
 Balance at 1 January 
  2018                       291 536    51 084      160 107     4 302      24 928      71 293      21 352    624 602 
 Charge for the year          68 205     2 056            -         4       2 937       2 674         977     76 853 
 Disposals                         -         -            -         -         (1)           -       (370)      (371) 
 Assets held for sale 
  (Note 16)                        -         -            -         -           -           -     (1 267)    (1 267) 
 Foreign exchange 
  differences               (43 329)   (1 488)     (12 666)     (637)     (3 225)     (9 734)     (2 225)   (73 304) 
 ------------------------  ---------  --------  -----------  --------  ----------  ----------  ----------  --------- 
 Balance at 31 December 
  2018                       316 412    51 652      147 441     3 669      24 639      64 233      18 467    626 513 
 Net book value at 
  31 December 2018           156 983    66 261        1 449     1 825      30 558      31 132       1 432    289 640 
 ------------------------  ---------  --------  -----------  --------  ----------  ----------  ----------  --------- 
 (1) Borrowing costs of US$1.6 million incurred in respect of the LSL215.0 million facility 
  at Letšeng (refer Note 18, Interest-bearing loans and borrowings) were capitalised to 
  the leasehold improvements. The weighted average capitalisation rate used to determine the 
  amount of borrowing costs eligible for capitalisation was 10.49% 
  (2) Other assets comprise motor vehicles, computer equipment, furniture and fittings, and 
  office equipment. 
 ------------------------------------------------------------------------------------------------------------------- 
 
 
                                                                          Right-of-use assets 
                                                       --------------------------------------------------------- 
                                                             Plant and          Motor 
                                                             equipment       vehicles     Buildings        Total 
                                                               US$'000        US$'000       US$'000      US$'000 
      -----------------------------------------------  ---------------  -------------  ------------  ----------- 
10.   RIGHT-OF-USE ASSETS 
 As at 1 January 2019                                            1 350          1 620         6 642        9 612 
 Additions                                                         616              -           540        1 156 
 Depreciation charge for the year                                (977)          (360)       (1 189)      (2 526) 
 Foreign exchange differences                                       43             35           134          212 
 ----------------------------------------------------  ---------------  -------------  ------------  ----------- 
 As at 31 December 2019                                          1 032          1 295         6 127        8 454 
 ----------------------------------------------------  ---------------  -------------  ------------  ----------- 
 Right-of-use assets is a new category of assets that was recognised on adoption of IFRS 16 
  Leases. Refer Note 1.2.1, Changes in accounting policy. 
 
  Plant and equipment mainly comprise back-up power generating equipment utilised at Letšeng. 
  Motor vehicles mainly comprise vehicles utilised by contractors at Letšeng. Buildings 
  comprise office buildings in Maseru, Antwerp, London and Johannesburg. 
 
  During the year the Group recognised income from sub-leasing of office buildings in Maseru 
  of US$0.6 million. 
 
  Right-of-use assets are depreciated on a straight-line basis over the shorter of its estimated 
  useful life and the lease term. 
 --------------------------------------------------------------------------------------------------------------- 
 
 
                                                             Intangibles      Goodwill(*)        Total 
                                                                 US$'000          US$'000      US$'000 
      -------------------------------------------------  ---------------  ---------------  ----------- 
11.   INTANGIBLE ASSETS 
      As at 31 December 2019 
      Cost 
 Balance at 1 January 2019                                           791           13 272       14 063 
 Foreign exchange difference                                           -              381          381 
 ------------------------------------------------------  ---------------  ---------------  ----------- 
 Balance at 31 December 2019                                         791           13 653       14 444 
 ------------------------------------------------------  ---------------  ---------------  ----------- 
      Accumulated amortisation 
 Balance at 1 January 2019                                           791                -          791 
      Amortisation                                                     -                -            - 
      -------------------------------------------------  ---------------  ---------------  ----------- 
 Balance at 31 December 2019                                         791                -          791 
 ------------------------------------------------------  ---------------  ---------------  ----------- 
 Net book value at 31 December 2019                                    -           13 653       13 653 
 ------------------------------------------------------  ---------------  ---------------  ----------- 
      As at 31 December 2018 
      Cost 
 Balance at 1 January 2018                                           791           15 422       16 213 
 Foreign exchange difference                                           -          (2 150)      (2 150) 
 ------------------------------------------------------  ---------------  ---------------  ----------- 
 Balance at 31 December 2018                                         791           13 272       14 063 
 ------------------------------------------------------  ---------------  ---------------  ----------- 
      Accumulated amortisation 
 Balance at 1 January 2018                                           791                -          791 
      Amortisation                                                     -                -            - 
      -------------------------------------------------  ---------------  ---------------  ----------- 
 Balance at 31 December 2018                                         791                -          791 
 ------------------------------------------------------  ---------------  ---------------  ----------- 
 Net book value at 31 December 2018                                    -           13 272       13 272 
 ------------------------------------------------------  ---------------  ---------------  ----------- 
 (*) Goodwill allocated to Letšeng Diamonds. Refer Note 12, Impairment for impairment 
  testing. 
 
 
                                                                                                        2019      2018 
                                                                                                     US$'000   US$'000 
      --------------------------------------------------------------------------------------------  --------  -------- 
12.   IMPAIRMENT TESTING 
      Impairment testing 
      Goodwill impairment testing is undertaken on Letšeng Diamonds annually and when there 
      are indications of impairment. The most recent test was undertaken at 31 December 2019. In 
      assessing whether goodwill has been impaired, the carrying amount of Letšeng Diamonds 
      is compared with its recoverable amount. For the purpose of goodwill impairment testing in 
      2019, the recoverable amount for Letšeng Diamonds has been determined based on a 
      value-in-use 
      model, similar to that adopted in the past. 
      Goodwill 
 Letšeng Diamonds                                                                                13 653    13 272 
 -------------------------------------------------------------------------------------------------  --------  -------- 
 Balance at end of year                                                                               13 653    13 272 
 -------------------------------------------------------------------------------------------------  --------  -------- 
 Movement in goodwill relates to foreign exchange translation from functional to presentation 
  currency. 
 
  The discount rate is outlined below and represents the nominal pre-tax rate. This rate is 
  based on the weighted average cost of capital (WACC) of the Group and adjusted accordingly 
  at a risk premium for Letšeng Diamonds, taking into account risks associated therein. 
 
 
                                                                                              2019      2018 
                                                                                                 %         % 
    -----------------------------------------------------------------------------------  ---------  -------- 
    Discount rate - Letšeng Diamonds 
 Applied to revenue                                                                           11.2      12.2 
 Applied to costs                                                                             14.7      15.8 
 --------------------------------------------------------------------------------------  ---------  -------- 
 Value in use 
  Cash flows are projected for a period up to the date that the open pit mining is expected 
  to cease in 2036. This is based on the latest available mine plan and is shorter than the 
  mining lease period. During the year, the Letšeng mining lease was extended for 10 years, 
  expiring on 2 October 2029, with an exclusive option to renew for a further 10 years to 2039. 
  This mine plan takes into account the available reserves and other relevant inputs such as 
  diamond pricing, costs and geotechnical parameters. 
 
  Sensitivity to changes in assumptions 
  It was assessed that no reasonable possible change in any of the key assumptions would cause 
  Letšeng's carrying amount to exceed its recoverable amount. 
 
  The Group will continue to test its assets for impairment where indications are identified. 
 
  Refer Note 1.2.28, Critical accounting estimates and judgements, for further details on impairment 
  testing policies. 
 ----------------------------------------------------------------------------------------------------------- 
 
 
                                                                                          2019        2018 
                                                                                       US$'000     US$'000 
      ---------------------------------------------------------------------------  -----------  ---------- 
13.   RECEIVABLES AND OTHER ASSETS 
      Non-current 
 Prepayments(1)                                                                              -         347 
 --------------------------------------------------------------------------------  -----------  ---------- 
      Current 
 Trade receivables                                                                          89         184 
 Prepayments(1)                                                                          1 087       1 038 
 Deposits                                                                                   94          97 
 Other receivables                                                                         797         329 
 VAT receivable                                                                          4 270       3 785 
 --------------------------------------------------------------------------------  -----------  ---------- 
                                                                                         6 337       5 433 
 --------------------------------------------------------------------------------  -----------  ---------- 
      The carrying amounts above approximate their fair value. 
      Terms and conditions of the receivables: 
      Analysis of trade receivables 
 Neither past due nor impaired                                                              39         135 
      Past due but not impaired: 
 Less than 30 days                                                                          50          49 
      30 to 60 days                                                                          -           - 
      60 to 90 days                                                                          -           - 
      90 to 120 days                                                                         -           - 
      ---------------------------------------------------------------------------  -----------  ---------- 
                                                                                            89         184 
 --------------------------------------------------------------------------------  -----------  ---------- 
      (1) Included in current prepayments are facility restructuring costs of US$0.4 million (2018: 
       non-current US$0.3, current US$0.4). 
 
        Based on the nature of the Group's client base, the expected credit loss has no impact on 
        the Group. 
      ---------------------------------------------------------------------------------------------------- 
 
                                                                                          2019        2018 
                                                                                       US$'000     US$'000 
      ---------------------------------------------------------------------------  -----------  ---------- 
14.   INVENTORIES 
 Diamonds on hand                                                                       21 743      18 531 
 Ore stockpiles                                                                          1 816       2 585 
 Consumable stores                                                                       8 958      11 968 
 --------------------------------------------------------------------------------  -----------  ---------- 
                                                                                        32 517      33 084 
 --------------------------------------------------------------------------------  -----------  ---------- 
 Inventory is carried at the lower of cost or net realisable value. During the year a write-down 
  to net realisable value adjustment of US$1.1 million was recorded. 
 --------------------------------------------------------------------------------------------------------- 
 
 
                                                                                                    2019        2018 
                                                                                                 US$'000     US$'000 
      --------------------------------------------------------------------------------------  ----------  ---------- 
15.   CASH AND SHORT-TERM DEPOSITS 
 Cash on hand                                                                                          1           1 
 Bank balances                                                                                    10 971      16 093 
 Short-term bank deposit                                                                             331      34 718 
 -------------------------------------------------------------------------------------------  ----------  ---------- 
                                                                                                  11 303      50 812 
 -------------------------------------------------------------------------------------------  ----------  ---------- 
 
      The amounts reflected in the financial statements approximate fair value. 
 
       Cash at banks earn interest at floating rates based on daily bank deposit rates. Short-term 
       deposits are generally call deposit accounts and earn interest at the respective short-term 
       deposit rates. 
 
       At 31 December 2019, the Group had restricted cash of US$0.1 million (31 December 2018: US$0.2 
       million). The Group's cash surpluses are deposited with major financial institutions of high-quality 
       credit standing predominantly within Lesotho and the United Kingdom. 
 
       At 31 December 2019, the Group had US$69.9 million (31 December 2018: US$57.8 million) of 
       undrawn facilities, representing the LSL500.0 million (US$35.8 million) three-year unsecured 
       revolving working capital facility at Letšeng, the Letšeng ZAR100.0 million (US$7.2 
       million) working capital facility and US$27.0 million from Tranche 2 of the Company's US$45.0 
       million three-and-a-half-year unsecured revolving credit facility. 
 
       For further details on these facilities, refer Note 18, Interest-bearing loans and borrowings. 
 
                                                                                                    2019        2018 
                                                                                                 US$'000     US$'000 
      --------------------------------------------------------------------------------------  ----------  ---------- 
16.   ASSETS HELD FOR SALE 
 Property, plant and equipment                                                                         -      859(1) 
 Discontinued operation assets                                                                     3 943           - 
 -------------------------------------------------------------------------------------------  ----------  ---------- 
                                                                                                   3 943         859 
 -------------------------------------------------------------------------------------------  ----------  ---------- 
      (1) On 30 January 2019, the aircraft which serviced the Letšeng mine was sold for US$2.1 
       million. This was disclosed as an asset held for sale at 31 December 2018. 
 
       The non-recurring fair value measurement is included in level 3 of the fair value hierarchy. 
       The fair value is based on the purchase price of the transaction. 
 
       Discontinued operation held for sale 
       The Ghaghoo mine was placed on care and maintenance on 31 March 2017. In June 2019 the Company 
       entered into a binding agreement for the sale of 100% of the share capital of Gem Diamonds 
       Botswana Proprietary Limited, which owns the Ghaghoo Diamond Mine, for US$5.4 million. The 
       sale, subject to regulatory approvals in Botswana and other conditions precedent, is expected 
       to be concluded in 2020. The assets held for sale are carried at carrying value which is lower 
       than fair value less costs to sell. The trading results of the operation have been classified 
       as a discontinued operation held for sale and are presented as follows: 
 
                                                                                                    2019        2018 
                                                                                                 US$'000     US$'000 
      --------------------------------------------------------------------------------------  ----------  ---------- 
      Gross profit                                                                                     -           - 
 Other operating costs                                                                           (4 389)     (5 519) 
 Share-based payments                                                                               (10)        (15) 
 Foreign exchange gain                                                                               125           6 
 -------------------------------------------------------------------------------------------  ----------  ---------- 
 Operating loss                                                                                  (4 274)     (5 528) 
 Net finance costs                                                                                 (180)       (190) 
 -------------------------------------------------------------------------------------------  ----------  ---------- 
 Loss before tax from discontinued operation                                                     (4 454)     (5 718) 
      Income tax expense                                                                               -           - 
      --------------------------------------------------------------------------------------  ----------  ---------- 
 Loss after tax from discontinued operation                                                      (4 454)     (5 718) 
 -------------------------------------------------------------------------------------------  ----------  ---------- 
      Loss per share from discontinued operation (cents) 
 Basic                                                                                            (3.20)       (4.1) 
 Diluted                                                                                          (3.14)       (4.1) 
 -------------------------------------------------------------------------------------------  ----------  ---------- 
      The assets and liabilities attributable to the discontinued operation held for sale 
      are as 
      follows: 
      --------------------------------------------------------------------------------------  ---------- 
      ASSETS 
      Non-current assets 
 Property, plant and equipment                                                                     1 568 
 -------------------------------------------------------------------------------------------  ---------- 
      Current assets 
 Inventories                                                                                       2 136 
 Receivables and other assets                                                                         99 
 Cash and short-term deposits                                                                        140 
 -------------------------------------------------------------------------------------------  ---------- 
                                                                                                   2 375 
 -------------------------------------------------------------------------------------------  ---------- 
 Total assets                                                                                      3 943 
 -------------------------------------------------------------------------------------------  ---------- 
      LIABILITIES 
      Non-current liabilities 
 Provisions                                                                                        3 613 
 -------------------------------------------------------------------------------------------  ---------- 
      Current liabilities 
 Trade and other payables                                                                            608 
 -------------------------------------------------------------------------------------------  ---------- 
 Total liabilities                                                                                 4 221 
 -------------------------------------------------------------------------------------------  ---------- 
 
                                                                                                    2019        2018 
                                                                                                 US$'000     US$'000 
      --------------------------------------------------------------------------------------  ----------  ---------- 
      The net cash flows attributable to the discontinued operation held for sale are as 
      follows: 
 Operating                                                                                       (4 323)     (6 251) 
 Investing                                                                                             -         313 
 Financing                                                                                         4 384       5 845 
 Foreign exchange gain/(loss) on translation of cash balance                                           2        (11) 
 -------------------------------------------------------------------------------------------  ----------  ---------- 
 Cash inflow/(outflow)                                                                                63       (104) 
 -------------------------------------------------------------------------------------------  ----------  ---------- 
 
 
 
17.   ISSUED SHARE CAPITAL AND RESERVES 
      Share capital 
                                                                 31 December 2019        31 December 2018 
                                                              ----------------------  ----------------------- 
                                                                  Number                   Number 
                                                               of shares                of shares 
                                                                    '000     US$'000         '000     US$'000 
      ------------------------------------------------------  ----------  ----------  -----------  ---------- 
      Authorised - ordinary shares of US$0.01 each 
 As at year end                                                  200 000       2 000      200 000       2 000 
 -----------------------------------------------------------  ----------  ----------  -----------  ---------- 
 Issued and fully paid balance at beginning of year              138 896       1 390      138 620       1 387 
 Allotments during the year                                           88           1          276           3 
 -----------------------------------------------------------  ----------  ----------  -----------  ---------- 
 Balance at end of year                                          138 984       1 391      138 896       1 390 
 -----------------------------------------------------------  ----------  ----------  -----------  ---------- 
 
      Share premium 
      Share premium comprises the excess value recognised from the issue of ordinary shares at par 
       value. 
      Other reserves 
                                                                             Foreign 
                                                                            currency  Share-based 
                                                                         translation       equity 
                                                                             reserve      reserve       Total 
                                                                             US$'000      US$'000     US$'000 
      ------------------------------------------------------  ----------------------  -----------  ---------- 
 Balance at 1 January 2019                                                 (207 639)       55 610   (152 029) 
 Other comprehensive income                                                    (854)            -       (854) 
 -----------------------------------------------------------  ----------------------  -----------  ---------- 
 Total comprehensive income                                                    (854)            -       (854) 
 Share-based payments                                                              -          794         794 
 Transfer between reserves(1)                                                      -     (50 768)    (50 768) 
 -----------------------------------------------------------  ----------------------  -----------  ---------- 
 Balance at 31 December 2019                                               (202 493)        5 636   (202 857) 
 -----------------------------------------------------------  ----------------------  -----------  ---------- 
 Balance at 1 January 2018                                                 (177 984)       54 713   (123 811) 
 Other comprehensive expense                                                (29 655)            -    (29 655) 
 -----------------------------------------------------------  ----------------------  -----------  ---------- 
 Total comprehensive expense                                                (29 655)            -    (29 655) 
 Share-based payments                                                              -        1 437       1 437 
 -----------------------------------------------------------  ----------------------  -----------  ---------- 
 Balance at 31 December 2018                                               (207 639)       55 610   (152 029) 
 -----------------------------------------------------------  ----------------------  -----------  ---------- 
 (1) The Company elected to release share-based equity reserve relating to lapsed and exercised 
  options to accumulated (losses)/retained earnings. 
 
 
 
 Foreign currency translation reserve 
  The foreign currency translation reserve comprises all foreign exchange differences arising 
  from the translation of foreign entities. The South African, Lesotho, Botswana and United 
  Arab Emirates (abandoned during the year) subsidiaries' functional currencies are different 
  to the Group's functional currency of US dollar. The rates used to convert the operating functional 
  currency into US dollar are as follows: 
                                                                       Currency           2019           2018 
 ----------------------------------  ------------------------------------------  -------------  ------------- 
 Average rate                                                   ZAR/LSL to US$1          14.45          13.25 
 Year end                                                       ZAR/LSL to US$1          13.98          14.39 
 Average rate                                                      Pula to US$1          10.76          10.20 
 Year end                                                          Pula to US$1          10.58          10.73 
 Average rate                                                    Dirham to US$1           3.67           3.67 
 Year end                                                        Dirham to US$1           3.67           3.67 
 ----------------------------------  ------------------------------------------  -------------  ------------- 
 Share-based equity reserves 
  For details on the share-based equity reserve, refer Note 28, Share-based payments. 
 
  Capital management 
  For details on capital management, refer Note 27, Financial risk management. 
 ------------------------------------------------------------------------------------------------------------ 
 
 
18.   INTEREST-BEARING LOANS AND BORROWINGS 
                                                                                                        2019      2018 
                                                       Effective interest rate            Maturity   US$'000   US$'000 
      -----------------------------------  -----------------------------------  ------------------  --------  -------- 
      Non-current 
      LSL215.0 million bank loan facility 
 Tranche 1                                    South African JIBAR + 3.15%            31 March 2022     4 291     7 508 
 Tranche 2                                    South African JIBAR + 6.75%        30 September 2022     1 168     1 784 
 -----------------------------------  -----------------------------------  -----------------------  --------  -------- 
      US$45.0 million bank loan facility 
 Tranche 1                            London US$ three-month LIBOR + 4.5%         31 December 2020         -    10 000 
 -----------------------------------  -----------------------------------  -----------------------  --------  -------- 
 ZAR12.8 million asset-based finance 
  facility                               South African Prime Lending Rate           1 January 2024       550       662 
 -----------------------------------  -----------------------------------  -----------------------  --------  -------- 
                                                                                                       6 009    19 954 
   -----------------------------------------------------------------------------------------------  --------  -------- 
      Current 
      LSL215.0 million bank loan facility 
 Tranche 1                                    South African JIBAR + 3.15%            31 March 2022     3 433     3 337 
 Tranche 2                                    South African JIBAR + 6.75%        30 September 2022       667       649 
 -----------------------------------  -----------------------------------  -----------------------  --------  -------- 
      US$45.0 million bank loan facility 
 Tranche 1                            London US$ three-month LIBOR + 4.5%         31 December 2020    10 000    10 000 
 Tranche 2                             London US$ three-month LIBOR +4.5%         31 December 2020     2 000         - 
 -----------------------------------  -----------------------------------  -----------------------  --------  -------- 
 ZAR12.8 million asset-based finance 
  facility                               South African Prime Lending Rate           1 January 2024       232       226 
 -----------------------------------  -----------------------------------  -----------------------  --------  -------- 
                                                                                                      16 332    14 212 
   -----------------------------------------------------------------------------------------------  --------  -------- 
 
       LSL215.0 million (US$15.4 million) bank loan facility at Letšeng Diamonds 
        This loan comprises two tranches of debt as follows: 
         *    Tranche 1: South African rand denominated ZAR180.0 
              million (US$12.9 million) debt facility supported by 
              the Export Credit Insurance Corporation (ECIC) (five 
              years tenure); and 
 
 
         *    Tranche 2: Lesotho loti denominated LSL35.0 million 
              (US$2.5 million) term loan facility without ECIC 
              support (five years and six months tenure). 
 
 
 
        The loan is an unsecured project debt facility which was signed jointly with Nedbank and the 
        ECIC on 22 March 2017 for the total funding of the construction of the Letšeng mining 
        support services complex. The loan is repayable in equal quarterly payments which commenced 
        in September 2018. At year end LSL133.7 million (US$9.6 million) (31 December 2018: LSL191.0 
        million (US$13.3 million)) remains outstanding. The South African rand-based interest rates 
        for the facility at 31 December 2019 are: 
         *    Tranche 1: 9.95% (2018: 10.30%); and 
 
 
         *    Tranche 2: 13.55% (2018: 13.90%). 
 
 
 
        Total interest for the year on this interest-bearing loan was US$2.2 million (2018: US$1.6 
        million). 
 
        US$45.0 million bank loan facility at Gem Diamonds Limited 
        This facility is a three-and-a-half-year revolving credit facility (RCF) with Nedbank Capital 
        and consists of two tranches: 
         *    Tranche 1: relates to the Ghaghoo US$25.0 million 
              debt whereby capital repayments commenced in 
              September 2018 with a final repayment due on 31 
              December 2020; and 
 
 
         *    Tranche 2: this tranche of US$20.0 million relates to 
              an RCF and includes an upsize mechanism whereby this 
              tranche will increase by a ratio of 0.6:1 for every 
              repayment made under Tranche 1. This will result in 
              the available facility increasing to US$35.0 million 
              once Tranche 1 is fully repaid. 
 
 
 
        At year end US$10.0 million (31 December 2018: US$20.0 million) had been drawn down relating 
        to Tranche 1 and US$2.0 million (31 December 2018: US$nil) relating to Tranche 2. This resulted 
        in US$27.0 million remaining undrawn under Tranche 2. The US dollar-based interest rate for 
        this facility at 31 December 2019 is 6.44% (2018: 7.30%). 
 
        Total interest for the year on this interest-bearing RCF was US$1.7 million (2018: US$1.6 
        million). 
 
        ZAR12.8 million Asset-Based Finance facility 
        The Group, through its subsidiary, Gem Diamond Technical Services, entered into a ZAR12.8 
        million (US$0.9 million) Asset Based Finance (ABF) facility with Nedbank Limited for the purchase 
        of a mobile X-Ray transmission machine (the asset). The asset serves as security for the facility. 
        At year end ZAR10.9 million (US$0.8 million) remains outstanding. The facility is repayable 
        over five years and bears interest at the South African Prime Lending rate, which was 10.00% 
        at 31 December 2019 (2018: 10.25%). 
 
        Total interest for the year on this interest-bearing ABF was US$0.1 million (2018: US$0.1 
        million). 
 Other facilities 
 In addition, at 31 December 2019, the Group through its subsidiary Letšeng Diamonds, 
  has a LSL500.0 million (US$35.8 million) three-year unsecured revolving working capital facility 
  jointly with Standard Lesotho Bank and Nedbank Capital, which was renewed in July 2018. There 
  was no draw down of this facility at year end. 
 
  The Group, through its subsidiary, Letšeng Diamonds, entered into a ZAR100.0 million 
  (US$7.2 million) 12-month working capital facility during the year with Nedbank Limited (acting 
  through its Nedbank Corporate and Investment Banking division). There was no draw down of 
  this facility at year end and it expires in December 2020. 
 --------------------------------------------------------------------------------------------------------------------- 
 
 
                                                                                                     2019         2018 
                                                                                                  US$'000      US$'000 
      ------------------------------------------------------------------------  -------------------------  ----------- 
19.   LEASE LIABILITIES 
 Non-current                                                                                        8 539            - 
 Current                                                                                            1 940            - 
 -----------------------------------------------------------------------------  -------------------------  ----------- 
 Total lease liabilities                                                                           10 479            - 
 -----------------------------------------------------------------------------  -------------------------  ----------- 
      Lease liabilities is a new category of liabilities that was recognised on adoption of IFRS 
       16 Leases. Refer Note 1.2.1, Changes in accounting policies and disclosures. 
                                                                                                           31 December 
                                                                                                                  2019 
                                                                                                               US$'000 
      ---------------------------------------------------------------------------------------------------  ----------- 
      Reconciliation of movement in lease liabilities 
 As at 1 January 2019                                                                                           11 043 
 Additions                                                                                                       1 156 
 Interest expense                                                                                                1 087 
 Lease payments                                                                                                (2 988) 
 Foreign exchange differences                                                                                      181 
 --------------------------------------------------------------------------------------------------------  ----------- 
 As at 31 December 2019                                                                                         10 479 
 --------------------------------------------------------------------------------------------------------  ----------- 
 The Group recognised rent expense from short-term leases of US$1.7 million and variable lease 
  payments of US$61.7 million for the year ended 31 December 2019. 
 
  Residual value guarantees of US$0.1 million exist on leases for backup power generating equipment 
  at Letšeng, which represents the cost to decommission and return the power generating 
  equipment to the supplier at the end of the lease term. 
 --------------------------------------------------------------------------------------------------------  ----------- 
 
 
                                                                                                        2019      2018 
                                                                                                     US$'000   US$'000 
      --------------------------------------------------------------------------------------------  --------  -------- 
20.   TRADE AND OTHER PAYABLES 
      Non-current 
 Severance pay benefits(1)                                                                             1 936     1 555 
 -------------------------------------------------------------------------------------------------  --------  -------- 
      Current 
 Trade payables(2)                                                                                    13 368    12 672 
 Accrued expenses(2)                                                                                   8 817    11 019 
 Leave benefits                                                                                          615       499 
 Royalties and withholding taxes(2)                                                                    3 573     2 572 
 Operating lease(3)                                                                                        -     1 538 
 Other                                                                                                    17       254 
 -------------------------------------------------------------------------------------------------  --------  -------- 
                                                                                                      26 390    28 554 
 -------------------------------------------------------------------------------------------------  --------  -------- 
      (1) The severance pay benefits arise due to legislation within the Lesotho jurisdiction, 
      requiring that two weeks of severance pay be provided for every completed year of service, 
      payable on retirement. 
      (2) These amounts are mainly non-interest bearing and are settled in accordance with terms 
      agreed between the parties. 
      (3) In line with the adoption requirements of IFRS 16 Leases, accrued lease agreements 
      relating 
      to operating leases were allocated against the right-of-use assets recognised. Refer Note 
      1.2.1, Changes in accounting policies and Note 10, Right-of-use assets. 
 
      Included in accrued expenses is US$0.5 million relating to employee taxes on fringe benefits 
      not withheld on mileage reimbursements. This was disclosed as a contingent liability in the 
      prior year. Refer Note 25, Commitments and contingencies. 
 
      Royalties consist of a levy paid to the Government of the Kingdom of Lesotho on the value 
      of diamonds sold by Letšeng. This levy increased from 8% to 10% in October 2019 in line 
      with the terms of the renewed Letšeng mining lease. 
 
      The carrying amounts above approximate fair value. 
      --------------------------------------------------------------------------------------------  --------  -------- 
 
21.   INCOME TAX (RECEIVABLE)/PAYABLE 
      Reconciliation of movement in income tax payable 
 Balance at 1 January                                                                                  8 964     1 276 
 Payments made during the year                                                                      (18 787)  (12 623) 
 Tax charge per statement of profit or loss                                                            1 948    21 131 
 Foreign exchange differences                                                                          (301)     (820) 
 -------------------------------------------------------------------------------------------------  --------  -------- 
 Balance at 31 December                                                                              (8 176)     8 964 
 -------------------------------------------------------------------------------------------------  --------  -------- 
      Split as follows 
 Income tax receivable                                                                               (8 189)         - 
 Income tax payable                                                                                       13     8 964 
 -------------------------------------------------------------------------------------------------  --------  -------- 
22.   PROVISIONS 
 Rehabilitation provisions                                                                            15 588    17 876 
 -------------------------------------------------------------------------------------------------  --------  -------- 
      Reconciliation of movement in rehabilitation provisions 
 Balance at 1 January                                                                                 17 876    17 306 
 (Decrease)/increase during the year                                                                   (295)     1 944 
 Unwinding of discount rate                                                                            1 130     1 078 
 Discontinued operation (Note 16)                                                                    (3 613)         - 
 Foreign exchange differences                                                                            490   (2 452) 
 -------------------------------------------------------------------------------------------------  --------  -------- 
 Balance at 31 December                                                                               15 588    17 876 
 -------------------------------------------------------------------------------------------------  --------  -------- 
 Rehabilitation provisions 
  The provisions have been recognised as the Group has an obligation for rehabilitation of the 
  mining areas. The provisions have been calculated based on total estimated rehabilitation 
  costs, discounted back to their present values over the LoM at the mining operations. The 
  pre-tax discount rates are adjusted annually and reflect current market assessments. 
 
  In determining the amounts attributable to the rehabilitation provision at the Lesotho mining 
  area, management used a discount rate of 6.7% (31 December 2018: 6.6%), estimated rehabilitation 
  timing of 17 years (31 December 2018: seven years) and an inflation rate of 5.0% (31 December 
  2018: 5.3%). At the Botswana mining area, management used the available estimated costs to 
  rehabilitate, considering its care and maintenance state. In addition to the changes in the 
  discount rates, inflation and rehabilitation timing, the increase in the provision (including 
  Ghaghoo) is attributable to the annual reassessment of the estimated closure costs performed 
  at the operations together with the ongoing rehabilitation spend during the year at Letšeng. 
 --------------------------------------------------------------------------------------------------------------------- 
 
 
                                                                                              2019           2018 
                                                                                           US$'000        US$'000 
      ----------------------------------------------------------------------------  --------------  ------------- 
23.   DEFERRED TAXATION 
      Deferred tax assets 
 Lease liabilities                                                                           2 705              - 
 Accrued leave                                                                                  52             56 
 Operating lease liability                                                                       -              2 
 Provisions                                                                                  5 114          5 688 
 ---------------------------------------------------------------------------------  --------------  ------------- 
                                                                                             7 871          5 746 
 ---------------------------------------------------------------------------------  --------------  ------------- 
      Deferred tax liabilities 
 Property, plant and equipment                                                            (84 532)       (75 470) 
 Right-of-use assets                                                                       (2 174)              - 
 Prepayments                                                                                 (251)          (292) 
 Unremitted earnings                                                                       (4 038)        (4 038) 
 ---------------------------------------------------------------------------------  --------------  ------------- 
                                                                                          (90 995)       (79 800) 
 ---------------------------------------------------------------------------------  --------------  ------------- 
 Net deferred tax liability                                                               (83 124)       (74 054) 
      Reconciliation of deferred tax liability 
 Balance at beginning of year                                                             (74 054)       (78 579) 
      Movement in current period: 
 - Accelerated depreciation for tax purposes                                               (6 914)        (6 667) 
 - Accrued leave                                                                               (4)            (1) 
 - Operating lease liability                                                                 (351)             26 
 - Prepayments                                                                                  41             44 
 - Provisions                                                                                (351)          1 381 
 - Lease liabilities                                                                         2 626              - 
 - Right-of-use assets                                                                     (2 112)              - 
 - Foreign exchange differences                                                            (2 005)          9 742 
 ---------------------------------------------------------------------------------  --------------  ------------- 
 Balance at end of year                                                                   (83 124)       (74 054) 
 ---------------------------------------------------------------------------------  --------------  ------------- 
 The Group has not recognised a deferred tax liability for all taxable temporary differences 
  associated with investments in subsidiaries because it is able to control the timing of dividends 
  and only part of the temporary difference is expected to reverse in the foreseeable future. 
  The gross temporary difference in respect of the undistributable reserves of the Group's subsidiaries 
  for which a deferred tax liability has not been recognised is US$92.8 million (31 December 
  2018: US$70.5 million). 
 
  The Group has estimated tax losses of US$211.2 million (31 December 2018: US$194.5 million). 
  All tax losses are generated in jurisdictions where tax losses do not expire. No deferred 
  tax assets were recognised on these losses. 
 ---------------------------------------------------------------------------------------------------------------- 
 
 
                                                                                            2019      2018 
                                                                                 Notes   US$'000   US$'000 
      -----  ------------------------------------------------------------------  -----  --------  -------- 
24.   CASH FLOW NOTES 
      24.1   Cash generated by operations 
  Profit before tax for the year - continuing operations                                  24 050    78 708 
  Loss for the year - discontinued operation                                             (4 454)   (5 719) 
             Adjustments for: 
  Depreciation and amortisation excluding waste stripping                            4    12 551     8 699 
  Depreciation on right-of-use assets                                               10     2 526         - 
  Waste stripping cost amortised                                                     4    43 129    68 205 
  Finance income                                                                     6     (668)   (2 033) 
  Finance costs                                                                  6, 16     6 656     3 880 
  Unrealised foreign exchange differences                                                (4 184)   (8 201) 
  Profit on disposal and scrapping of property, plant and equipment                        (762)     (695) 
  Reclassification of foreign currency translation reserve                                   (4)         - 
  Movement in prepayment                                                                   (647)       426 
  Other non-cash movements                                                                 2 657     5 048 
  Share-based equity transaction                                                             794     1 437 
  -----------------------------------------------------------------------------  -----  --------  -------- 
                                                                                          81 644   149 755 
  -----------------------------------------------------------------------------  -----  --------  -------- 
      24.2   Working capital adjustment 
  Increase in inventory                                                                    (851)   (3 660) 
  Decrease/(increase) in receivables                                                       1 596     (261) 
  (Decrease)/increase in payables                                                        (3 599)     5 837 
  -----------------------------------------------------------------------------  -----  --------  -------- 
                                                                                         (2 854)     1 916 
  -----------------------------------------------------------------------------  -----  --------  -------- 
      24.3   Cash flows from financing activities excluding lease liabilities 
  Balance at beginning of year                                                            34 166    46 343 
  Net cash used in financing activities                                                 (12 175)  (10 024) 
                                                                                        --------  -------- 
  - Financial liabilities repaid                                                        (47 056)  (12 937) 
  - Financial liabilities raised                                                          34 881     2 913 
                                                                                        --------  -------- 
  Non-cash movement - FCTR                                                                   350   (2 212) 
  Interest accrued                                                                             -        59 
  -----------------------------------------------------------------------------  -----  --------  -------- 
  Balance at year end                                                               18    22 341    34 166 
  -----------------------------------------------------------------------------  -----  --------  -------- 
 
 
                                                                                                        2019      2018 
                                                                                                     US$'000   US$'000 
      --------------------------------------------------------------------------------------------  --------  -------- 
25.   COMMITMENTS AND CONTINGENCIES 
      Commitments 
      Mining leases 
      Mining lease commitments represent the Group's future obligation arising from agreements 
      entered 
      into with local authorities in the mining areas that the Group operates. 
      During the year, the Letšeng mining lease was extended for 10 years, expiring on 2 
      October 
      2029, with an exclusive option to renew for a further 10 years to 2039. 
      The period of these commitments is determined as the lesser of the term of the agreement, 
      including renewable periods, or the LoM. The estimated lease obligation regarding the future 
      lease period, accepting stable inflation and exchange rates, is as follows: 
 - Within one year                                                                                       149       139 
 - After one year but not more than five years                                                           862       652 
 - More than five years                                                                                1 821       825 
 -------------------------------------------------------------------------------------------------  --------  -------- 
                                                                                                       2 832     1 616 
 -------------------------------------------------------------------------------------------------  --------  -------- 
      Equipment and service lease 
      The Group has entered into lease arrangements for the provision of loading, hauling and 
      other 
      transportation services payable at a fixed rate per tonne of ore and waste mined; power 
      generator 
      equipment payable based on a consumption basis; and rental agreements for various mining 
      equipment 
      based on the fleet utilised. All lease payments relating to this lease are variable in 
      nature 
      and have therefore been recognised in the statement of profit or loss. Refer Note 1.2.28, 
      Critical accounting estimates. The terms of this lease are negotiated during the extension 
      option periods catered for in the agreements or at any time sooner if agreed by both 
      parties. 
 
      During the year the mining contractor lease was extended for four years, expiring on 31 
      October 
      2024. 
 - Within one year                                                                                    59 267    45 234 
 - After one year but not more than five years                                                       254 218    80 813 
      - More than five years                                                                               -         - 
      --------------------------------------------------------------------------------------------  --------  -------- 
                                                                                                     313 485   126 047 
 -------------------------------------------------------------------------------------------------  --------  -------- 
      Letšeng Diamonds Educational Fund 
      In terms of the mining agreement entered into between the Group and the Government of the 
      Kingdom of Lesotho, the Group has an obligation to provide funding for education and 
      training 
      scholarships. The quantum of such funding is at the discretion of the Letšeng Diamonds 
      Education Fund Committee. 
 - Within one year                                                                                        39        47 
 - After one year but not more than five years                                                            69         - 
      - More than five years                                                                               -         - 
      --------------------------------------------------------------------------------------------  --------  -------- 
                                                                                                         108        47 
 -------------------------------------------------------------------------------------------------  --------  -------- 
      Capital expenditure 
 Approved but not contracted for                                                                       3 299     3 618 
 Approved and contracted for                                                                           1 490     6 228 
 -------------------------------------------------------------------------------------------------  --------  -------- 
                                                                                                       4 789     9 846 
 -------------------------------------------------------------------------------------------------  --------  -------- 
 The main capital expenditure approved but not contracted for relates to the construction of 
  a new accommodation block of US$0.7 million, continued tailings storage extension investment 
  of US$0.6 million, information technology (IT) and security equipment upgrades of US$0.6 million 
  and further mineral resource and reserve studies of US$0.5 million. The expenditure will be 
  incurred over the next two years. 
 
  Contingent rentals - Alluvial Ventures 
  The contingent rentals represent the Group's obligation to a third party (Alluvial Ventures) 
  for operating a third plant on the Group's mining property at Letšeng Diamonds. The rental 
  is determined when the actual diamonds mined by Alluvial Ventures are sold. The rental agreement 
  is based on 40% to 60% of the value (after costs) of the diamonds recovered by Alluvial Ventures 
  and is limited to US$1.5 million per individual diamond. As at the reporting date, such future 
  sales cannot be determined. 
 
  Contingencies 
  The Group has conducted its operations in the ordinary course of business in accordance with 
  its understanding and interpretation of commercial arrangements and applicable legislation 
  in the countries where the Group has operations. In certain specific transactions, however, 
  the relevant third party or authorities could have a different interpretation of those laws 
  and regulations that could lead to contingencies or additional liabilities for the Group. 
  Having consulted professional advisers, the Group has identified possible disputes approximating 
  US$0.2 million (December 2018: US$0.1 million). 
 
  The Group monitors possible tax claims within the various jurisdictions in which the Group 
  operates. Possible tax claims of US$1.3 million were disclosed in the prior year, of which, 
  US$0.8 million were resolved during the current year without requiring the recognition of 
  a liability. The remaining balance of US$0.5 million related to employee taxes on fringe benefits 
  which has been recognised in accrued expenses. Refer Note 20, Trade and other payables. Management 
  applies judgement in identifying uncertainties over tax treatments and concluded that there 
  were no uncertain tax treatments relating to the current year. Refer Note 1.2.28, Critical 
  accounting estimates and judgements. There remains a risk that further tax liabilities may 
  potentially arise. While it is difficult to predict the ultimate outcome in some cases, the 
  Group does not anticipate that there will be any material impact on the Group's results, financial 
  position or liquidity. 
 --------------------------------------------------------------------------------------------------------------------- 
 
 
26.   RELATED PARTIES 
      Related party                                                                                       Relationship 
      --------------------------------------------------------------------------------------  ------------------------ 
      Jemax Management (Proprietary) Limited                                                           Common director 
      Gem Diamond Holdings Limited                                                                     Common director 
      Government of the Kingdom of Lesotho                                                    Non-controlling interest 
      --------------------------------------------------------------------------------------  ------------------------ 
      Refer Note 1.1.2, Operational information, for information regarding shareholding in 
      subsidiaries. 
                                                                                        2019                      2018 
                                                                                     US$'000                   US$'000 
      -------------------------------------------------------------------------  -----------  ------------------------ 
      Compensation to key management personnel (including Directors) 
 Share-based equity transactions                                                         440                       872 
 Short-term employee benefits                                                          3 063                     2 652 
 ------------------------------------------------------------------------------  -----------  ------------------------ 
                                                                                       3 503                     3 524 
 ------------------------------------------------------------------------------  -----------  ------------------------ 
      Fees paid to related parties 
 Jemax Management (Proprietary) Limited                                                 (83)                     (111) 
 ------------------------------------------------------------------------------  -----------  ------------------------ 
      Royalties paid to related parties 
 Government of the Kingdom of Lesotho                                               (15 459)                  (20 850) 
 ------------------------------------------------------------------------------  -----------  ------------------------ 
      Lease and licence payments to related parties 
 Government of the Kingdom of Lesotho                                                  (146)                     (131) 
 ------------------------------------------------------------------------------  -----------  ------------------------ 
      Sales to/(purchases from) related parties 
 Jemax Management (Proprietary) Limited                                                  (5)                         - 
 ------------------------------------------------------------------------------  -----------  ------------------------ 
      Amount included in trade payables owing to related parties 
 Jemax Management (Proprietary) Limited                                                  (9)                       (8) 
 ------------------------------------------------------------------------------  -----------  ------------------------ 
      Amounts owing to related party 
 Government of the Kingdom of Lesotho                                                (3 537)                   (2 568) 
 ------------------------------------------------------------------------------  -----------  ------------------------ 
      Dividends paid 
 Government of the Kingdom of Lesotho                                                      -                  (20 742) 
 ------------------------------------------------------------------------------  -----------  ------------------------ 
 Jemax Management (Proprietary) Limited provided administrative services with regard to the 
  mining activities undertaken by 
  the Group. A controlling interest is held by an Executive Director of the Company. 
 
  The above transactions were made on terms agreed between the parties and were made on terms 
  that prevail in arm's length 
  transactions. 
 --------------------------------------------------------------------------------------------------------------------- 
 
 
27.  FINANCIAL RISK MANAGEMENT 
      Financial risk factors 
      The Group's activities expose it to a variety of financial risks: 
       *    market risk (including commodity price risk, foreign 
            exchange risk and interest rate risk); 
 
 
       *    credit risk; and 
 
 
       *    liquidity risk. 
 
 
 
      The Group's overall risk management programme focuses on the unpredictability of financial 
      markets and seeks to minimise potential adverse effects on the Group's financial performance. 
 
      Risk management is carried out under policies approved by the Board of Directors. The Board 
      provides principles for overall risk management, as well as policies covering specific areas, 
      such as foreign exchange risk, interest rate risk, credit risk, use of derivative financial 
      instruments and non-derivative financial instruments, and investing excess liquidity. 
 
      There have been no changes to the financial risk management policy since the prior year. 
 
      Capital management 
      For the purpose of the Group's capital management, capital includes the issued share capital, 
      share premium and liabilities on the Group's statement of financial position. The primary 
      objective of the Group's capital management is to ensure that it maintains a strong credit 
      rating and healthy capital ratios in order to support its business and maximise shareholder 
      value. The Group manages its capital structure and makes adjustments to it, in light of changes 
      in economic conditions. To maintain or adjust the capital structure, the Group may issue new 
      shares or restructure its debt facilities. The management of the Group's capital is performed 
      by the Board. 
 
      The Group's capital management, among other things, aims to ensure that it meets financial 
      covenants attached to its interest-bearing loans and borrowings. Breaches in meeting the financial 
      covenants would permit the bank to immediately call loans and borrowings. There have been 
      no breaches of the financial covenants in the current year. 
 
      At 31 December 2019, the Group had US$69.9 million (31 December 2018: US$57.8 million) of 
      undrawn debt facilities and continues to have the flexibility to manage the capital structure 
      more efficiently by the use of these debt facilities, thus ensuring that an appropriate gearing 
      ratio is achieved. 
 
      The debt facilities in the Group are as follows: 
 
      Unsecured - Standard Lesotho Bank and Nedbank Capital (a division of Nedbank Limited) - three-year 
      unsecured revolving credit facility - LSL500.0 million (US$35.8 million) 
      The Group, through its subsidiary, Letšeng Diamonds, has an LSL500.0 million (US$35.8 
      million), three-year unsecured revolving working capital facility which was renewed in July 
      2018. The facility bears interest at the Lesotho prime rate minus 1.5%. 
 
      At year end, there was no drawdown on this facility. 
 
      Unsecured - Nedbank Limited (acting through its Nedbank Corporate and Investment Banking division) 
      - 12-month unsecured working capital facility - LSL100.0 million (US$7.2 million) 
      The Group, through its subsidiary, Letšeng Diamonds, has an LSL100.0 million (US$7.2 
      million), 12-month unsecured working capital facility which was entered into in December 2019. 
      The facility bears interest at the South African prime rate minus 0.7%. 
 
      At year end, there was no drawdown on this facility. 
 
      Unsecured - Nedbank Limited and Export Credit Insurance Corporation (ECIC) - five years and 
      six months project debt facility - LSL215.0 million (US$15.4 million) 
      The Group, through its subsidiary, Letšeng Diamonds, has an unsecured project debt loan 
      facility consisting of two tranches as follows: 
       *    Tranche 1: South African rand denominated ZAR180.0 
            million (US$12.9 million) debt facility supported 
            ECIC (five years' tenure); and 
 
 
       *    Tranche 2: Lesotho loti denominated LSL35.0 million 
            (US$2.5 million) term loan facility without ECIC 
            support (five years and six months' tenure). 
 
 
 
      The facility is repayable in equal quarterly payments, which commenced in September 2018 and 
      bears interest as follows: 
       *    Tranche 1: Johannesburg ZAR interbank three-month 
            JIBAR + 3.15%; and 
 
 
       *    Tranche 2: Johannesburg ZAR interbank three-month 
            JIBAR + 6.75%. 
 
 
 
      At year end LSL133.7 million (US$9.6 million) remains outstanding, with no available balance 
      to be drawn down under this facility. 
 
      Unsecured - Nedbank Capital (a division of Nedbank Limited) - three-and-a-half-year unsecured 
      debt facility - US$45.0 million 
      This facility is a three-and-a-half-year revolving credit facility (RCF) with Nedbank Capital 
      and consists of two tranches: 
       *    Tranche 1: relates to the Ghaghoo US$25.0 million 
            debt whereby capital repayments commenced in 
            September 2018 with a final repayment due on 31 
            December 2020; and 
 
 
       *    Tranche 2: this tranche of US$20.0 million is a RCF 
            and includes an upsize mechanism whereby it will 
            increase by a ratio of 0.6:1 for every repayment made 
            under Tranche 1. This will result in the available 
            facility increasing to US$35.0 million once Tranche 1 
            is fully repaid. 
 
 
 
      This RCF bears interest at London USD Interbank three-month LIBOR + 4.5%. 
 
      At year end US$10.0 million was drawn down relating to Tranche 1 and US$2.0 million relating 
      to Tranche 2. This resulted in US$27.0 million available to be drawn under Tranche 2. 
 
      ZAR12.8 million Asset Based Finance facility 
      The Group, through its subsidiary, Gem Diamond Technical Services, entered into an ABF facility 
      with Nedbank Limited for the purchase of an X-Ray transmission machine. The facility is repayable 
      over five years and bears interest at the South African Prime Lending rate, which was 10.00% 
      at 31 December 2019. The facility is repayable in equal monthly payments which commenced in 
      February 2019. 
 
      At year end US$0.8 million had been drawn down on this facility. 
 
 
  (a)  Market risk 
       (i)    Commodity price risk 
               The Group is subject to diamond price risk. Diamonds are not homogeneous products and the 
               price of rough diamonds is not monitored on a public index system. The fluctuation of prices 
               is related to certain features of diamonds such as quality and size. Diamond prices are marketed 
               in US dollar and long-term US dollar per carat prices are based on external market consensus 
               forecasts and contracted sales arrangements adjusted for the Group's specific operations. 
               The Group does not have any financial instruments that may fluctuate as a result of commodity 
               price movements. 
       (ii)   Foreign exchange risk 
               The Group operates internationally and is exposed to foreign exchange risk arising from various 
               currency exposures, primarily with respect to the Lesotho loti, South African rand and Botswana 
               pula. Foreign exchange risk arises when future commercial transactions, recognised assets 
               and liabilities are denominated in a currency that is not the entity's functional currency. 
               The Group's sales are denominated in US dollar which is the functional currency of the Company, 
               but not the functional currency of the operations. 
 
               The currency sensitivity analysis below is based on the following assumptions: 
 
               Differences resulting from the translation of the financial statements of the subsidiaries 
               into the Group's presentation currency of US dollar, are not taken into consideration. 
 
               The major currency exposures for the Group relate to the US dollar and local currencies of 
               subsidiaries. Foreign currency exposures between two currencies where one is not the US dollar 
               are deemed insignificant to the Group and have therefore been excluded from the sensitivity 
               analysis. 
 
               The analysis of the currency risk arises because of financial instruments denominated in a 
               currency that is not the functional currency of the relevant Group entity. The sensitivity 
               has been based on financial assets and liabilities at 31 December 2019. There has been no 
               change in the assumptions or method applied from the prior year. 
 
               Sensitivity analysis 
               There were no material financial assets or financial liabilities denominated in a currency 
               that is not the functional currency of the relevant Group entity, and therefore if the US 
               dollar had appreciated/(depreciated) by 10% against currencies significant to the Group at 
               31 December 2019, income before taxation would not have been materially impacted. There would 
               be no effect on equity reserves other than those directly related to statement of profit or 
               loss and foreign currency translation reserve movements. 
       (iii)  Forward exchange contracts 
               The Group enters into forward exchange contracts to hedge the exposure to changes in foreign 
               currency of future sales of diamonds at Letšeng Diamonds. The Group performs no hedge 
               accounting. At 31 December 2019, the Group had no forward exchange contracts outstanding (31 
               December 2018: US$nil). 
       (iv)   Interest rate risk 
               The Group's income and operating cash flows are substantially independent of changes in market 
               interest rates. The Group's cash flow interest rate risk arises from borrowings. Borrowings 
               issued at variable rates expose the Group to cash flow interest rate risk. At the time of 
               taking new loans or borrowings, management uses its judgement to decide whether it believes 
               that a fixed or variable rate borrowing would be more favourable to the Group over the expected 
               period until maturity. 
 
               Sensitivity analysis 
               If the interest rates on the interest-bearing loans and borrowings (increased)/decreased by 
               60 basis points during the year, profit before tax would have been US$0.2 million (lower)/higher 
               (31 December 2018: US$0.2 million). The assumed movement in basis points is based on the currently 
               observable market environment, which remained consistent with the prior year. 
  (b)  Credit risk 
        The Group's potential concentration of credit risk consists mainly of cash deposits with banks, 
        trade receivables and other receivables. The Group's short-term cash surpluses are placed 
        with banks that have investment grade ratings. The maximum credit risk exposure relating to 
        financial assets is represented by the carrying value as at the reporting dates. 
 
        The Group considers the credit standing of counterparties when making deposits to manage the 
        credit risk. 
        Considering the nature of the Group's ultimate customers and the relevant terms and conditions 
        entered into with such customers, the Group believes that credit risk is limited as customers 
        pay on receipt of goods. 
 
        No other financial assets are impaired or past due and accordingly, no additional analysis 
        has been provided. 
 
        No collateral is held in respect of any impaired receivables or receivables that are past 
        due but not impaired. 
  (c)  Liquidity risk 
        Liquidity risk arises from the Group's inability to obtain the funds it requires to comply 
        with its commitments including the inability to sell a financial asset quickly at a price 
        close to its fair value. Management manages the risk by maintaining sufficient cash, marketable 
        securities and ensuring access to financial institutions and shareholding funding. This ensures 
        flexibility in maintaining business operations and maximises opportunities. The Group has 
        available debt facilities of US$69.9 million at year end (2018: US$57.8 million) 
 
 
  The table below summarises the maturity profile of the Group's financial liabilities at 31 
   December based on contractual undiscounted payments, excluding discontinued operation: 
                                                                                2019         2018 
                                                                             US$'000      US$'000 
  --------------------------------------------------------------------  ------------  ----------- 
  Floating interest rates 
  Interest-bearing loans and borrowings 
  - Within one year                                                           17 734       16 626 
  - After one year but not more than five years                                6 636       22 008 
  --------------------------------------------------------------------  ------------  ----------- 
  Total                                                                       24 370       38 634 
  --------------------------------------------------------------------  ------------  ----------- 
  Lease liabilities 
  - Within one year                                                            2 895            - 
  - After one year but not more than five years                               10 416            - 
  --------------------------------------------------------------------  ------------  ----------- 
  Total                                                                       13 311            - 
  --------------------------------------------------------------------  ------------  ----------- 
  Trade and other payables 
  - Within one year                                                           26 390       28 554 
  - After one year but not more than five years                                1 936        1 555 
  --------------------------------------------------------------------  ------------  ----------- 
  Total                                                                       28 326       30 109 
  --------------------------------------------------------------------  ------------  ----------- 
 
 
                                                                                                       2019       2018 
                                                                                                    US$'000    US$'000 
      ------------------------------------------------------------------------------------------  ---------  --------- 
28.   SHARE-BASED PAYMENTS 
      The expense recognised for employee services received during the year is shown in the 
      following 
      table: 
 Equity-settled share-based payment transactions charged to the statement of profit or loss 
  - continuing operation                                                                                784      1 422 
 Equity-settled share-based payment transactions charged to the statement of profit or loss 
  discontinued operation                                                                                 10         15 
 ------------------------------------------------------------------------------------------       ---------  --------- 
                                                                                                        794      1 437 
 ------------------------------------------------------------------------------------------       ---------  --------- 
 The long-term incentive plans are described below: 
 
  Long-term incentive plan (LTIP) 
  Certain key employees are entitled to a grant of options, under the LTIP of the Company. The 
  vesting of the options is dependent on employees remaining in service for a prescribed period 
  (normally three years) from the date of grant. The fair value of share options granted is 
  estimated at the date of the grant using an appropriate simulation model, taking into account 
  the terms and conditions upon which the options were granted. It takes into account projected 
  dividends and share price fluctuation co-variances of the Company. 
 
  There is a nil or nominal exercise price for the options granted. The contractual life of 
  the options is 10 years and there are no cash settlement alternatives. The Company has no 
  past practice of cash settlement. 
 
  The Company's LTIP policy is reviewed every 10 years. 
 LTIP 2007 Award 
  Under the 2007 LTIP rules, there are five awards where options are still outstanding. 
 
  All five awards were awarded on the following basis: 
  To key employees (excluding Executive Directors): 
    *    the awards vest over a three-year period in tranches 
         of a third of the award each year; 
 
 
    *    the vesting of the award is dependent on service 
         conditions and certain performance targets being met 
         for the same three-year period financial years 
         (classified as non-market conditions); 
 
 
    *    if the performance or service conditions are not met, 
         the options lapse; 
 
 
    *    the performance conditions relating to the non-market 
         conditions are not reflected in the fair value of the 
         award at grant date; 
 
 
    *    once the awards vest, they are exercisable for seven 
         years (ie. contractual term is 10 years); and 
 
 
    *    equity settled. 
 
 
 
   To Executive Directors: 
    *    the awards vest over a three-year period; 
 
 
    *    the vesting of the award is dependent on service 
         conditions and both market and non-market performance 
         conditions; 
 
 
    *    75% of the awards granted are subject to non-market 
         conditions and 25% to market conditions by reference 
         to the Company's total shareholder return (TSR) as 
         compared to a group of principal competitors; 
 
 
    *    if the performance or service conditions are not met, 
         the options lapse; 
 
 
    *    the performance conditions relating to the non-market 
         conditions are not reflected in the fair value of the 
         award at grant date; 
 
 
    *    once the awards vest, they are exercisable for seven 
         years (ie. contractual term is 10 years); and 
 
 
    *    equity settled. 
 
 
 
 The following table reflects details of all the awards within the 2007 LTIP that remain outstanding: 
                                                     LTIP          LTIP          LTIP           LTIP            LTIP 
                                                    March         April          June          March       September 
                                                     2016          2015          2014           2014            2012 
 -----------------------------------------  -------------  ------------  ------------  -------------  -------------- 
 Number of options granted - nil value          1 215 000     1 215 000       456 750        625 000         312 000 
 Number of options granted - market value         185 000       185 000       152 250              -         624 000 
 Date exercisable                           15 March 2019  1 April 2018  10 June 2017  19 March 2017  1 January 2016 
 Options outstanding                              326 439       102 508        89 857         15 000          18 544 
 Dividend yield (%)                                  2.00          2.00             -              -               - 
 Expected volatility(1) (%)                         39.71         37.18         37.25              -           42.10 
 Risk-free interest rate (%)                         0.97          1.16          1.94              -            0.33 
 Expected life of option (years)                     3.00          3.00          3.00           3.00            3.00 
 Exercise price (US$)                                 nil           nil           nil            nil            2.85 
 Exercise price (GBP)                                 nil           nil           nil            nil            1.78 
 Weighted average share price (US$)                  1.56          2.10          2.70           2.87            2.85 
 Fair value of nil value options (US$)               1.40          1.97          2.70           2.87            2.85 
 Fair value of nil value options (GBP)               0.99          1.33          1.61           1.74            1.78 
 Fair value of market value options (US$)            0.69          1.18          1.83              -            1.66 
 Fair value of market value options (GBP)            0.49          0.80          1.09              -            1.04 
 Model used                                   Monte Carlo   Monte Carlo   Monte Carlo              -     Monte Carlo 
 -----------------------------------------  -------------  ------------  ------------  -------------  -------------- 
 (1) Expected volatility was based on the average annual historic volatility over the previous 
  three years. 
 
 LTIP 2017 Award 
  Under the 2017 LTIP rules, there are three awards where options are still outstanding. 
 
  All the awards were issued on the same basis as the 2007 LTIP. 
 
  During the current year, one new award was made as follows: 
 
  LTIP 2017 Award - March 2019 
  On 20 March, 1 303 000 nil-cost options were granted to certain key employees and Executive 
  Directors. 142 500 of the options granted relate to market conditions. The options vest after 
  a three-year period and are exercisable between 20 March 2022 and 19 March 2029. If the performance 
  or service conditions are not met, the options lapse. The performance conditions relating 
  to the non-market conditions are not reflected in the fair value of the award at grant date, 
  and therefore the Company will assess the likelihood of these conditions being met with a 
  relevant adjustment to the cumulative charge as required at each financial year end. The fair 
  value of the nil-cost options is GBP0.90 (US$1.20) and the option grants are settled by issuing 
  shares. Of the 1 303 000 options originally granted, 1 258 359 are still outstanding following 
  the resignation of a number of employees and the lapsing of awards due to certain performance 
  conditions not having been met. 
 
 
 The following table reflects details of all the awards within the 2017 LTIP that remain outstanding: 
                                                                     LTIP               LTIP            LTIP 
                                                               March 2019         March 2018       July 2017 
 -----------------------------------------------------  -----------------  -----------------  -------------- 
 Number of options granted - nil value                          1 160 500          1 265 000       1 150 000 
 Number of options granted - market value                         142 500            185 000         185 000 
 Date exercisable                                           20 March 2022      20 March 2021     4 July 2020 
 Options outstanding                                            1 258 359          1 198 018         993 679 
 Dividend yield (%)                                                     -                  -            2.00 
 Expected volatility(1) (%)                                         43.00              40.00           40.21 
 Risk-free interest rate (%)                                          1.2                1.2            0.67 
 Expected life of option (years)                                     3.00               3.00            3.00 
 Exercise price (US$)                                                 nil                nil             nil 
 Exercise price (GBP)                                                 nil                nil             nil 
 Weighted average share price (US$)                                  1.20               1.35            1.24 
 Fair value of nil value options (US$)                               1.20               1.35            1.11 
 Fair value of nil value options (GBP)                               0.90               0.96            0.86 
 Fair value of market value options (US$)                            0.58               0.74            0.72 
 Fair value of market value options (GBP)                            0.44               0.53            0.56 
 Model used                                                   Monte Carlo        Monte Carlo     Monte Carlo 
 -----------------------------------------------------  -----------------  -----------------  -------------- 
 
 
 The following table illustrates the number ('000) and movement in the outstanding share options 
  during the year: 
                                                                                2019             2018 
                                                                                '000             '000 
 -----------------------------------------------------------------------  ----------  --------------- 
 Outstanding at beginning of year                                              3 538            3 612 
 Granted during the year                                                       1 303            1 450 
 Exercised during the year(2)                                                   (81)            (241) 
 Forfeited                                                                     (758)          (1 283) 
 -----------------------------------------------------------------------  ----------  --------------- 
 Balance at end of year                                                        4 002            3 538 
 -----------------------------------------------------------------------  ----------  --------------- 
 Exercisable at end of year                                                      613              266 
 -----------------------------------------------------------------------  ----------  --------------- 
 (1) Expected volatility was based on the average annual historic volatility over the previous 
  three years. 
  (2) Options were exercised regularly throughout the year. The weighted average share price 
  during the year was GBP0.80 (US$1.02). 
 The weighted average remaining contractual life for the share options outstanding as at 31 
  December 2019 was 8.0 years (2018: 8.2 years). 
 
  The range of exercise prices for options outstanding at the end of the year was US$0.00 to 
  $2.85 (2018: US$0.00 to $2.85). 
 ESOP 
  In September 2017, 47 200 shares which were previously held in the Company Employee Share 
  Trust were granted to certain key employees involved in the Business Transformation of the 
  Group. The fair value of the award was valued at the share price of the Company at the date 
  of the award of GBP0.71 (US$0.96). These shares vested on 18 March 2019 and became immediately 
  exercisable. All shares remain outstanding at the end of the year as follows: 
                                                                                2019             2018 
                                                                                '000             '000 
 -----------------------------------------------------------------------  ----------  --------------- 
 Outstanding at beginning of year                                                 47               47 
 Granted during the year                                                           -                - 
 Exercised during the year                                                         -                - 
 -----------------------------------------------------------------------  ----------  --------------- 
 Balance at end of year                                                           47               47 
 -----------------------------------------------------------------------  ----------  --------------- 
 Exercisable at end of year                                                       47                - 
 -----------------------------------------------------------------------  ----------  --------------- 
 
 
29.   FINANCIAL INSTRUMENTS 
      Set out below is an overview of financial instruments, other than the non-current and current 
       portions of the prepayment disclosed in Note 13, Receivables and other assets, which do not 
       meet the criteria of a financial asset. These prepayments are carried at amortised cost. 
                                                                                                      2019        2018 
                                                                                          Notes    US$'000     US$'000 
      -----------------------------------------------------------------------------  ----------  ---------  ---------- 
      Financial assets at amortised cost 
 Cash (net of overdraft) - continuing operations                                             15     11 303      50 812 
 Cash - discontinued operation                                                               16        140           - 
 Receivables and other assets - continuing operations                                        13      4 735       4 395 
 Receivables and other assets - discontinued operation                                       16         99           - 
 -----------------------------------------------------------------------------       ----------  ---------  ---------- 
 Total                                                                                              16 277      55 207 
 -----------------------------------------------------------------------------       ----------  ---------  ---------- 
      Total non-current                                                                                  -           - 
 Total current                                                                                      16 277      55 207 
      Financial liabilities at amortised cost 
 Interest-bearing loans and borrowings                                                       18     22 341      34 166 
 Finance lease liabilities                                                                   19     10 479           - 
 Trade and other payables - continuing operations                                            20     28 325      30 109 
 Trade and other payables - discontinued operation                                           16        608           - 
 -----------------------------------------------------------------------------       ----------  ---------  ---------- 
 Total                                                                                              61 753      64 275 
 -----------------------------------------------------------------------------       ----------  ---------  ---------- 
 Total non-current                                                                                  16 484      21 509 
 Total current                                                                                      45 269      42 766 
 -----------------------------------------------------------------------------       ----------  ---------  ---------- 
      The carrying amounts of the Group's financial instruments held approximate their fair value. 
 
       There were no open hedges at year end (2018: nil). 
      ---------------------------------------------------------------------------------------------------------------- 
 
30.   DIVIDS PAID AND PROPOSED 
       There were no dividends proposed for the 2019 or 2018 financial years. 
      ---------------------------------------------------------------------------------------------------------------- 
 
31.   EVENTS AFTER THE REPORTING PERIOD 
       No fact or circumstance has taken place between the end of the reporting period and the approval 
       of the financial statements which, in our opinion, is of significance in assessing the state 
       of the Group's affairs or require adjustments or disclosures. 
      ---------------------------------------------------------------------------------------------------------------- 
32.   MATERIAL PARTLY OWNED SUBSIDIARY 
       Financial information of Letšeng Diamonds, a 70% held subsidiary which has a material 
       non-controlling interest, with the remaining 30% being held by the Government of the Kingdom 
       of Lesotho, is provided below. 
                                                                                     Country of 
                                                                                  incorporation       2019        2018 
      Name                                                                        and operation    US$'000     US$'000 
      ----------------------------------------------------------------------  -----------------  ---------  ---------- 
      Letšeng Diamonds (Proprietary) Limited                                       Lesotho 
 Accumulated balances of material non-controlling interest                                          76 427      67 692 
 Profit allocated to material non-controlling interest                                               8 319      20 985 
      The summarised financial information of this subsidiary is provided 
      below. This information 
      is based on amounts before intercompany eliminations. 
      Summarised statement of profit or loss for the year ended 31 December 
 Revenue                                                                                           179 785     262 636 
 Cost of sales                                                                                   (127 244)   (152 360) 
 -----------------------------------------------------------------------------  ---------------  ---------  ---------- 
 Gross profit                                                                                       52 541     110 276 
 Royalties and selling costs                                                                      (15 715)    (21 159) 
 Other income                                                                                        3 333       1 262 
 -----------------------------------------------------------------------------  ---------------  ---------  ---------- 
 Operating profit                                                                                   40 159      90 379 
 Net finance (costs)/income                                                                        (3 792)         743 
 -----------------------------------------------------------------------------  ---------------  ---------  ---------- 
 Profit before tax                                                                                  36 367      91 122 
 Income tax expense                                                                                (8 637)    (21 172) 
 -----------------------------------------------------------------------------  ---------------  ---------  ---------- 
 Profit for the year                                                                                27 730      69 950 
 Total comprehensive income                                                                         27 730      69 950 
 -----------------------------------------------------------------------------  ---------------  ---------  ---------- 
 Attributable to non-controlling interest                                                            8 319      20 985 
 Dividends paid to non-controlling interest                                                              -      20 742 
 -----------------------------------------------------------------------------  ---------------  ---------  ---------- 
      Summarised statement of financial position as at 31 December 
      Assets 
      Non-current assets 
 Property, plant and equipment and intangible assets                                               340 646     298 565 
      Current assets 
 Inventories, receivables and other assets, and cash and short-term deposits                        53 476      60 092 
 -----------------------------------------------------------------------------  ---------------  ---------  ---------- 
 Total assets                                                                                      394 122     358 657 
 -----------------------------------------------------------------------------  ---------------  ---------  ---------- 
      Non-current liabilities 
 Interest-bearing loans and borrowings, trade and other payables, provisions 
  and deferred tax 
  liabilities                                                                                      109 385      95 371 
      Current liabilities 
 Interest-bearing loans and borrowings and trade and other payables                                 29 981      37 649 
 -----------------------------------------------------------------------------  ---------------  ---------  ---------- 
 Total liabilities                                                                                 139 366     133 020 
 -----------------------------------------------------------------------------  ---------------  ---------  ---------- 
 Total equity                                                                                      254 756     225 638 
 -----------------------------------------------------------------------------  ---------------  ---------  ---------- 
      Attributable to: 
 Equity holders of parent                                                                          178 329     157 946 
 Non-controlling interest                                                                           76 427      67 692 
      Summarised cash flow information for the year ended 31 December 
 Operating                                                                                          70 093      82 718 
 Investing                                                                                        (81 314)    (99 931) 
 Financing                                                                                         (6 701)         195 
 -----------------------------------------------------------------------------  ---------------  ---------  ---------- 
 Net decrease in cash and cash equivalents                                                        (17 922)    (17 018) 
 -----------------------------------------------------------------------------  ---------------  ---------  ---------- 
 
 

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