Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]

Share Name	Share Symbol	Market	Type
Transportadora De Gas Del Sur SA	NYSE:TGS	NYSE	Common Stock

	Price Change	% Change	Share Price	High Price	Low Price	Open Price	Shares Traded	Last Trade
	0.53	1.88%	28.75	28.8979	28.24	28.31	43,753	22:00:00

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

_____________

FORM 6-K

Report of Foreign Issuer

Pursuant to Rule 13a-16 or 15d-16 of

the Securities and Exchange Act of 1934

For May 13, 2024

Commission file number: 1-13.396

Transportadora de Gas del Sur S.A.

Cecilia Grierson 355, Twenty Sixth Floor

1107 Capital Federal

Argentina

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F X Form 40-F

Indicate by check mark if registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): __

Indicate by check mark if registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): __

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to the Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes No X

If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b):

TRANSPORTADORA DE GAS DEL SUR S.A.

FINANCIAL STATEMENTS AS OF MARCH 31, 2024 AND 2023

INDEX

01.ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS FOR THE THREE-MONTH PERIOD ENDED MARCH 31, 2024

02.CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

Statements of comprehensive income

Statements of financial position

Statements of changes in equity

Statements of cash flows

Notes to the condensed interim consolidated financial statements

03.INDEPENDENT AUDITORS´LIMITED REVIEW REPORT

TRANSPORTADORA DE GAS DEL SUR S.A.

ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS FOR THE THREE-MONTH PERIOD ENDED MARCH 31, 2024 ⁽¹⁾

The following discussion of the financial condition and results of operations of the Company should be read in conjunction with the Company's consolidated financial statements as of March 31, 2024 and December 31, 2023, and for the three-month periods ended March 31, 2024 and 2023. These condensed interim consolidated financial statements have been prepared in accordance with and complied with IAS 34 issued by the International Accounting Standards Board (“IASB”) adopted by the Comisión Nacional de Valores ("CNV") through the provisions of Title IV, Chapter I, Section I, Article 1 – B.1 of the Rules of the CNV ("New Text 2013" or "NT 2013").

The condensed interim consolidated financial statements of the Company for the three-month periods ended March 31, 2024, 2023, 2022, 2021 and 2020 have been subject to a limited review performed jointly by Price Waterhouse & Co. S.R.L. and Pistrelli, Henry Martin and Asociados S.R.L.

Effects of inflation

On December 3, 2018, Law No. 27,468 was enacted, sanctioned on November 15, 2018, by the National Argentine Congress. Among other measures, this law abolishes Presidential Decree No. 1,269/02 —amended by Presidential Decree No. 664/2003 — through which the controlling entities (among them the CNV) had been instructed not to accept inflation adjusted financial statements. On December 26, 2018, the CNV issued Resolution No. 777/2018, by virtue of which it instructs companies that offer their shares to the public to apply the financial statements restatement method to a stable currency in line with the provisions of IAS 29 “Financial Reporting in Hyperinflationary Economies”.

In accordance with such standards, the restatement of financial statements was restarted as from July 1, 2018. In line with the restatement method, non-currency assets and liabilities are restated by an overall price index issued by the Argentine Federation of Professional Councils in Economic Sciences (“Argentine Federation”) since their acquisition date or last inflation adjustment (March 1, 2003).

Likewise, comparative information included in the financial statements has also been restated, but this fact has not modified the decisions based on the financial information corresponding to those fiscal years.

For further information, see “Note 4. Significant Accounting Policies – d) Restatement to current currency – Comparative Information” to the consolidated financial statements as of December 31, 2023.

Rounding

Certain figures included in this press release have been rounded for ease of presentation. Percentage figures included in this press release have not, in all cases, been calculated on the basis of such rounded figures but on the basis of such amounts prior to rounding. For this reason, percentage amounts in this report may vary from those obtained by performing the same calculations using the figures in our Financial Statements. Certain numerical figures shown as totals in some tables may not be an arithmetic aggregation of the figures that preceded them due to rounding.

⁽⁰) Not covered by Auditor’s Limited Review of Interim Financial Information, except for items 3, 4, 5 and 7.

1.Results of operations

The following table presents a summary of the consolidated results of operations for the three-month periods ended March 31, 2024 (“3M2024”) and March 31, 2023 (“3M2023”):

Activities of the Company in 3M2024 and 3M2023

Revenues

Revenues for 3M2024 increased by Ps. 10,739 million compared to 3M2023, mainly due to the increase in revenues from Midstream and Production and Commercialization of Liquids business segments.

Natural Gas Transportation

During 3M2024 revenues from the Natural Gas Transportation business segment accounted for 11% of tgs total revenues (20% for 3M2023). 75% of total revenues in this segment corresponded to firm contracted capacity services (77% for 3M2023).

Revenues from the Natural Gas Transportation segment during 3M2024 reached Ps. 20,934 million (Ps. 36,298 million in 3M2023). The decrease of Ps. 15,364 million is mainly due to the lack of nominal tariff adjustment, and the negative impact that the evolution of inflation has on them.

On March 26, 2024, tgs entered the 2024’s Transitional Agreement with the ENARGAS, which provides for a transitional adjustment of 675% in natural gas transportation tariffs. This tariff increase came into effect on April 3, 2024, after Resolution No. 112/2024 (the “Resolution 112”) issued by the ENARGAS was published in the Official Gazette. According to Resolution 112, as from May 2024 and until the RTI process is completed, tariffs will be adjusted monthly by a composite index (the "Transitional Adjustment Index") as follows:

- 47% by the Wage Index - Registered Private Sector published by INDEC,

- 27.2% Wholesale Price Index (“WPI”), and

- 25.8% Construction Cost Index in Greater Buenos Aires - Materials chapter published by INDEC.

In addition, Resolution 112 provides that during 2024 we must execute an investment plan in the amount of Ps. 27,690 million (adjustable by the Transitional Adjustment Index).

As of the date of issuance of this Review, ENARGAS has not issued the resolution including the monthly tariff increase mentioned above.

Liquids Production and Commercialization

During 3M2024, net sales revenues corresponding to this business segment represented 67% of total revenues (66% for 3M2023).

Revenues derived from the Liquid Production and Commercialization segment amounted to Ps. 128,149 million in 3M2024 (Ps 8,616 million higher than those recorded in 3M2023). This positive effect was mainly due to the positive variation in the real exchange rate and the improvements in the premiums corresponding to the export of propane and butane. These effects were partially offset by lower volumes sold and the drop in international prices.

Total volumes dispatched registered a decrease of 8% or 23,629 tons compared to 3M2023.

Midstream

Revenues derived from the Midstream segment increased by Ps. 17,488 million in 3M2024 compared to the same period of 2023. This increase is due to higher revenues corresponding to: (i) natural gas transportation and conditioning services in Vaca Muerta, (ii) the positive variation in the real exchange rate and (iii) the operation and maintenance of the Néstor Kirchner gas pipeline and services related to the Transpor.Ar program.

Cost of sales and administrative and selling expenses

Cost of sales, administrative and selling expenses corresponding to 3M2024 decrease by Ps. 563 million. This variation is mainly due to the decrease in the cost of natural gas processed at the Cerri Complex (mainly due to a decrease in the price, measured in constant Argentine pesos). This effect was partially offset by the increase in third-parties fees and services, repair and maintenance expenses and labor costs.

The following table shows the main components of cost of sales, administrative and selling expenses, and comparisons for 3M2024 and 3M2023:

Net financial results

In 3M2024, the financial results experienced a positive effect of Ps. 34,247 million with respect to same period of 2023. The breakdown of net financial results is as follows:

This positive variation is mainly due to the lower negative foreign exchange loss, net, and the higher positive financial results recorded by financial assets due to the increase in fund placements. These effects were partially offset by the higher loss on net monetary position.

2.Liquidity

The Company’s primary sources and application of funds during 3M2024 and 3M2023 are shown in the table below:

During 3M2024 the net variation in cash and cash equivalents was positive by Ps. 32,550 million.

Cash flow from operations amounted to Ps. 48,194 million. This cash flow was Ps. 49,887 million lower than in 3M2023 due to lower working capital and higher interest payments. These effects were partially offset by the increase in operating profit.

Cash flows used in investing activities amounted to (Ps. 10,724) million, Ps. 41,714 million lower than funds used in 3M2023 due to higher payments for acquisitions of PPE in connection with the expansion of the Tratayén Plant in Vaca Muerta and higher collections of placements of funds not considered cash equivalents according to IFRS Accounting Standards.

Finally, cash flows used in financial activities during 3M2024 amounted to Ps. 4,919 million. During 3M2024, the Company took out bank loans for Ps. 21,615 million and made cancellations of Ps. 26,371 million.

3.Consolidated Financial Position Summary

Summary of the consolidated financial position information as of March 31, 2024, and December 31, 2023, 2022, 2021 and 2020:

4.Consolidated Comprehensive Income Summary

Summary of the consolidated comprehensive income information for the three-month periods ended March 31, 2024, 2023, 2022, 2021 and 2020:

5.Consolidated Cash Flow Summary

Summary of the consolidated cash flow information for the three-month periods ended March 31, 2024, 2023, 2022, 2021 and 2020:

6.Comparative Statistical Data (Physical units)

7.Comparative Ratios

8.TGS share market value in Buenos Aires Stock Exchange at closing of last business day (in Argentine Pesos per share)

	2024	2023	2022	2021	2020
January	3,798.35	830.00	225.00	151.65	104.30
February	2,779.95	834.55	232.60	138.85	93.15
March	3,279.35	824.75	262.80	139.10	72.15
April		1,037.90	262.35	139.35	101.80
May		1,201.15	282.15	152.20	121.50
June		1,414.60	260.50	156.65	114.10
July		1,362.95	349.65	159.05	141.35
August		1,980.00	393.50	193.25	123.85
September		1,700.00	462.50	192.00	116.60
October		1,751.70	536.75	217.30	152.95
November		2,410.00	650.00	184.55	162.50
December		2,956.15	812.90	181.10	153.15

9.Outlook

The future of natural gas as an essential fuel for the country's energy matrix is consolidated year after year, which will make Argentina a sustainable country with high growth. We have consolidated ourselves as an integrated service provider in the hydrocarbon industry.

Our strategy aims to position ourselves in a leading role, carrying out vital undertakings for the future of the country, thus consolidating the growth strategy with a leap of magnitude. With this objective, we are adopting an innovative vision, seeking new business opportunities for our clients with a focus on Vaca Muerta.

Continuing our growth plan in the area, we hope for the winter of 2024, the culmination of the expansion of the Tratayén conditioning plant through the installation of 2 conditioning modules, each with a capacity of 6.6 million m3/day, whose investment is estimated at US$ 320 million.

The current economic situation and the tariff review process faced by the authorities implies that we must continue to generate valid and constructive channels of dialogue that allow us to manage a profitable and efficient natural gas transportation business in accordance with the country's energy development, considering the needs of the internal and external demands and of our stakeholders.

In this framework, we will be attentive to the talks with the national authorities in order to advance in the concretion of the new RTI process.

In the Liquids Production and Commercialization Segment, the strategy will be aimed at optimizing the production mix that allows prioritizing those products and distribution channels that provide higher margins, and to maximizing access to the RTP at reasonable costs. For this, it will be very important to be efficient in the management of our assets, ensuring a coordinated, safe and efficient operation.

In financial terms, and given the aforementioned facts, we will continue to prudently manage our funds in order to preserve our shareholders´ value given the volatile macroeconomic context in which our activities will be carried out. Given the maturity, in May 2025, of the notes for US$ 500 million, we will focus on analyzing the alternatives that the capital market offers us to be able to carry out their refinancing.

As regards their daily operations, tgs will remain committed to continuous improvement of each of its processes to optimize the use of the resources and to reduce operating costs. To this end, the Company will carry out actions aimed at the reduction of cost without affecting the reliability and availability of the pipeline system. We will continue with the implementation of various actions, such as the standardization and systematization of risk management in pipelines, compressor stations and processing facilities. Finally, we will deepen training initiatives for the staff for technical and management training resources.

Autonomous City of Buenos Aires, May 6, 2024.

Horacio Turri

Chairman of the Board of Directors

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

CONDENSED INTERIM CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

FOR THE THREE-MONTH PERIODS ENDED MARCH 31, 2024 AND 2023

(Stated in thousands of pesos as described in Note 3 except for basic and diluted earnings per share)

Horacio Turri

Chairman of the Board of Directors

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

CONDENSED INTERIM CONSOLIDATED STATEMENTS OF FINANCIAL POSITION

AS OF MARCH 31, 2024 AND DECEMBER 31, 2023

(Stated in thousands of pesos as described in Note 3)

Horacio Turri

Chairman of the Board of Directors

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

CONDENSED INTERIM CONSOLIDATED STATEMENT OF CHANGES IN EQUITY

FOR THE THREE-MONTH PERIODS ENDED MARCH 31, 2024 AND 2023

(Stated in thousands of pesos as described in Note 3)

______________________________________________________________________________________________________________________________________________________________________________

Horacio Turri

Chairman of the Board of Directors

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

CONDENSED INTERIM CONSOLIDATED STATEMENTS OF CASH FLOWS

FOR THE THREE-MONTH PERIODS ENDED MARCH 31, 2024 AND 2023

(Stated in thousands of pesos as described in Note 3)

_____________________________________________________________________________________________________

Horacio Turri

Chairman of the Board of Directors

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

_____________________________________________________________________________________________________

1.GENERAL INFORMATION

Business Overview

Transportadora de Gas del Sur S.A. (“tgs” or the “Company”) is one of the companies created as a result of the privatization of Gas del Estado S.E. (“GdE”). tgs commenced operations on December 28, 1992 and it is mainly engaged in the Transportation of Natural Gas, and Production and Commercialization of natural gas Liquids (“Liquids”). TGS’s pipeline system connects major natural gas fields in southern and western Argentina with natural gas distributors and industries in those areas and in the greater Buenos Aires area. The natural gas transportation license to operate this system was exclusively granted to TGS for a period of thirty-five years (“the License”). TGS is entitled to a one-time extension of ten years provided that it has essentially met the obligations imposed by the License and by Ente Nacional Regulador del Gas (National Gas Regulatory Body or “ENARGAS”). The General Cerri Gas Processing Complex (the “Cerri Complex”), where TGS processes natural gas to obtain liquids, was transferred from GdE along with the gas transmission assets. TGS also provides midstream services, which mainly consist of gas treatment, removal of impurities from the natural gas stream, gas compression, wellhead gas gathering and pipeline construction, operation and maintenance services. In addition, telecommunications services are provided through the subsidiary Telcosur S.A. (“Telcosur”). These services consist of data transmission services through a network of terrestrial and digital radio relay.

Subsequently, the corporate purpose of the Company was modified in order to incorporate the development of complementary activities, incidental, linked and / or derived from natural gas transportation, such as the generation and commercialization of electric power and the provision of other services for the hydrocarbon sector in general.

Major Shareholders

tgs´ controlling shareholder Compañía de Inversiones de Energía S.A. (“CIESA”), holds 51% of the common stock of the company, the National Social Security Administration (“ANSES”) holds 24% and the remaining 25% is held by the investing public (tgs has 5.25% of the shares in the portfolio).

CIESA is under joint control of: Pampa Energía S.A. (“Pampa Energía”) with 50% and Grupo Inversor Petroquímica S.L. (“GIP”) and PCT L.L.C. with the remaining 50%.

The following table shows the organizational structure, shareholders and related parties of tgs as of March 31, 2024:

Detailed data reflecting subsidiary control as of March 31, 2024, is as follows:


Company	Incorporation country	% of interest	Closing date	Main activity

Telcosur	Argentina	99.98	December 31	Telecommunication Services
CTG	Argentina	100	December 31	Electricity related services

For consolidation purposes for the three-month period ended March 31, 2024, the financial statements of Telcosur have been used at those dates. The subsidiary CTG does not record operations or significant assets and liabilities as of March 31, 2024.

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

_____________________________________________________________________________________________________

As of March 31, 2023, the Company held a direct and indirect shareholding of 100% in TGSLatam Energía S.A. company that during the first three months of that year did not register operations.

On June 29, 2023, TGSLatam Energía S.A. was dissolved, and its dissolution, liquidation and cancellation of registration was registered on July 3, 2023. Therefore, as of March 31, 2024, these condensed interim consolidated financial statements do not contain the consolidation of this company. As of March 31, 2023, the Company has used the financial statements of TGSLatam as of that date.

Economic context

The Company operates in a complex economic context whose main variables have recently had strong volatility as a result of political and economic events at the national level.

Although after the new government took office in December 2023, certain restrictions were eased and other changes are expected, the context of volatility and uncertainty continues as of the date of issuance of these interim condensed consolidated financial statements. Government measures already implemented, or those that may be implemented in the future, regarding restrictions for the payment of imports of goods and services from abroad, could eventually limit tgs' ability to access inputs, capital goods and services. necessary for its operations. Furthermore, the application of existing foreign exchange regulations remains uncertain and the scope and timing of upcoming changes are unknown.

On April 30, 2024, the Chamber of Deputies approved the Bases Law (“Ley Bases”) and the fiscal package sent by the government to Congress which, among other issues, includes:

·Modifications in the calculation of income tax for individuals, in the Simplified Tax Regime for Small Taxpayers, personal assets and money laundering.

·The privatization of 9 companies is authorized.

·A Large Investment Incentive Regime (RIGI) for projects that involve investments equal to or greater than US$200 million.

·The creation of a proportional retirement benefit for those people who, upon reaching retirement age, do not reach the necessary years of pension contributions.

·A labor reform.

As of the date of issuance of these condensed interim consolidated financial statements, the Bases Law and the fiscal package mentioned above are pending approval by the Senate.

The Company's Management permanently monitors the evolution of the situations that affect its business, to determine the possible actions to be taken and to identify the possible impacts on its financial situation and the results of its operations. The Company's financial statements must be read considering all these circumstances. Likewise, the Company cannot guarantee that the aforementioned macroeconomic difficulties or the adoption of new measures by the Argentine Government to control inflation may affect its operations and financial situation.

2.CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

tgs presents its Condensed Interim Consolidated Financial Statements for the three-month periods ended March 31, 2024 and 2023 preceding its Interim Condensed Separate Financial Statements in accordance with Title IV, Chapter I, Section I, article 1.b.1 of CNV´s regulations requiring the use of International Accounting Standard 34 (“IAS 34”) issued by the International Accounting Standards Board (“IASB”) adopted by the CNV through NT 2013 (the “Rules”).

In these Condensed Interim Consolidated Financial Statements, tgs and its consolidated subsidiaries (CTG and Telcosur), are jointly referred to as “tgs” or “the Company”.

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

_____________________________________________________________________________________________________

These Condensed Interim Consolidated Financial Statements, which were approved and authorized for issuance by the Board of Directors on May 6, 2024, do not include all the information and disclosures required for annual Financial Statements, and should be read in conjunction with tgs’ annual Financial Statements as of December 31, 2023, issued on March 4, 2024.

3.BASIS OF PRESENTATION

The CNV, in Title IV, Chapter III, Article 1 of the Rules has provided that listed companies must submit their condensed consolidated financial statements by applying Technical Resolution No. 26 (modified by Technical Resolution No. 29) of the Argentine Federation of Professional Councils of Economic Sciences ("FACPCE"), which adopts the International Financial Reporting Standards ("IFRS Accounting Standards") issued by the IASB, its amendments and circulars for the adoption of IFRS Accounting Standards that the FACPCE dictates in accordance with the provisions of that Technical Resolution.

The Company has prepared these Condensed Interim Consolidated Financial Statements in accordance with the accounting framework established by the CNV, which is based on the application of IFRS Accounting Standards, particularly IAS 34.

The subsidiaries that reflect tgs's corporate group as of March 31, 2024 are Telcosur and CTG.

The subsidiaries that reflected tgs's corporate group as of March 31, 2023 are Telcosur, CTG and TGSLatam.

For consolidation purposes for the three-month periods ended March 31, 2024 and 2023, Telcosur's financial statements have been used at those dates. The controlled company CTG does not record operations or significant assets and liabilities as of March 31, 2024.

The condensed interim consolidated financial statements for the three-month periods ended March 31, 2024 and 2023 have not been audited. The Management of the Company estimates that they include all the necessary adjustments to reasonably present the results of each period in accordance with the accounting framework applied. The results of the three-month periods ended March 31, 2024 and 2023, do not necessarily reflect the proportion of the results of the Company for the full fiscal year.

Functional and presentation currency

The condensed interim consolidated financial statements are stated in thousands of Argentine pesos (“Ps.”), the functional currency of the Company and its subsidiaries.

Restatement to current currency

The Condensed Interim Consolidated Financial Statements as of March 31, 2024, including comparative figures, have been restated to take into account changes in the general purchasing power of the Company's functional currency in accordance with IAS 29 "Financial information in hyperinflationary economies” ("IAS 29") and in General Resolution No. 777/2018 of the CNV, using the BCRA's Market Expectations Survey for the last month of the period, since, at the date of closing the Company's accounting books, the INDEC index was not yet available. As a result, the financial statements are expressed in the unit of measurement current at the end of the reporting period.

The variation in the consumer price index (“CPI”) for the restatement of these Condensed Interim Consolidated Financial Statements was estimated at 51.62% and 21.7% for the three-month periods ended March 31, 2024 and 2023, respectively.

Information comparability

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

_____________________________________________________________________________________________________

The balances as of December 31, 2023 and March 31, 2023 that are disclosed for comparative purposes were restated in accordance with IAS 29, as mentioned above.

4.SIGNIFICANT ACCOUNTING POLICIES

The accounting policies applied to these Condensed Interim Consolidated Financial Statements are consistent with those used in the financial statements for the last financial year prepared under IFRS Accounting Standards, which ended on December 31, 2023.

New accounting policies, amendments and interpretations issued by the IASB that have been adopted by the Company.

The Company has applied the following standards and/or amendments for the first time as of January 1, 2024:

• Amendments to IAS 7 and IFRS Accounting Standard 7 – Supplier finance arrangements.

• Amendments to IFRS Accounting Standard 16 – Modifications to sales and leaseback transactions.

• Amendments to IAS 1 – Classification of liabilities as current and non-current.

The new accounting standards, amendments and interpretations issued by the IASB that became effective as of January 1, 2024, have not had an impact on the Company's condensed interim consolidated financial statements.

5.FINANCIAL RISK MANAGEMENT

The Company’s activities and the market in which it operates expose it to a series of financial risks: market risk (including foreign exchange risk, interest rate risk, and commodity price risk), credit risk and liquidity risk.

There were no significant changes since the last annual closing in the risk management policies.

Due to the main impacts of the described situation detailed in Note 1 to these condensed interim consolidated financial statements, the Company has implemented a series of measures that will mitigate its impact. In this sense, the Company's Management constantly monitors the evolution of the situations that affect its business, to determine the possible actions to be taken and to identify the possible impacts on its equity and financial position. The Company's financial statements should be read under the light of these circumstances.

6.CRITICAL ACCOUNTING ESTIMATES

The preparation of the Condensed Interim Consolidated Financial Statements in accordance with generally accepted accounting principles requires management to make accounting estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements, as well as the reported amounts of revenues and expenses during the reporting period.

These estimates require management to make difficult, subjective or complex judgments and estimates about matters that are inherently uncertain. Management bases its estimates on various factors, including past trends, expectation of future events regarding the outcome of events and results and other assumptions that it believes are reasonable.

As mentioned in Note 17.a. to the Consolidated Financial Statements as of December 31, 2023, the Company is jointly carrying out a new Comprehensive Tariff Review (“RTI”) process

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

_____________________________________________________________________________________________________

together with ENARGAS, which will culminate once the necessary regulations are issued to grant a tariff framework in accordance to the license with which it operates.

In the Natural Gas Transportation segment, the Company considered scenarios taking into account the transitional tariff regime and the new estimates of macroeconomic variables. Likewise, the Company updated its assessment of impairment indicators in accordance with IAS 36 as of March 31, 2024.

The conclusion of said evaluation was that no new factors were identified that negatively affect the premises underlying the recoverable value of the assets included within PPE, with respect to the last evaluation carried out, as of December 31, 2023.

Based on the above, the Company has determined that it is not necessary to record an additional impairment charge or a reversal to the existing one.

7.SUPPLEMENTAL CASH FLOW INFORMATION

For purposes of the condensed interim consolidated statement of cash flows, the Company considers all highly liquid temporary investments with an original maturity of three months or less at the time of purchase to be cash equivalents. The cash flow statement has been prepared using the indirect method, which requires a series of adjustments to reconcile net income for the period to net cash flows from operating activities.

Non-cash investing and financing activities for the three-month periods ended March 31, 2024 and 2023 are presented below:

Note 14 includes a reconciliation between the opening and closing balance of the financial liabilities arising from financing activities.

8.CONSOLIDATED BUSINESS SEGMENT INFORMATION

IFRS Accounting Standard 8 “Operating Segments” (“IFRS 8”) requires an entity to report financial and descriptive information about its reportable segments, which are operating segments or aggregations of operating segments that meet specified criteria. Operating segments are components of an entity about which separate financial information is available that is evaluated regularly by the chief operating decision maker (“CODM”) in deciding how to allocate resources and in assessing performance. The Company’s CODM is the Board of Directors.

The Company analyzes its businesses into four segments: (i) Natural Gas Transportation Services, subject to ENARGAS regulations, (ii) Liquids Production and Commercialization, (iii) Midstream, and (iv) Telecommunications. These last three business segments are not regulated by ENARGAS. Liquids Production and Commercialization segment is regulated by the SE.

Detailed information on each business segment for the three-month periods ended March 31, 2024 and 2023 is disclosed below:

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

_____________________________________________________________________________________________________

The breakdown of revenues from sales of goods and services by market and opportunity for the three-month periods ended March 31, 2024 and 2023 is as follows:

9.SUMMARY OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME ITEMS

a)Other receivables

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

_____________________________________________________________________________________________________

b)Trade receivables

The movement of the allowance for doubtful accounts is as follows:

c)Cash and cash equivalents

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

_____________________________________________________________________________________________________

d)Contract Liabilities

e)Other payables

f)Taxes payables

g)Trade payables

h)Revenues and others

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

_____________________________________________________________________________________________________

i)Net cost of sales

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

j)Expenses by nature – Information required under art. 64 paragraph I, clause B) Commercial Companies Law for the three-month periods ended March 31, 2024 and 2023

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

k)Net financial results

l)Other operating results, net

m) Financial assets at amortized cost

n)Financial assets at fair value through profit or loss

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

o)Payroll and social security taxes payable

10.INVESTMENTS IN ASSOCIATES

11.JOINT ARRANGEMENTS

The Company has a stake in UT SACDE, for more information, see “Note 23. – Associates and Joint Agreement”. Given the degree of progress of the works carried out by the UT, as of March 31, 2024 and December 31, 2023, it does not record significant balances or operations.

12.SHARE OF (LOSS) / PROFIT FROM ASSOCIATES

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

13.PROPERTY, PLANT AND EQUIPMENT

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

14.LOANS

Short-term and long-term loans as of March 31, 2024 and December 31, 2023 comprise the following:

Loans are totally denominated in foreign currency different than the Argentine peso.

The activity of the loans as of March 31, 2024 and 2023 is the following:

During the three-month period ended March 31, 2024, the Company incurred new bank loans of Ps. 21,615,478. Additionally, bank loans cancellations were made for Ps. 26,371,487.

In January 2023, the Company entered into a new lease liability for Ps. 2,728,554. It is denominated in US dollars, payable in fixed monthly installments until December 2027.

On October 11, 2023, CNV approved the extension of the maximum amount of the Program from US$ 1,200 million to US$ 2,000 million and the extension of the validity period were approved. of the Program for an additional 5 years from the expiration of the term, with the new expiration of the program being January 3, 2029.

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

The maturities of current and non-current financial debt, net of issuance costs, as of March 31, 2024 are as follows:

As of the date of issuance of these Interim Condensed Consolidated Financial Statements, the Company and its controlled company are in compliance with the covenants established in all of their financial debt.

15.INCOME TAX AND DEFERRED TAX

To determine the deferred and current income tax expense charge as of March 31, 2024, the Company has applied the current progressive rate as stipulated in current regulations.

The following table includes the income tax expense charged to the statement of comprehensive income in the three-month periods ended March 31, 2024 and 2023:

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

The composition of the net deferred tax liabilities as of March 31, 2024 and December 31, 2023, is as follows:

16.PROVISIONS

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

17.FINANCIAL INSTRUMENTS BY CATEGORY AND HIERARCHY

17.1 Financial instrument categories

There have been no significant changes regarding the accounting policies for the categorization of financial instruments to the policies disclosed in the financial statements as of December 31, 2023.

The categories of financial assets and liabilities as of March 31, 2024 and December 31, 2023 are as follows:

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

17.2 Fair value measurement hierarchy and estimates

According to IFRS Accounting Standard 13, the fair value hierarchy introduces three levels of inputs based on the lowest level of input significant to the overall fair value. These levels are:

·Level 1: includes financial assets and liabilities whose fair values are estimated using quoted prices (unadjusted) in active markets for identical assets and liabilities. The instruments included in this level primarily include balances in mutual funds and public or private bonds listed on the Bolsas y Mercados Argentinos S.A. (“BYMA”).

·Level 2: includes financial assets and liabilities whose fair value is estimated using different assumptions quoted prices included within Level 1 that are observable for the asset or liability, either directly (i.e. as prices) or indirectly (for example, derived from prices).

·Level 3: includes financial instruments for which the assumptions used in estimating fair value are not based on observable market information.

The table below shows different assets at their fair value classified by hierarchy as of March 31, 2024:

The fair value amount of the financial assets 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.

As of March 31, 2024, the carrying amount of certain financial instruments used by the Company including cash, cash equivalents, other investments, receivables, payables and short-term loans are representative of fair value.

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

The estimated fair value of Non-current loans is estimated based on quoted market prices. The following table reflects the carrying amount and estimated fair value of the 2018 Notes at March 31, 2024, based on their quoted market price:

18.ASSETS AND LIABILITIES IN FOREIGN CURRENCY

Balances in foreign currencies as of March 31, 2024 and December 31, 2023 are detailed below:

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

19.REGULATORY FRAMEWORK

The main regulatory issues are described in Note 17 to the annual consolidated financial statements as of December 31, 2023. As of the date of issuance of these Interim Condensed Consolidated Financial Statements, there were no additional developments except for the following:

Natural gas transportation transitional tariff increase

As a result of the public hearing hold on January 8, 2024, on March 26, 2024, tgs entered the 2024’s Transitional Agreement with the ENARGAS, which provides for a transitional 675% increase in natural gas transportation tariffs. This tariff increase came into effect on April 3, 2024, after Resolution No. 112/2024 (the “Resolution 112”) issued by ENARGAS was published in the Official Gazette. According to Resolution 112, as from May 2024 and until the RTI process is completed, tariffs are adjusted monthly according to the following formula (the "Transitional Adjustment Index"):

- 47.0% adjusted by the Wage Index - Registered Private Sector published by INDEC

- 27.2% adjusted by the Wholesale Price Index (“WPI”)

- 25.8% adjusted by the Construction Cost Index in Greater Buenos Aires - Materials chapter published by INDEC.

To this end, ENARGAS will issue the corresponding monthly resolution adjusting the tariff charts to be applied. As of the date of issuance of these Interim Condensed Consolidated Financial Statements, ENARGAS has not issued the resolution containing the tariff tables contemplating the adjustment for the month of May.

In addition, Resolution 112 provides that during 2024 the Company must execute an investment plan in the amount of Ps. 27,690 million (adjustable by the Transitional Adjustment Index). As of the date of this Condensed Interim Consolidated Financial Statements, the Company has submitted such investment plan, which is in the process of execution.

20.COMMON STOCK AND DIVIDENDS

a)Common stock structure and shares’ public offer

As of March 31, 2024, tgs’ common stock was as follows:

	Amount of common stock, subscribed, issued and authorized for public offer
Common Shares Class (Face value $ 1, 1 vote)	Outstanding shares	Treasury Shares	Common Stock
Class “A”	405,192,594	-	405,192,594
Class “B”	347,568,464	41,734,225	389,302,689
Total	752,761,058	41,734,225	794,495,283

tgs's shares are traded on the BYMA and under the form of the ADSs (registered with the Securities and Exchange Commission (“SEC”) and representing 5 shares each) on the New York Stock Exchange.

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

b)Acquisition of treasury shares

During the three-month period ended March 31, 2024, the Company has not acquired treasury shares.

As of March 31, 2024, the Company holds 41,734,225 treasury shares, representing 5.25% of the total share capital. The acquisition cost of the treasury shares in the market amounted to Ps. 51,581,541 and the Additional paid-up capital amounted to Ps. 14,963,349, which, in accordance with the provisions of Title IV, Chapter III, Article 3.11.c and e of the Rules, restricts the amount of the realized and liquid gains mentioned above that the Company may distribute.

c)Restrictions on distribution of retained earnings

Pursuant to the General Companies Act and CNV Rules, we are required to allocate a legal reserve (“Legal Reserve”) equal to at least 5% of each year’s net income (as long as there are no losses for prior fiscal years pending to be absorbed) until the aggregate amount of such reserve equals 20% of the sum of (i) “common stock nominal value” plus (ii) “inflation adjustment to common stock,” as shown in our consolidated statement of changes in equity.

As mentioned in subsection b of this note, the amounts subject to distribution are restricted up to the acquisition cost of treasury shares and the paid-up capital.

In accordance with current exchange regulations and in order to have access to the exchange market, for the payment of dividends to non-resident shareholders of Argentina, the Company must require the prior approval of the BCRA.

21. LEGAL CLAIMS AND OTHER MATTERS

Between January 1, 2024 and the date of issuance of these Condensed Interim Consolidated Financial Statements, there were no news regarding legal claims and other matters. For more information regarding the claims and legal matters of the Company, see Note 20 “Legal claims and other matters” to the Consolidated Financial Statements as of December 31, 2023.

22. BALANCES AND TRANSACTIONS WITH RELATED COMPANIES

Key management compensation

The accrued amounts corresponding to the compensation of the members of the Board of Directors, the Statutory Committee and the Executive Committee for the three-month periods ended March 31, 2024 and 2023 were Ps. 896,559 and Ps. 967,093, respectively.

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

Balances and transactions with related parties

The detail of significant outstanding balances for transactions entered into by tgs and its related parties as of March 31, 2024 and December 31, 2023 is as follows:

As of March 31, 2024 and December 31, 2023, tgs holds Ps. 10,946,767 and Ps. 15,136,248, respectively, corresponding to dollar-linked notes issued by CT Barragán S.A.. The book value of the notes is disclosed within the caption “Financial assets at fair value through profit or loss”.

The detail of significant transactions with related parties for the three-month periods ended March 31, 2024 and 2023 is as follows:

Three-month period ended March 31, 2024:

Additionally, during the three-months period ended March 31, 2024, the Company received from SACDE Construcciones S.A. construction and site engineering services for Ps. 24,387,509.

Three-month period ended March 31, 2023:

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

23.ASSOCIATES AND JOINT AGREEMENT

Associates with significant influence

Link:

Link was created in February 2001, with the purpose of the operation of a natural gas transportation system, which links TGS’s natural gas transportation system with the Cruz del Sur S.A. pipeline. The connection pipeline extends from Buchanan (Buenos Aires province), located in the high-pressure ring that surrounds the city of Buenos Aires, which is part of TGS’s pipeline system, to Punta Lara. tgs has a 49% shareholding in this company, while Pan American Sur S.A. has a 20.40% shareholding, Shell Argentina S.A. has a 25.50% shareholding and Wintershall Dea Argentina S.A. has a 5.10% shareholding.

TGU:

TGU is a company incorporated in Uruguay. This company rendered operation and maintenance services to Gasoducto Cruz del Sur S.A. and its contract terminated in 2010. TGS holds 49% of its common stock and Pampa Energía holds the remaining 51%.

Joint Agreement

UT:

The Board of Directors of tgs approved the agreement to set up the UT together with SACDE. The objective of the UT is the assembly of pipes for the construction of the project of “Expansion of the System of Transportation and Distribution of Natural Gas” in the Province of Santa Fe, called by National Public Bid No. 452-0004-LPU17 by the MINEM (the “Work”).

On October 27, 2017, tgs – SACDE UT signed the corresponding work contract with the MINEM.

The UT will remain in force until its purpose has been fulfilled, i.e., once the works involved in the Project have been completed and until the end of the guarantee period, set at 18 months from the provisional reception.

As a result of the situation of the economic context and the COVID mentioned in Note 1, the UT sent a letter to Integración Energética Argentina S.A. (“IEASA”), a company currently part of the Ministry of Productive Development, requesting, among other issues, the reestablishment of the economic-financial equation, readjustment of the work schedule, approval of cost redeterminations and price adjustments under the current legal regime.

On July 9, 2021, the UT and IEASA signed a restart order and a restart certificate for the works related to the Work, through which the work schedule was readjusted and IEASA also assumed the commitment to manage and join efforts to guarantee the cash flow in order to avoid new effects on the economic-financial structure of the contract for the Work, which would give rise to new requests -by the UT- for the recomposition of the economic-financial equation of the contract and the schedule of execution of the Work.

24.INFORMATION REQUIRED BY ARTICLE 26 OF SECTION VII CHAPTER IV TITLE II OF CNV RULES

In order to comply with General Resolution No. 629/2014 tgs informs that, as of May 6, 2024, supporting and management documentation related to open tax periods is safeguarded by Bank S.A. at its facilities are located at Ruta Panamericana Km 37.5, Garin, Province of Buenos Aires.

As for commercial books and accounting records, they are situated in the headquarters of the Company in areas that ensure its preservation and inalterability.

English translation of the original prepared in Spanish for publication in Argentina

TRANSPORTADORA DE GAS DEL SUR S.A.

NOTES TO THE CONDENSED INTERIM CONSOLIDATED FINANCIAL STATEMENTS

AS OF MARCH 31, 2024 AND COMPARATIVE INFORMATION

(Stated in thousands of pesos as described in Note 3, unless otherwise stated)

The Company has available in its headquarters to CNV details of the documentation given in safeguard to third parties.

25.SUBSEQUENT EVENTS

There are no other significant subsequent events that occurred between the closing date of the period and the authorization (issuance) of these Interim Condensed Consolidated Financial Statements, other than those already set out above and what is set out below:

Decisions adopted by the Annual Ordinary Shareholders´ Meeting of April 17, 2024 (“The 2024 Shareholders´ Meeting”).

The 2024 Shareholders´ Meeting resolved, among others, the following:

·The increase in the Legal Reserve of Ps. 1,783 million.

·Established a reserve for capital expenditures, acquisition of treasury shares and/or dividends (the “Reserve”) for Ps. 751,449 million; and delegate its total or partial distribution to the Board of Directors, until the Shareholders´ Meeting that considers the Financial Statements as of December 31, 2024, according to the destination, opportunity and amount determined by the same based on what was approved by the Assembly, in accordance with the criteria of prudent administration as established by the applicable regulations, and considering for this purpose the economic-financial situation of the Company and its future prospects.

Horacio Turri

Chairman of the Board of Directors

English translation of the original in Spanish published in Argentina

REPORT ON REVIEW OF INTERIM FINANCIAL INFORMATION

To the Shareholders, President and Directors of

Transportadora de Gas del Sur S.A.

Legal address: Madero Office – Cecilia Grierson 355, 26th floor,

City of Buenos Aires

Tax Code No. 30-65786206-8

IReport on the Financial Statements Introduction

1.We have reviewed the accompanying condensed interim consolidated Financial Statements of Transportadora de Gas del Sur S.A. (hereinafter, “the Company”), which comprise: (a) the consolidated statement of financial position at March 31, 2024, (b) the consolidated statements of comprehensive income, of changes in shareholders’ equity and of cash flows for the three-month period then ended and (c) the selected explanatory notes.

The responsibility of the Company’s Board of Directors for the Financial Statements

2.The Board of Directors of the Company is responsible for the preparation and presentation of the consolidated Financial Statements under International Financing Reporting Standards as approved by the International Accounting Standards Board (IASB) and adopted by the Federación Argentina de Consejos Profesionales de Ciencias Económicas (FACPCE) as professional accounting standards and included by the Comisión Nacional de Valores (CNV) in its regulations, and is therefore responsible for the preparation and presentation of the Financial Statements mentioned in the first paragraph, in accordance with International Accounting Standard 34 Interim Financial Reporting (IAS 34). The Board of Directors is also responsible for such internal control deemed necessary to enable the preparation of the interim financial information free of any significant distortions, whether due to misstatements or irregularities.

Auditors’ Responsibility

3.Our responsibility is to express a conclusion on the Financial Statements mentioned in the first paragraph based on our review, which was conducted in accordance with the International Standard on Review Engagements 2410, Review of Interim Financial Information Performed by the Independent Auditor of the Entity, issued by the International Auditing and Assurance Standards Board (IAASB), adopted as a review standard in Argentina by Technical Pronouncement No. 33 of the FACPCE. Such standards require the auditor to comply with the ethical requirements relevant to the audit of the Company’s annual financial statements. A review of interim financial information consists of making inquiries, primarily of persons responsible for financial and accounting matters, and applying analytical and other review procedures. This review is substantially less in scope than an audit examination conducted in accordance with International Standards on Auditing and, consequently, it does not enable us to obtain assurance that we would become aware of all significant matters that might be identified in an audit. Accordingly, we do not express an audit opinion.

Price Waterhouse & Co. S.R.L.

Firma miembro de PricewaterhouseCoopers

Pistrelli, Henry Martin y Asociados S.R.L.

Miembro de Ernst & Young Global Limited

Bouchard 557, piso 8º

C1106ABG - Ciudad de Buenos Aires

Tel: (54-11) 4850-0000

www.pwc.com/ar

25 de Mayo 487 – C1002ABI

Buenos Aires - Argentina

Tel.: (54-11) 4318-1600

Fax: (54-11) 4510-2220

www.ey.com

Conclusion

4.Based on our review, nothing has come to our attention that makes us believe that the Financial Statements mentioned in the first paragraph have not been prepared, in all material respects, in accordance with IAS 34.

II-Information on other legal and regulatory requirements

In compliance with current regulations, we report that:

a.The condensed interim consolidated Financial Statements of Transportadora de Gas del Sur S.A., as regards those matters that are within our competence, are in compliance with the provisions of the Companies Law and pertinent resolutions of the Comisión Nacional de Valores.

b.The condensed interim Separate Financial Statements of Transportadora de Gas del Sur S.A. stem from accounting records kept in all formal respects in conformity with legal regulations in force.

c.The information included in items 3, 4, 5 and 7 of the Summary of Activity for the interim periods ended March 31, 2024, 2023, 2022, 2021 and 2020, disclosed by the Company with the condensed consolidated financial statements to comply with CNV regulations, stem from the Company’s condensed interim consolidated financial statements at March 31, 2024 attached, and at March 31, 2023, 2022, 2021 and 2020, which are not included in the document attached and based on which we issued our review reports dated May 8, 2023, May 9, 2022, May 7, 2021 and May 8, 2020, respectively; to which we refer and which must be read with this report, restated at the purchasing power of the currency at the closing date of this period.

d.At March 31, 2024, the liabilities for payments and contributions accrued in favor of the Argentine Integrated Social Security System according to the accounting records amounted to $ 648,368,444, none of which was claimable at that date.

City of Buenos Aires, May 06, 2024.

PRICE WATERHOUSE & CO. S.R.L.

(Partner)

PISTRELLI, HENRY MARTIN Y ASOCIADOS S.R.L

(Partner)

Paula Verónica Aniasi

Hernán Crocci

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Transportadora de Gas del Sur S.A.

By:	/s/Alejandro M. Basso
Name:	Alejandro M. Basso
Title:	Chief Financial Officer and Services Vice President

By:	/s/Hernán D. Flores Gómez
Name:	Hernán Diego Flores Gómez
Title:	Legal Affairs Vice President

Date: May 13, 2024

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