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| Share Name | Share Symbol | Market | Type | Share ISIN | Share Description |
|---|---|---|---|---|---|
| Asiamet Resources Limited | LSE:ARS | London | Ordinary Share | BM04521V1038 | COM SHS 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% | 0.825 | 0.80 | 0.85 | 0.875 | 0.825 | 0.825 | 2,713,343 | 10:35:22 |
| Industry Sector | Turnover | Profit | EPS - Basic | PE Ratio | Market Cap |
|---|---|---|---|---|---|
| Miscellaneous Metal Ores,nec | 0 | -6.93M | -0.0027 | -3.04 | 21.27M |
TIDMARS
RNS Number : 2360O
Asiamet Resources Limited
16 May 2018
For Immediate Release London AIM 16 May 2018 Symbol: ARS
Asiamet Reports Initial Mineral Resource Estimate for BKZ Polymetallic Deposit
Asiamet Resources Limited ("Asiamet" or the "Company") is pleased to report a maiden Mineral Resource Estimate for the BKZ Polymetallic ("BKZ") deposit located on the Company's 100% owned KSK Contract of Work (CoW) in Kalimantan, Indonesia. The Statement of Mineral Resources (Table 1) completed by Hackman & Associates ("Hackman") is reported in accordance with the requirements of the 2012 JORC Code.
BKZ is very strategically located adjacent to existing and proposed infrastructure for the BKM copper project which is currently in the final stages of a bankable feasibility study. The high grade, shallow nature of the BKZ mineralisation coupled with the potential to share infrastructure considerably enhances the opportunity for Asiamet to develop a second, high value mine in the BK district.
The initial Mineral Resource Estimate for BKZ is subdivided into the BKZ Upper Polymetallic Zone ("BKZ-UPZ") and the BKZ Lower Copper Zone ("BKZ-LCZ").
The BKZ Upper Polymetallic Zone displays semi-massive to structurally controlled VMS-style lead, zinc, silver and gold mineralisation occurring in a high-grade domain and disseminated style mineralisation in the low-grade domain. The controls on and styles of mineralisation has resulted in significantly different tenors of grade between these domains and hence they are reported separately in the 2018 Resource Estimate. The BKZ Lower Copper Zone comprises a quartz-sulphide stockwork zone hosting chalcopyrite and bornite copper mineralisation. Table 1 below details the BKZ Mineral Resource as estimated in the 2018 Resource model.
Highlights - BKZ Mineral Resource Estimate (100% basis)
-- Upper Polymetallic Zone Inferred Mineral Resource comprises:
o High Grade Domain - 750,000 tonnes at 8.0% Zinc, 3.4% Lead, 50g/t Silver and 0.35g/t Gold containing 132Mlbs zinc, 57Mlbs lead, 1.2Moz silver and 8,400oz gold at 4% Zn cut-off grade
o Low Grade Domain - 590,000 tonnes at 1.6% Zinc, 0.5% Lead, 13g/t Silver and 0.15g/t Gold containing 20 Mlbs zinc, 7Mlbs lead, 247Koz silver and 2,800oz gold at 1% Zn cut-off grade
-- Lower Copper Zone Inferred Mineral Resource comprises:
o High Grade Domain - 1.1M tonnes at 1.1% Copper and 13g/t Silver
containing 26Mlbs copper and 460,000 ounces silver at a 0.5% copper cut-off grade
-- Mineralisation remains open in multiple directions at both the BKZ Upper Polymetallic Zone and the BKZ Lower Copper Zone and many targets with potential to expand the Resource base remain to be tested.
Highlights - KSK CoW Exploration Programme
-- Exploration drilling aimed at expanding the Resource base will continue testing extensions to mineralised domains along strike and at depth
-- Infill drilling aimed at confirming continuity and consistency of mineralisation types in order to convert part or all of BKZ Resource to Measured and Indicated Resource categories is planned
-- Metallurgical testing programme to assess performance of BKZ Resource mineralisation to recover lead, zinc, silver, copper, gold concentrates will be undertaken. Subject to receiving positive results a Preliminary Economic Assessment ("PEA") will be initiated
-- Further core studies and geophysical data have identified a new high-priority target area where the interpretation is that a large magnetic feature at depth may represent an untested porphyry intrusion. This area will be targeted for deep scout drilling in late 2018
-- Identification of eight further high priority prospects in addition to BKW, BKS and BKZ-BKM Link zone targets warranting aggressive follow-up exploration. These include Baroi-FEZ, Gunung Perak, Volcano, Low Zone, Waterfall, Rinjen, Kalang and Bukit Dea. All targets display similar surface geochemical and geophysical signatures to that of the BKZ deposit
Peter Bird, Asiamet's Chief Executive Officer commented:
"The reporting of an initial Mineral Resource estimate for the BKZ polymetallic deposit today represents another very important value adding milestone for Asiamet. The BKZ polymetallic deposit mineralisation is located close to existing roads and the proposed infrastructure for the BKM copper project. The BKZ inventory has the potential to significantly enhance the economics of any mine development in the area. Our ability to discover and delineate this high grade, near surface polymetallic deposit in such a short timeframe clearly demonstrates the largely untapped potential of both the BK district and the broader KSK CoW.
BKZ remains open in multiple directions and all geological indicators suggest the BKM-BKZ corridor and multiple surrounding targets will continue to deliver further substantial growth in the Company's mineral inventory over the coming months and years. We are truly excited by this opportunity and look forward to reporting on further progress as our exploration effort continues to unlock value at both the KSK and Beutong projects where we especially look forward to results of recent deep drilling at the latter."
Mineral Resource Estimate
The BKZ Upper Polymetallic Zone Mineral Resource is contained within a near-surface, shallow-dipping, strongly mineralised system that extends over an area of 350m (N-S) and 150m (E-W) and remains open in multiple directions. This zone is defined by a continuous high grade domain and peripheral low grade domain. Mineralisation in the high grade domain is characterised by semi-massive to massive replacement style sphalerite-galena with locally very high grades reporting up to 30.7% zinc, 17.7% lead and 158g/t silver over 1-metre sample intervals. Mineralisation within the low grade domain is characterised by disseminated replacement style sphalerite-galena typically with sample grades ranging between 0.3% to 4.0% zinc, <1.0% lead and <50g/t silver.
Mineralisation in the BKZ Lower Copper Zone (Cu-Ag) comprises stockwork quartz-sulphide and sulphide (pyrite-chalcopyrite-bornite) veins with assay results reporting up to 12% copper and 20g/t Silver over 1-metre sample intervals.
The April 2018 Mineral Resource Estimate for the BKZ Polymetallic deposit is presented in Table 1 below and a copy of the "BKZ Polymetallic Project Resource Estimate Technical Statement" which presents an overview of the Resource data quality, analyses and estimation process is appended. Details of the Resource data quality and analyses and the estimation process are tabulated in a JORC (2012) table 1 report which will be available on the Asiamet Resources Limited website on Wednesday 16 May 2018 (www.asiametresources.com).
Table 1: BKZ Mineral Resource Estimate, April 2018 (100% basis)
Hot Features
Premium
BKZ Polymetallic Deposit Inferred Resource Estimate
(JORC Code, 2012)
--------------------------------------------------------------------------------------
Upper Polymetallic Zone. High Grade Zinc, Lead,
Silver and Gold Domain.
Inferred Resources (JORC 2012) *
--------------------------------------------------------------------------------------
Reporting Tonnes Grade Contained Metal
Cut (Zn%) (kt)
----------- ------- ------------------------------ --------------------------------
Zn Pb Ag Au Zn Pb Ag Au
(%) (%) (ppm) (ppm) (kt) (kt) (koz) (koz)
----------- ------- ----- ----- ------- ------- ------ ------ ------- -------
4.0 750 8.0 3.4 50 0.35 60 26 1206 8.4
----------- ------- ----- ----- ------- ------- ------ ------ ------- -------
Upper Polymetallic Zone. Low Grade Zinc, Lead,
Silver and Gold Domain.
Inferred Resources (JORC 2012) **
--------------------------------------------------------------------------------------
Reporting Tonnes Grade Contained Metal
Cut (Zn%) (kt)
----------- ------- ------------------------------ --------------------------------
Zn Pb Ag Au Zn Pb Ag Au
(%) (%) (ppm) (ppm) (kt) (kt) (koz) (koz)
----------- ------- ----- ----- ------- ------- ------ ------ ------- -------
1.0 590 1.6 0.5 13 0.15 9 3 247 2.8
----------- ------- ----- ----- ------- ------- ------ ------ ------- -------
Lower Copper Zone. Copper and Silver Mineralisation.
Inferred Resources (JORC 2012)
--------------------------------------------------------------------------------------
Reporting Tonnes Grade Contained Metal
Cut (Cu%) (kt)
----------- ------- ------------------------------ --------------------------------
Cu (%) Ag (ppm) Cu (kt) Ag (koz)
----------- ------- ------------ ---------------- -------------- ----------------
0.5 1100 1.1 13 12 460
----------- ------- ------------ ---------------- -------------- ----------------
* Lowest estimated Zn grade in the high grade zinc domain is 4.1%Zn
** Highest estimated Zn grade in the low grade zinc domain is 4.2%Zn
Notes: Lower Zn and Cu grade reporting cuts approximate the mineralised domains extents. Mineral Resources for the BKZ Polymetallic Project have been estimated and reported under the guidelines detailed in the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (JORC Code 2012). In the opinion of Duncan Hackman, the block model, resource estimate and resource classification reported herein are a reasonable representation of the Mineral Resources found in the defined area of the BKZ Polymetallic Project. Mineral Resources are not Ore Reserves and do not have demonstrated economic viability. There is no certainty that all or any part of the Mineral Resource will be converted into Ore Reserve. Computational discrepancies in the table and the body of the Release are the result of rounding.
Methodology
The April 2018 BKZ Polymetallic Resource Estimate is based on the KSK geological and analytical database as at 22 April 2018 and the 2018 geological, structural and mineralisation interpretations by Stephen Hughes who is a full-time employee of PT Kalimantan Surya Kencana. The data analyses, triangulation domaining, block modelling, grade interpolation and classification was undertaken by Duncan Hackman of Hackman and Associates Pty. Ltd.
The estimate is underpinned by data from 42 diamond drill holes (4,287m) containing 2,472 logged and assayed sample intervals (predominantly 1m). Sample data was composited to two metre intervals and flagged by the domains defined in the geological and mineralisation interpretations. Single and double passes of Inverse Distance Squared interpolation runs were employed to estimate Cu, Zn, Pb, Ag and Au grades within domains into a sub-blocked model (parent block size of 25mE x 25mN x 10mRL). High grade restrictions were applied. Tonnage factors were applied to blocks by a regression formula between dry bulk density and the total estimated Fe+Zn+Pb+Cu grade. The Resource estimate has been classified based on data density, data quality, confidence in the geological interpretation and confidence in the robustness of grade interpolation.
Refer "BKZ Polymetallic Project Resource Estimate Technical Statement" for a comprehensive summary of the Mineral Resource estimation methodology (appended).
KSK CoW Exploration Programme
Exploration drilling aimed at expanding the Resource base will continue testing the extensions to mineralised domains along strike and at depth. Infill drilling will also be required to confirm continuity and consistency of mineralisation types in order to facilitate the conversion of part or all of the BKZ Resource to the Measured and Indicated Resource categories (JORC 2012). A metallurgical testing programme will be undertaken to assess the performance of both the BKZ-UPZ and BKZ-LCZ mineralisation using conventional flotation processes to recover lead, zinc, silver, copper and gold into concentrates and subject to receiving positive results a PEA will be initiated.
Recent mapping immediately south of the BKZ area along the interpreted Beruang Thrust Fault has identified a new high priority target area close to where the 3D magnetic geophysical inversion model highlights a large magnetic feature at depth. The discovery of strong magnetite alteration in core from holes drilled into the BKZ-LCZ deposit support the interpretation that the magnetic feature may represent an untested porphyry intrusion. A 3D inversion of induced polarisation geophysical data for the northern BKM area also shows a large chargeability feature at depth, coincident with the magnetic feature. This area will be targeted for deep scout drilling in 2018.
A detailed review of the 2013 gravity geophysical and surface geochemical data for the KSK CoW has further strengthened the Company's view of the potential for the discovery of additional copper and polymetallic deposits. Additional to the high priority BKW, BKS and the BKZ-BKM Link zone targets, eight other high priority prospects warranting aggressive follow-up exploration include Baroi-FEZ, Gunung Perak, Volcano, Low Zone, Waterfall, Rinjen, Kalang and Bukit Dea (Figure 2). All twelve targets display similar surface geochemical and geophysical signatures to that of the BKZ deposit, namely a coincident gravity high with strongly anomalous copper-zinc-lead in soils and in streams draining these prospect areas.
The Company plans to systematically follow-up exploration of these priority targets as permits are received.
Qualified Person
Data disclosed in this press release have been reviewed and verified by Asiamet's qualified person, Stephen Hughes, P. Geo, Vice President Exploration of the Company and a Competent Person within the meaning of JORC and for the purposes of the AIM Rules for Companies.
The information in this report that relates to exploration results, data collection and geological interpretation is based on information compiled by Stephen Hughes BSc (Hons). Mr Hughes is registered with the Association of Professional Geoscientists of Nova Scotia and with the Australian Institute of Geoscientists. Mr Hughes has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity that is being undertaken to qualify as Competent Person as defined in the 2012 edition of the 'Australasian Code for Reporting of Exploration Results, Minerals Resources and Ore Reserves' (JORC Code). Mr Hughes consents to the inclusion in the report of the matters based on their information in the form and context in which it appears.
The information in this statement referring to Mineral Resources is based on information compiled by Duncan Hackman B.App.Sc., MSc. of Hackman & Associates, a Competent Person who is a Member of the Australian Institute of Geoscientists. Duncan Hackman is an independent resource consultant and has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify as a Competent Person as defined in the 2012 Edition of the 'Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves'. Duncan Hackman consents to the inclusion in the statement of the matters based on his information in the form and context in which it appears.
ON BEHALF OF THE BOARD OF DIRECTORS
Peter Bird, Deputy Chairman and CEO
For further information, please contact:
-Ends-
Peter Bird
Deputy Chairman and CEO, Asiamet Resources Limited
Telephone: +61 3 8644 1300
Email: peter.bird@asiametresources.com
Tony Manini
Executive Chairman, Asiamet Resources Limited
Telephone: +61 3 8644 1300
Email: tony.manini@asiametresources.com
FlowComms Limited
Sasha Sethi
Telephone: +44 (0) 7891 677 441
Email: Sasha@flowcomms.com
Asiamet Resources Nominated Adviser
RFC Ambrian Limited
Andrew Thomson / Stephen Allen
Telephone: +61 8 9480 2500
Email: Andrew.Thomson@rfcambrian.com / Stephen.Allen@rfcambrian.com
Liberum
Neil Elliot, Clayton Bush, Kane Collings
Telephone: +44 7773 322679
Email: Neil.Elliot@Liberum.com
Optiva Securities Limited
Christian Dennis
Telephone: +44 20 3137 1903
Email: Christian.Dennis@optivasecurities.com
This news release contains forward-looking statements that are based on the Company's current expectations and estimates. Forward-looking statements are frequently characterised by words such as "plan", "expect", "project", "intend", "believe", "anticipate", "estimate", "suggest", "indicate" and other similar words or statements that certain events or conditions "may" or "will" occur. Such forward-looking statements involve known and unknown risks, uncertainties and other factors that could cause actual events or results to differ materially from estimated or anticipated events or results implied or expressed in such forward-looking statements. Such factors include, among others: the actual results of current exploration activities; conclusions of economic evaluations; changes in project parameters as plans continue to be refined; possible variations in ore grade or recovery rates; accidents, labour disputes and other risks of the mining industry; delays in obtaining governmental approvals or financing; and fluctuations in metal prices. There may be other factors that cause actions, events or results not to be as anticipated, estimated or intended. Any forward-looking statement speaks only as of the date on which it is made and, except as may be required by applicable securities laws, the Company disclaims any intent or obligation to update any forward-looking statement, whether as a result of new information, future events or results or otherwise. Forward-looking statements are not guarantees of future performance and accordingly undue reliance should not be put on such statements due to the inherent uncertainty therein.
This announcement contains inside information as stipulated under the Market Abuse Regulations (EU) no. 596/2014 ("MAR").
Figure 1: Location map showing strong Zinc in soil geochemistry over the BKZ prospect and Zinc drill intersections to date. To view the image, please click on the following link http://asiametresources.adnetcms.com/assets/pdf/img/Figure_1_BKZ_Zinc.png
Figure 2: Location map showing twelve prospects with coincident Gravity and Zinc-Copper geochemical anomalies within the KSK CoW. To view the image, please click on the following link http://asiametresources.adnetcms.com/assets/pdf/img/Figure_2_KSK.png
Appendix 1
BKZ POLYMETALLIC PROJECT RESOURCE ESTIMATE TECHNICAL STATEMENT
Introduction:
This technical statement summarises the activities, data observations and results of work undertaken by Hackman & Associates Pty Ltd ("H&A") in generating the BKZ Polymetallic 2018 Block Model and Resource Estimate. The BKZ Polymetallic Project is a base and precious metals Mineral Resource located 180 kilometres north of Palangkaraya, the capital city of Central Kalimantan. The BKZ Polymetallic mineralisation ("BKZ") is located within a 6th generation Contract of Work ("KSK CoW") held by PT Kalimantan Surya Kencana ("KSK"), which through various intermediary companies, is a 100% owned subsidiary company of Asiamet Resources Limited ("ARS").
Figure 1: Location map - KSK Contract of Work containing the BKZ Polymetallic Mineralisation. To view the image, please click on the following link http://asiametresources.adnetcms.com/assets/pdf/img/Figure_1_KSK.png
The 2018 BKZ Polymetallic Resource Estimate is based on the KSK geological and analytical database as at 22 April 2018 and the 2018 geological, structural and mineralisation interpretations by Stephen Hughes who is a full-time employee of KSK. The data analyses, triangulation domaining, block modelling, grade interpolation and classification was undertaken by Duncan Hackman of H&A.
The 2018 BKZ Resource Estimate is the maiden Resource estimate for the BKZ Project and estimates the mineralisation within both the Upper Polymetallic Zone and the Lower Copper Zone which define the deposit. The estimate incorporates information and data from 6 scout diamond holes drilled in 1999 and 36 diamond holes drilled to delineate the extent of the mineralisation in 2017-18.
The 2018 resource model covers 350m of the N-S strike extent of the mineralisation at BKZ and up to 150m of width and depth extent of the semi-massive sulphide and sulphidic silicified volcanic hosted mineralisation. Mineralisation is open to the north, south and east and outcrops to the west. The potential depth repetition of mineralisation is untested.
The model is underpinned by data from 42 diamond drill holes (4,287m) containing 2,472 logged and assayed, mainly 1m intervals. Sample data was composited to two metre intervals and flagged by the domains defined in the geological and mineralisation interpretations. Single and double passes of Inverse Distance Squared interpolation runs were employed to estimate Cu, Zn, Pb, Ag and Au grades within domains into a sub-blocked model (parent block size of 25mE x 25mN x 10mRL). High grade restrictions were applied. Tonnage factors were applied to blocks by a regression formula between dry bulk density and the total estimated Fe+Zn+Pb+Cu grade. Mineralisation was assessed with respect to having reasonable prospects for economic extraction and the resource estimate reporting cuts are supported by this evaluation. The resource estimate has been classified based on data density, data quality, confidence in the geological interpretation and confidence in the robustness of grade interpolation.
Results:
The resource is reported between 768850mE and 769050mE, 9933450mN and 9933850mN and above 130mRL (150m vertical extent). Table 1 details the BKZ Mineral Resource as estimated in the April 2018 Resource model.
Table 1: BKZ Polymetallic Mineral Resource, April 2018
BKZ Polymetallic Deposit Inferred Resource Estimate
(JORC Code, 2012)
--------------------------------------------------------------------------------------
Upper Polymetallic Zone. High Grade Zinc, Lead,
Silver and Gold Domain.
Inferred Resources (JORC 2012) *
--------------------------------------------------------------------------------------
Reporting Tonnes Grade Contained Metal
Cut (Zn%) (kt)
----------- ------- ------------------------------ --------------------------------
Zn Pb Ag Au Zn Pb Ag Au
(%) (%) (ppm) (ppm) (kt) (kt) (koz) (koz)
----------- ------- ----- ----- ------- ------- ------ ------ ------- -------
4.0 750 8.0 3.4 50 0.35 60 26 1206 8.4
----------- ------- ----- ----- ------- ------- ------ ------ ------- -------
Upper Polymetallic Zone. Low Grade Zinc, Lead,
Silver and Gold Domain.
Inferred Resources (JORC 2012) **
--------------------------------------------------------------------------------------
Reporting Tonnes Grade Contained Metal
Cut (Zn%) (kt)
----------- ------- ------------------------------ --------------------------------
Zn Pb Ag Au Zn Pb Ag Au
(%) (%) (ppm) (ppm) (kt) (kt) (koz) (koz)
----------- ------- ----- ----- ------- ------- ------ ------ ------- -------
1.0 590 1.6 0.5 13 0.15 9 3 247 2.8
----------- ------- ----- ----- ------- ------- ------ ------ ------- -------
Lower Copper Zone. Copper and Silver Mineralisation.
Inferred Resources (JORC 2012)
--------------------------------------------------------------------------------------
Reporting Tonnes Grade Contained Metal
Cut (Cu%) (kt)
----------- ------- ------------------------------ --------------------------------
Cu (%) Ag (ppm) Cu (kt) Ag (koz)
----------- ------- ------------ ---------------- -------------- ----------------
0.5 1100 1.1 13 12 460
----------- ------- ------------ ---------------- -------------- ----------------
* Lowest estimated Zn grade in the high grade zinc domain is 4.1%Zn
** Highest estimated Zn grade in the low grade zinc domain is 4.2%Zn
Notes: Lower Zn and Cu grade reporting cuts approximate the mineralised domains extents. Mineral Resources for the BKZ Polymetallic Project have been estimated and reported under the guidelines detailed in the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (JORC Code 2012). In the opinion of Duncan Hackman, the block model, resource estimate and resource classification reported herein are a reasonable representation of the mineral resources found in the defined area of the BKZ Polymetallic Project. Mineral Resources are not Ore Reserves and do not have demonstrated economic viability. There is no certainty that all or any part of the Mineral Resource will be converted into Ore Reserve. Computational discrepancies in the table and the body of the Release are the result of rounding.
Contributing Experts:
Expert Person / Area of Expertise and Contribution
Company of Expert
-------------------------- -----------------------------------------------
Duncan Hackman B.App.Sc., Exploration and Resource Geology
MSc, MAIG. - 32yrs experience. Data validation,
Hackman & Associates quality analysis and evaluation,
Pty. Ltd. resource domaining, block modelling,
grade interpolation, resource classification.
-------------------------- -----------------------------------------------
Stephen Hughes BSc. Exploration and Resource Geology
(Hons). AIG. APGNS. - 23yrs experience. Data validation
PT Kalimantan Surya and quality assurance, geological
Kencana and mineralisation interpretation.
-------------------------- -----------------------------------------------
Compliance with the JORC code assessment criteria and Competent Persons Consent:
This Mineral Resource statement has been compiled in accordance with the guidelines defined in the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (The JORC Code, 2012 Edition).
Duncan Hackman of Hackman & Associates (H&A) is a member of the Australian Institute of Geoscientists and has sufficient experience relevant to the style of mineralisation and type of deposit under consideration and to the activity undertaken to qualify as a Competent Person as defined in the 2012 Edition of the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (The JORC Code, 2012 Edition). Neither Duncan Hackman nor H&A have any material present or contingent interest in the outcomes of the BKZ Polymetallic Project Resource Estimate or the Public Release Statement, nor do they have any pecuniary or other interest that could be reasonably regarded as being capable of affecting their independence. H&A's fee for completing this Resource Estimate and authoring this Technical Resource Statement is based on its normal professional daily rates plus reimbursement of incidental expenses. The payment of the professional fee is not contingent upon the outcome of the estimate or wording of the statement.
Duncan Hackman has reviewed the Asiamet Resources Limited Statement dated 16(th) May 2018 titled "Asiamet Reports Initial Mineral Resource Estimate for BKZ Polymetallic Deposit" and consents for the inclusion in the Asiamet Resources Limited Public Release Statement of the matters based on his information and for Asiamet Resources Limited or their agents to use this statement in the form and context in which it appears.
The opinions and recommendations provided by Duncan Hackman are in response to requests by Asiamet Resources Limited and based on data and information provided by Asiamet Resources Limited or their agents. Duncan Hackman and H&A therefore accept no liability for commercial decisions or actions resulting from any opinions or recommendations offered within.
Duncan Hackman B.App.Sc., MSc, MAIG Consulting Geologist Hackman & Associates Pty. Ltd.
Key points relating to the BKZ Polymetallic 2018 Resource Estimate:
1. BKZ mineralisation is centred on 768950E, 9933700N (UTM, Zone 49S). The mineralisation has been delineated over a strike length of 350m (towards 000(O) ), across a width of 150m and to a depth of 150m below surface. Mineralisation is open to the north, south and east. There is limited potential to extend Resources to the west as mineralisation outcrops. The potential for depth repetition of mineralisation is not yet tested.
2. The BKZ Polymetallic 2018 Resource Estimate encompasses the two mineralised bodies within the BKZ Project Area, the Upper Polymetallic Mineralised Zone (Zn, Pb, Ag and Au) and the Lower Copper Mineralised Zone (Cu and Ag). Mineralisation in the Upper Polymetallic Zone is semi-massive in nature and hosted by andesitic volcanics (interpreted as being associated with low angle thrusts similar to those at the Beruang Kanan Main deposit (BKM) located 800m to the south of BKZ). Replacement and fracture fill chalcopyrite and bornite mineralisation in the Lower Copper Zone is hosted in pyritic and silicified volcanics.
3. The deposit is delineated by 42 diamond core (4,287m) drill holes, drilled on nominal 50m sections. Angled holes are drilled between -55 and -70 degrees and 11 are drilled towards 270(O) grid, 11 holes towards 090(O) , 3 holes are drilled towards 000(O) and 3 drilled towards 180(O) . A further 14 holes are drilled vertically. One pair of twin holes in the Lower Copper Zone supports mineralisation continuity over short ranges as do two crossed-hole pairs in the Upper Polymetallic Zone.
4. Sampling of mineralisation is at a nominal 1m length. Gold and multi-element assays from 2,472 half-HQ3 diamond core samples populate the BKZ Database. Length core recovery through mineralisation is good (>90% in all domains) however degradation of core is significant where selective recovery/loss is suspected through the scrubbing and washing away of material during the drilling process. 25% of samples in the high grade zinc domain, 31% in the low grade zinc domain and 14% in the Lower Copper Mineralisation domain are affected however it is not yet determinable if this selectivity has introduced a bias into the assay dataset as relative biases differ between high and low recovery samples for each element in each of the three mineralised domains. The observed relative biases diminish confidence in sample representivity and assay reliability and future drilling must focus on improving core recovery to improve reliability and Resource classification. An appropriate sample preparation and analytical quality control programme confirms that the assay values are of acceptable quality to underpin Inferred Resources at BKZ (JORC Code, 2012 Edition). Further investigations and inter-lab check assays are required before resources at BKZ can be considered for Indicated and Measured Resources classification.
5. High grade mineralised domains were modelled at >=4% combined Zn+Pb cutoff and >=0.2% Cu cutoff (established from data analysis studies) and directed by the geological and structural interpretation. An outer >=1% Zn+Pb domain was generated to estimate peripheral disseminated mineralisation. Geological and mineralisation continuity is largely inferred from the broad drill spacing. Infill drilling will result in upgrading the Resource to Indicated and Measured classification categories (data quality and reliability dependent).
6. Cu, Zn, Pb, Ag and Au grades were estimated by inverse distance squared (ID2) interpolation methods. Interpolation is guided and constrained by solid TIN (triangulated) boundaries. 1,470 two metre composites inform the grade interpolation within domains. Parent cell estimates (25mE x 25mN x 10mRL) were written to a sub-blocked model. High grade restrictions were employed to spatially constrain extreme grades from informing block grades at distance from sample locations (thresholds and distance restrictions being domain dependent). Tonnage factors were applied to the model by a regression formula determined between measured DBD (2,025 readings taken from BKZ) and the total Fe+Zn+Pb+Cu grade. Tonnage factors in the Upper Polymetallic Zone average 3.18g/cc and average 3.01g/cc in the Lower Copper Zone.
7. As assessed, and in accordance with the guidelines outlined in the JORC Code (2012 Edition), the mineralisation reported in the 2018 Resource estimate for the BKZ Polymetallic Project has reasonable prospects for eventual economic extraction. Assessment was undertaken by applying economic parameters sourced from the Mining Cost Service, Mine & Mill Equipment Estimator's Guide (2017), publicly available BFS studies of similar scale projects and preliminary values being determined for use in the nearby BKM copper BFS study (scheduled for completion in Q2 2018). Plant and Mill capital cost, mining (ore and waste costs, loss and dilution), processing (costs, recoveries and concentrate grades), transport (road, barge, port and sea freight costs), smelter treatment and refining costs (excluding participation and deleterious element charges), general/admin costs, royalties, concentrate payable metal percentages and spot metal prices were applied on a cost and revenue per tonne of mineralisation basis. In order to access the high grade zinc mineralisation and Lower Copper Mineralisation a significant portion of the low grade zinc mineralisation will need to be mined, thus the economic cut-off grade for the low grade zinc mineralisation was assessed with mining costs excluded. The proximity of the BKZ polymetallic mineralisation to the BKM copper deposit is a favourable feature with respect to sharing of capital and general/admin costs as well as providing processing opportunities for treating the copper mineralisation at BKZ. A zinc and lead smelter is current under construction at Kotawaringan Barat in Central Kalimantan and reports state that this smelter is open to receive ores from all sources offering in-country processing options for treatment of BKZ material.
8. The estimate is assigned an Inferred Mineral Resource classification under the guidelines outlined in the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (JORC Code, 2012 Edition). Drilling or data density, geological and grade continuity and data quality/reliability (particularly core recovery) are the key risk inputs in determining the Resource classification. The significant difference in mineralisation style and grade tenor between the low and high grade domains in the BKZ Upper Polymetallic Zone is considered of material importance to the project and therefor in accordance with the JORC Code (2012) principles the Resources for these domains are reported separately.
Glossary of Technical Terms
"anomaly or anomalous" something in mineral exploration
that geologists interpret
as deviating from what is
standard, normal, or expected.
---------------------------- -----------------------------------------------
The laboratory test conducted
"assay" to determine the proportion
of a mineral within a rock
or other material. For copper,
usually reported as percentage
which is equivalent to percentage
of the mineral (i.e. copper)
per tonne of rock.
---------------------------- -----------------------------------------------
"azimuth" the "compass direction" refers
to a geographic bearing or
azimuth as measured by a magnetic
compass, in true or magnetic
north.
---------------------------- -----------------------------------------------
"bornite" Bornite, also known as peacock
ore, is a copper sulphide
mineral with the formula Cu5FeS4.
---------------------------- -----------------------------------------------
"breccia" Breccia is a rock classification,
comprises millimetre to metre-scale
rock fragments cemented together
in a matrix, there are many
sub-classifications of breccias.
---------------------------- -----------------------------------------------
"chalcocite" Chalcocite is a copper sulphide
mineral with the formula Cu2S
and is an important copper
ore mineral. It is opaque
and dark-gray to black with
a metallic luster.
---------------------------- -----------------------------------------------
"chalcopyrite" Chalcopyrite is a copper sulphide
mineral with formula CuFeS2.
It has a brassy to golden
yellow colour.
---------------------------- -----------------------------------------------
"channel sample" Samples collected across a
mineralised rock exposure.
The channel is typically orientated
such that samples are collected
perpendicular to the mineralised
structure, if possible.
---------------------------- -----------------------------------------------
"chargeability" Chargeability is a physical
property related to conductivity.
Chargeability is used to characterise
the formation and strength
of the induced polarisation
within a rock, under the influence
of an electric field, suggesting
sulphide mineralisation at
depth.
---------------------------- -----------------------------------------------
"CIM" The reporting standard adopted
for the reporting of the Mineral
Resources is that defined
by the terms and definitions
given in the terminology,
definitions and guidelines
given in the Canadian Institute
of Mining, Metallurgy and
Petroleum (CIM) Standards
on Mineral Resources and Mineral
Reserves (December 2005) as
required by NI 43-101. The
CIM Code is an internationally
recognised reporting code
as defined by the Combined
Reserves International Reporting
Standards Committee.
---------------------------- -----------------------------------------------
"covellite" Covellite is a copper sulphide
mineral with the formula CuS.
This indigo blue mineral is
ubiquitous in some copper
ores.
---------------------------- -----------------------------------------------
"diamond drilling" A drilling method in which
penetration is achieved through
abrasive cutting by rotation
of a diamond encrusted drill
bit. This drilling method
enables collection of tubes
of intact rock (core) and
when successful gives the
best possible quality samples
for description, sampling
and analysis of an ore body
or mineralised structure.
---------------------------- -----------------------------------------------
"digenite" Digenite is a copper sulfide
mineral with formula Cu9S5.
Digenite is a black to dark
blue opaque mineral.
---------------------------- -----------------------------------------------
"dip" A line directed down the steepest
axis of a planar structure
including a planar ore body
or zone of mineralisation.
The dip has a measurable direction
and inclination from horizontal.
---------------------------- -----------------------------------------------
"galena" Galena is the natural mineral
form of lead (II) sulphide,
with formula PbS. It is the
most important ore of lead
and an important source of
silver. It has a silver colour.
---------------------------- -----------------------------------------------
"grab sample" are samples of rock material
collected from a small area,
often just a few pieces or
even a single piece of rock
"grabbed" from a face, dump
or outcrop or roughly 2-5kg.
These are common types of
rock samples collected when
conducting mineral exploration.
The sample usually consists
of material that is taken
to be representative of a
specific type of rock or mineralisation.
---------------------------- -----------------------------------------------
"grade" The proportion of a mineral
within a rock or other material.
For copper mineralisation
this is usually reported as
% of copper per tonne of rock
(g/t).
---------------------------- -----------------------------------------------
"g/t" grams per tonne; equivalent
to parts per million ('ppm')
---------------------------- -----------------------------------------------
"hematite" Hematite is the mineral form
of iron(III) oxide (Fe2O3),
one of several iron oxides.
Magnetite alteration is also
typically associate with porphyry
copper systems, at or close
to the central core.
---------------------------- -----------------------------------------------
"hypogene" Hypogene ore processes occur
deep below the earth's surface,
and form deposits of primary
minerals, such as chalcopyrite
and bornite.
---------------------------- -----------------------------------------------
"Indicated Resource" An 'Indicated Mineral Resource'
is that part of a Mineral
Resource for which quantity,
grade (or quality), densities,
shape and physical characteristics
are estimated with sufficient
confidence to allow the application
of Modifying Factors in sufficient
detail to support mine planning
and evaluation of the economic
viability of the deposit.
Geological evidence is derived
from adequately detailed and
reliable exploration, sampling
and testing gathered through
appropriate techniques from
locations such as outcrops,
trenches, pits, workings and
drill holes, and is sufficient
to assume geological and grade
(or quality) continuity between
points of observation where
data and samples are gathered.
An Indicated Mineral Resource
has a lower level of confidence
than that applying to a Measured
Mineral Resource and may only
be converted to a Probable
Ore Reserve.
---------------------------- -----------------------------------------------
"Inferred Resource" An 'Inferred Mineral Resource'
is that part of a Mineral
Resource for which quantity
and grade (or quality) are
estimated on the basis of
limited geological evidence
and sampling. Geological evidence
is sufficient to imply but
not verify geological and
grade (or quality) continuity.
It is based on exploration,
sampling and testing information
gathered through appropriate
techniques from locations
such as outcrops, trenches,
pits, workings and drill holes.
An Inferred Mineral Resource
has a lower level of confidence
than that applying to an Indicated
Mineral Resource and must
not be converted to an Ore
Reserve. It is reasonably
expected that the majority
of Inferred Mineral Resources
could be upgraded to Indicated
Mineral Resources with continued
exploration.
---------------------------- -----------------------------------------------
"Induced Polarisation Induced polarisation (IP)
Geophysics" is a geophysical survey used
to identify the electrical
chargeability of subsurface
materials, such as sulphides.
The survey involves an electric
current that is transmitted
into the subsurface through
two electrodes, and voltage
is monitored through two other
electrodes.
---------------------------- -----------------------------------------------
"intercept" Refers to a sample or sequence
of samples taken across the
entire width or an ore body
or mineralised zone. The intercept
is described by the entire
thickness and the average
grade of mineralisation.
---------------------------- -----------------------------------------------
JORC The Australasian Code for
Reporting of Exploration Results,
Mineral Resources and Ore
Reserves ('the JORC Code')
is a professional code of
practice that sets minimum
standards for Public Reporting
of minerals Exploration Results,
Mineral Resources and Ore
Reserves. The JORC Code provides
a mandatory system for the
classification of minerals
Exploration Results, Mineral
Resources and Ore Reserves
according to the levels of
confidence in geological knowledge
and technical and economic
considerations in Public Reports.
---------------------------- -----------------------------------------------
"lbs" Pounds (measure of weight)
---------------------------- -----------------------------------------------
"Mlbs" Million pounds (measure of
weight)
---------------------------- -----------------------------------------------
"magnetite" Magnetite is main iron ore
mineral, with chemical formula
Fe3O4. Magnetite is ferromagnetic,
and it is attracted to a magnet
and can be magnetised to become
a permanent magnet itself.
---------------------------- -----------------------------------------------
"massive" In a geological sense, refers
to a zone of mineralisation
that is dominated by sulphide
minerals. The sulphide-mineral-rich
material can occur in centimetre-scale,
metre-scale or in tens of
metres wide veins, lenses
or sheet-like bodies containing
sphalerite, galena, and /
or chalcopyrite etc.
---------------------------- -----------------------------------------------
"Measured Resource" A 'Measured Mineral Resource'
is that part of a Mineral
Resource for which quantity,
grade (or quality), densities,
shape, and physical characteristics
are estimated with confidence
sufficient to allow the application
of Modifying Factors to support
detailed mine planning and
final evaluation of the economic
viability of the deposit.
Geological evidence is derived
from detailed and reliable
exploration, sampling and
testing gathered through appropriate
techniques from locations
such as outcrops, trenches,
pits, workings and drill holes,
and is sufficient to confirm
geological and grade (or quality)
continuity between points
of observation where data
and samples are gathered.
A Measured Mineral Resource
has a higher level of confidence
than that applying to either
an Indicated Mineral Resource
or an Inferred Mineral Resource.
It may be converted to a Proved
Ore Reserve or under certain
circumstances to a Probable
Ore Reserve.
---------------------------- -----------------------------------------------
"Mineral Resource" A "Mineral Resource" is a
concentration or occurrence
of diamonds, natural solid
inorganic material, or natural
solid fossilised organic material
including base and precious
metals, coal, and industrial
minerals in or on the Earth's
crust in such form and quantity
and of such a grade or quality
that it has reasonable prospects
for economic extraction. The
location, quantity, grade,
geological characteristics
and continuity of a Mineral
Resource are known, estimated
or interpreted from specific
geological evidence and knowledge.
---------------------------- -----------------------------------------------
"mineralisation" In geology, mineralisation
is the deposition of economically
important metals (copper,
gold, lead, zin etc) that
in some cases can be in sufficient
quantity to form mineral ore
bodies.
---------------------------- -----------------------------------------------
"open pit mining" A method of extracting minerals
from the earth by excavating
downwards from the surface
such that the ore is extracted
in the open air (as opposed
to underground mining).
---------------------------- -----------------------------------------------
"outcrop" A section of a rock formation
or mineral vein that appears
at the surface of the earth.
Geologists take direct observations
and samples from outcrops,
used in geologic analysis
and creating geologic maps.
In situ (in place) measurements
are critical for proper analysis
of the geology and mineralisation
of the area under investigation.
---------------------------- -----------------------------------------------
"polymetallic" three or more metals that
may occur in magmatic, volcanogenic,
or hydrothermal environments;
common base and precious metals
include copper, lead, zinc,
silver and gold.
---------------------------- -----------------------------------------------
"polymict" A geology term, often applied
to breccias or conglomerates,
which identifies the composition
as consisting of fragments
of several different rock
types.
---------------------------- -----------------------------------------------
"porphyry" Porphyry copper deposits are
copper +- gold +- molybdenum
orebodies that are formed
from hydrothermal fluids that
originate from a voluminous
magma chamber below the deposit
itself.
---------------------------- -----------------------------------------------
"Preliminary Economic NI 43-101 defines a PEA as
Assessment" "a study, other than a pre-feasibility
study or feasibility study,
which includes an economic
analysis of the potential
viability of mineral Resources".
---------------------------- -----------------------------------------------
"propylitic alteration" Propylitic alteration is the
chemical alteration of minerals
within a rock, caused by hydrothermal
fluids. This style of alteration
typically results in epidote-chlorite+-albite
alteration and veining or
fracture filling, commonly
altering biotite or amphibole
minerals within the rock groundmass.
It typically occurs along
with pyrite.
---------------------------- -----------------------------------------------
"sediments" Sedimentary rocks formed by
the accumulation of sediments.
There are three types, Clastic,
Chemical and Organic sedimentary
rocks.
---------------------------- -----------------------------------------------
"sequential assays" Sequential copper analysis
is a technique to semi-quantitatively
define the zonations associated
with some copper deposits.
The method is based on the
partial dissolution behaviour
displayed by the prevalent
copper minerals to solutions
containing sulphuric acid
and sodium cyanide. Results
from sequential analyses can
theoretically determine the
amounts of leachable oxide
minerals, leachable secondary
sulphide minerals, and primary
copper minerals, respectively.
---------------------------- -----------------------------------------------
"sphalerite" Sphalerite is a zinc sulphide
in crystalline form but almost
always contains variable iron,
with formula (Zn,Fe)S. It
can have a yellowish to honey
brown or black colour.
---------------------------- -----------------------------------------------
"supergene" Supergene ore processes occur
near surface, and form deposits
of secondary minerals, such
as malachite, azurite, chalcocite,
covellite, digenite, etc.
---------------------------- -----------------------------------------------
"surface rock chip samples" Rock chip samples approximately
2kg in size that are typically
collected from surface outcrops
exposed along rivers and mountain
ridgelines.
---------------------------- -----------------------------------------------
"veins" A vein is a sheet-like or
anastomosing fracture that
has been infilled with mineral
ore (chalcopyrite, covellite
etc) or mineral gangue (quartz,
calcite etc) material, within
a rock. Veins form when minerals
carried by an aqueous solution
within the rock mass are deposited
through precipitation and
infill or coat the fracture
faces.
---------------------------- -----------------------------------------------
"volcanics" Volcanic rock such as andesite
or basalt that is formed from
magma erupted from a volcano,
or hot clastic material that
erupts from a volcano and
is deposited as volcaniclastic
or pyroclastics.
---------------------------- -----------------------------------------------
This information is provided by RNS
The company news service from the London Stock Exchange
END
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May 16, 2018 02:00 ET (06:00 GMT)
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