REPORT ON REVIEW OF THE CONSOLIDATED CONDENSED INTERIM FINANCIAL STATEMENTS

To the Shareholders, President and Directors of

Pampa Energía S.A.

Legal address: Maipú, 1

Autonomous City of Buenos Aires

Tax Code No.: 30-52655265-9

Report on the consolidated condensed interim financial statements

Introduction

We have reviewed the accompanying consolidated condensed interim financial statements of Pampa Energía S.A. and its subsidiaries (hereinafter "the Group"), which comprise the consolidated statement of financial position as of March 31, 2024, the consolidated statements of comprehensive income, of changes in equity and cash flows for the three-month period ended March 31, 2024, and selected explanatory notes.

Board's responsibility

The Board of Directors of the Company is responsible for the preparation and presentation of the financial statements in accordance with IFRS Accounting Standards, adopted by the Argentine Federation of Professional Councils in Economic Sciences (FACPCE, for its acronym in Spanish) as professional accounting standards and incorporated by the National Securities Commission (CNV, for its acronym in Spanish) to its regulations, as approved by the International Accounting Standards Board (IASB), and therefore is responsible for the preparation and presentation of the consolidated condensed interim financial statements mentioned in the first paragraph, in accordance with International Accounting Standard 34 "Interim Financial Reporting" (IAS 34).

Scope of the review

Our responsibility is to express a conclusion on these consolidated condensed interim financial statements based on our review, which was performed in accordance with the International Standards on Review Engagements ISRE 2410 Review of Interim Financial Information Performed by the Independent Auditor of the entity, adopted as a review standard in Argentina by Technical Pronouncement No. 33 of the FACPCE and approved by the International Auditing and Assurance Standards Board (IAASB). A review of consolidated condensed interim Financial Statements consists of inquiries primarily of Company staff 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., Bouchard 557, floor 8°, C1106ABG - Autonomous City of Buenos Aires

T: +(54.11) 4850.6000, www.pwc.com/ar

Free translation from the original prepared in Spanish for publication in Argentina

Conclusion

Based on our review, nothing has come to our attention that causes us to believe that the consolidated condensed interim Financial Statements mentioned in the first paragraph of this report have not been prepared, in all material respects, in accordance with International Accounting Standard 34.

Report on compliance with current regulations

In accordance with current regulations, we report, in connection with Pampa Energía S.A., that:

a) the consolidated condensed interim financial statements of Pampa Energía S.A. are recorded to the "Inventory and Balance Sheet" book, and complies in what is a matter of our competence, with the provisions of the General Companies Law and in the pertinent resolutions of the National Securities Commission;
b) the individual condensed interim financial statements of Pampa Energía S.A. arise from accounting records kept in their formal aspects in accordance with legal regulations;
c) we have read the Summary of Activity ("Reseña Informativa"), on which, as regards those matters that are within our competence, we have no observations to make;
d) as of March 31, 2024, the debt accrued by Pampa Energía S.A. in favor of the Argentine Integrated Social Security System according to the Company's accounting records and calculations amounted to $ 1,768 million, none of which was claimable at that date.

Autonomous City of Buenos Aires, May 7, 2024

PRICE WATERHOUSE & CO. S.R.L.

(Partner)

Carlos Martín Barbafina

Free translation from the original prepared in Spanish for publication in Argentina

GLOSSARY OF TERMS

The following are not technical definitions, but they are helpful for the reader's understanding of some terms used in the notes to the Unaudited Consolidated Condensed Interim Financial Statements of the Company.

Terms Definitions
ADR American Depositary Receipt
BCBA Buenos Aires Stock Exchange
BNA Banco de la Nación Argentina
BO Official Gazette
CAMMESA Compañía Administradora del Mercado Eléctrico Mayorista S.A.
CB Corporate Bonds
CC Combined Cycle
CIESA Compañía de Inversiones de Energía S.A.
CISA Comercializadora e Inversora S.A.
CITELEC Compañía Inversora en Transmisión Eléctrica Citelec S.A.
CNG Compressed Natural Gas
CNV National Securities Commission of Argentina
CNY Yuan Republic of China
CPB Central Térmica Piedra Buena
-CTB CT Barragán S.A
CTEB Central Térmica Ensenada Barragán
CTG Central Térmica Güemes
CTGEBA Central Térmica Genelba
CTIW Central Térmica Ingeniero White
CTLL Central Térmica Loma de la Lata
CTPP Central Térmica Parque Pilar
-EISA Energía Inversora S.A.
ENARSA Energía Argentina S.A.
ENARGAS National Regulatory Authority of Gas
ENRE National Regulatory Authority of Electricity
GASA Generación Argentina S.A.
Greenwind Greenwind S.A.
HIDISA Hidroeléctrica Diamante S.A.
HINISA Hidroeléctrica Los Nihuiles S.A.
IAS International Accounting Standards
IASB International Accounting Standards Board
IFRS International Financial Reporting Standards
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GLOSSARY OF TERMS: (Continuation)

Terms Definitions
INDEC National Institute of Statistics and Censuses
LGS Argentine Business Organizations Law
MBTU Millon of BTU
MW Megawatt
NYSE New York Stock Exchange
OCP Oleoductos de Crudos Pesados Ltd
OCPSA Oleoductos de Crudos Pesados S.A.
PB18 Pampa Bloque 18 S.A.
PEB Pampa Energía Bolivia S.A.
PECSA Pampa Energía Chile S.p.A.
PEN Federal Executive Branch
PEPE II Pampa Energía II Wind Farm
PEPE III Pampa Energía III Wind Farm
PEPE IV Pampa Energía IV Wind Farm
PESOSA Pampa Energía Soluciones S.A.
PISA Pampa Inversiones S.A.
PIST Point of Entry to the Transportation System
RTI Tariff Structure Review
POSA Petrobras Operaciones S.A.
SACDE Argentine Society of Construction and Strategic Development
SE Secretary of Energy
TGS Transportadora de Gas del Sur S.A.
TGU Transporte y Servicios de Gas en Uruguay S.A.
TJSM Termoeléctrica José de San Martín S.A.
TMB Termoeléctrica Manuel Belgrano S.A.
The Company / Pampa Pampa Energía S.A.
The Group Pampa Energía S.A. and its subsidiaries
Transba Empresa de Transporte de Energía Eléctrica por Distribución Troncal de la Provincia de Buenos Aires Transba S.A.
Transener Compañía de Transporte de Energía Eléctrica en Alta Tensión Transener S.A.
US$ U.S. dollar
UTE Unión Transitoria de Empresas
VAR Vientos de Arauco Renovables S.A.U.
WEM Wholesale Electricity Market
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UNAUDITED CONSOLIDATED CONDENSED INTERIM STATEMENT OF

COMPREHENSIVE INCOME

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

Note 03.31.2024 03.31.2023
Revenue 8 337,376 83,915
Cost of sales 9 (215,183) (50,538)
Gross profit 122,193 33,377
Selling expenses 10.1 (13,580) (3,193)
Administrative expenses 10.2 (34,238) (8,521)
Exploration expenses 10.3 (82) (48)
Other operating income 10.4 28,992 4,859
Other operating expenses 10.4 (26,385) (3,845)
(Impairment) Recovery of impairment of intangible assets and inventories (32) 411
Impairment of financial assets (29,830) (80)
Share of profit from associates and joint ventures 5.2.2 51,416 3,200
Profit from sale of companies´ interest 1,458 -
Operating income 99,912 26,160
Financial income 10.5 1,347 193
Financial costs 10.5 (43,955) (14,711)
Other financial results 10.5 43,805 14,643
Financial results, net 1,197 125
Profit before income tax 101,109 26,285
Income tax 10.6 122,687 643
Profit of the period 223,796 26,928
Other comprehensive income
Items that will not be reclassified to profit or loss
Exchange differences on translation 189,693 76,810
Items that may be reclassified to profit or loss
Exchange differences on translation 82,055 2,485
Other comprehensive income of the period 271,748 79,295
Total comprehensive income of the period 495,544 106,223
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UNAUDITED CONSOLIDATED CONDENSED INTERIM

STATEMENT OF COMPREHENSIVE INCOME (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

Note 03.31.2024 03.31.2023
Total income of the period attributable to:
Owners of the company 223,099 26,918
Non-controlling interest 697 10
223,796 26,928
Total comprehensive income of the period attributable to:
Owners of the Company 494,365 105,983
Non-controlling interest 1,179 240
495,544 106,223
Earnings per share attributable to equity holders of the Company
Total basic and diluted earning per share 13.2 164.04 19.51

The accompanying notes are an integral part of these Unaudited Consolidated Condensed Interim Financial Statements.

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UNAUDITED CONSOLIDATED CONDENSED INTERIM STATEMENT

OF FINANCIAL POSITION

As of March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

Note 03.31.2024 12.31.2023
ASSETS
NON-CURRENT ASSETS
Property, plant and equipment 11.1 2,218,134 2,056,974
Intangible assets 11.2 82,049 77,898
Right-of-use assets 22,319 17,259
Deferred tax asset 11.3 11,537 2
Investments in associates and joint ventures 5.2.2 744,633 542,978
Financial assets at fair value through profit and loss 12.2 29,758 28,040
Other assets 353 349
Trade and other receivables 12.3 17,136 14,524
Total non-current assets 3,125,919 2,738,024
CURRENT ASSETS
Inventories 11.4 188,184 166,023
Financial assets at amortized cost 12.1 89,312 84,749
Financial assets at fair value through profit and loss 12.2 464,380 451,883
Derivative financial instruments 265 250
Trade and other receivables 12.3 428,589 238,294
Cash and cash equivalents 12.4 171,577 137,973
Total current assets 1,342,307 1,079,172
Total assets 4,468,226 3,817,196
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UNAUDITED CONSOLIDATED CONDENSED INTERIM STATEMENT

OF FINANCIAL POSITION (Continuation)

As of March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

Note 03.31.2024 12.31.2023
SHAREHOLDERS´ EQUITY
Share capital 13.1 1,360 1,360
Share capital adjustment 7,126 7,126
Share premium 19,950 19,950
Treasury shares 13.1 4 4
Treasury shares adjustment 21 21
Treasury shares cost (211) (211)
Legal reserve 39,328 37,057
Voluntary reserve 1,228,326 1,157,389
Other reserves 321 711
Other comprehensive income 656,690 539,702
Retained earnings 484,796 180,627
Equity attributable to owners of the company 2,437,711 1,943,736
Non-controlling interest 8,139 6,960
Total equity 2,445,850 1,950,696
LIABILITIES
NON-CURRENT LIABILITIES
Provisions 11.5 150,318 119,863
Income tax and minimum notional income tax provision 11.6 101,955 44,614
Deferred tax liability 11.3 89,390 240,686
Defined benefit plans 19,173 13,172
Borrowings 12.5 1,110,787 989,182
Trade and other payables 12.6 40,313 37,301
Total non-current liabilities 1,511,936 1,444,818
CURRENT LIABILITIES
Provisions 11.5 6,186 4,649
Income tax liability 11.6 14,009 14,026
Tax liabilities 21,848 11,427
Defined benefit plans 2,624 2,695
Salaries and social security payable 13,573 15,537
Derivative financial instruments 110 191
Borrowings 12.5 230,254 181,357
Trade and other payables 12.6 221,836 191,800
Total current liabilities 510,440 421,682
Total liabilities 2,022,376 1,866,500
Total liabilities and equity 4,468,226 3,817,196

The accompanying notes are an integral part of these Unaudited Consolidated Condensed Interim Financial Statements.

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UNAUDITED CONSOLIDATED CONDENSED INTERIM STATEMENT OF CHANGES IN EQUITY

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

Attributable to owners
Equity holders of the company Retained earnings
Share capital Share capital adjustment Share premium Treasury shares Treasury shares adjustment Treasury shares cost Legal reserve Voluntary reserve Other reserves Other comprehensive income Retained earnings (Accumulated losses) Subtotal Non-controlling interest Total equity
Balance as of December 31, 2022 1,380 7,231 19,950 4 21 (2,280) 8,137 171,243 (448) 113,720 84,505 403,463 1,157 404,620
Stock compensation plans - - - - - - - - 126 - - 126 - 126
Profit for the three-month period - - - - - - - - - - 26,918 26,918 10 26,928
Other comprehensive income for the three-month period - - - - - - 1,463 30,786 - 27,580 19,236 79,065 230 79,295
Balance as of march 31, 2023 1,380 7,231 19,950 4 21 (2,280) 9,600 202,029 (322) 141,300 130,659 509,572 1,397 510,969
Legal and voluntary reserve constitution - - - - - - (16) 84,521 - - (84,505) - - -
Capital reduction - - - (20) (105) 2,069 - (1,944) - - - - - -
Treasury shares acquisition (20) (105) - 20 105 (7,138) - - - - - (7,138) - (7,138)
Dividens ditribution - - - - - - - - - - - - (428) (428)
Pampa´s shares sale by a subsidiary - - - - - 7,138 - - - - - 7,138 - 7,138
Stock compensation plans - - - - - - - - 1,033 - - 1,033 - 1,033
Profit for the complementary nine-month period - - - - - - - - - - 7,570 7,570 2,193 9,763
Other comprehensive income for the complementary nine-month period - - - - - - 27,473 872,783 - 398,402 126,903 1,425,561 3,798 1,429,359
Balance as of December 31, 2023 1,360 7,126 19,950 4 21 (211) 37,057 1,157,389 711 539,702 180,627 1,943,736 6,960 1,950,696
Treasury shares acquisition - - - - - - - - (390) - - (390) - (390)
Profit for the three-month period - - - - - - - - - - 223,099 223,099 697 223,796
Other comprehensive income for the three-month period - - - - - - 2,271 70,937 - 116,988 81,070 271,266 482 271,748
Balance as of March 31, 2024 1,360 7,126 19,950 4 21 (211) 39,328 1,228,326 321 656,690 484,796 2,437,711 8,139 2,445,850

The accompanying notes are an integral part of these Unaudited Consolidated Condensed Interim Financial Statements.

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UNAUDITED CONSOLIDATED CONDENSED INTERIM STATEMENT OF CASH FLOWS

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

Note 03.31.2024 03.31.2023
Cash flows from operating activities:
Profit of the period 223,796 26,928
Adjustments to reconcile net profit to cash flows from operating activities 14.1 (74,640) 7,839
Changes in operating assets and liabilities 14.2 (163,370) (2,225)
Net cash (used in) generated by operating activities (14,214) 32,542
Cash flows from investing activities:
Payment for property, plant and equipment acquisitions (109,435) (35,060)
Collections for sales (Payment for) public securities and shares acquisitions, net 56,151 (4,926)
Recovery of mutual funds, net 1,117 2,130
Payment for the acquisition of companies (19,750) -
Payment for right-of-use (4,346) -
Collection for equity interests in companies sales 6,206 55
Collection for joint ventures´ share repurchases 30,135 -
Collections for property, plant and equipment sales - 58
Collections for intangible assets sales - 1,626
Dividend collection 6,955 -
Payment of loans - (217)
Net cash used in investing activities (32,967) (36,334)
Cash flows from financing activities:
Proceeds from borrowings 12.5 112,857 28,783
Payment of borrowings 12.5 (10,959) (11,465)
Payment of borrowings interests 12.5 (34,128) (10,055)
Repurchase and redemption of corporate bonds 12.5 - (586)
Payments of leases (782) (75)
Net cash generated by financing activities 66,988 6,602
Increase in cash and cash equivalents 19,807 2,810
Cash and cash equivalents at the beginning of the year 12.4 137,973 18,757
Exchange and conversion difference generated by cash and cash equivalents 13,797 4,731
Increase in cash and cash equivalents 19,807 2,810
Cash and cash equivalents at the end of the year 12.4 171,577 26,298

The accompanying notes are an integral part of these Unaudited Consolidated Condensed Interim Financial Statements.

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 1: GENERAL INFORMATION

General information of the Company

The Company is a fully integrated power company in Argentina, which mainly participates in the electric energy, oil and gas value chains.

In the generation segment, the Company, directly and through its subsidiaries and joint ventures, has a 5,332 MW installed capacity as of March 31, 2024, which represents approximately 12% of Argentina's installed capacity, and being one of the largest independent generators in the country. Additionally, the Company is currently undergoing a process to expand its installed capacity by an additional 140 MW.

In the oil and gas segment, the Company develops an important activity in gas and oil exploration and production, with operations in 12 production areas and 5 exploratory areas reaching a production level of 11.7 million m3/day of natural gas and 4.3 thousand boe/day of oil in Argentina, during the three-month period ended March 31, 2024. Its main natural gas production blocks are located in the Provinces of Neuquén and Río Negro.

In the petrochemicals segment, operations are located in Argentina, where the Company operates two high-complexity plants producing styrene, synthetic rubber and polystyrene, with a domestic market share ranging between 89% and 100%.

Finally, through the holding and others segment, the Company participates in the electricity transmission and oil and gas transportation businesses. In the electricity transmission business, the Company jointly controls Citelec, which has a controlling interest in Transener, a company engaged in the operation and maintenance of a 22,391 km high-voltage electricity transmission network in Argentina with an 86% share in the Argentine electricity transmission market. In the gas transportation business, the Company jointly controls CIESA, which has a controlling interest in TGS, a company holding a concession for the transportation of natural gas with 9,248 km of gas pipelines in the center, west and south of Argentina, and which is also engaged in the processing and sale of natural gas liquids through the Cerri Complex, located in Bahía Blanca, in the Province of Buenos Aires, in addition to shale gas transportation and conditioning at Vaca Muerta. Besides, the Company owns a 63.74% indirect interest in OCPSA (see Note 5.2.3), licensee company of an oil pipeline in Ecuador that has a transportation capacity of 450 thousand barrels/day. Additionally, the segment includes advisory services provided to related companies.

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 2: REGULATORY FRAMEWORK

2.1 Generation

2.1.1 Supply Agreements with CAMMESA

"TerCONF" call for tenders

On November 24, 2023, pursuant to SE Resolution No. 961/23, tenders for the execution of 300 MW of power capacity at CTGEBA II and the 11-MW expansion of CTEB's CC through CTB were awarded under the TerCONF call launched through SE Resolution No. 621/23 to enter into reliable thermal generation supply agreements with CAMMESA.

However, on December 28, 2023, through Note NO-2023-153876959-APN-SE#MEC, the SE instructed CAMMESA to provisionally suspend the issuance of the commercial documentation corresponding to the payment of the tender guarantee and the monthly payment scheme provided in the call.

Finally, SE Resolution No. 45/24 extended the supply contracts' execution term of projects awarded under SE Resolution No. 961/23 for 60 working days as from April 16, 2024.

2.1.2 Remuneration for sales to the spot market

SE Resolution No. 9/24, dated February 8, 2024, updated the remuneration values for spot generation, providing for a 73.9% increase over the values approved by SE Resolution No. 869/23, effective as from the February 2024 economic transaction.

2.1.3 Modification of CAMMESA's payment priority

Through SE Resolution No. 34/24, the payment order for the WEM's economic transaction was modified, providing that transmission concessionaires would have payment priority over WEM's generating agents.

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 2: (Continuation)

2.2 Oil and Gas

2.2.1 Gas Market

Natural gas for the residential segment and CNG

On March 27, 2024, SE Resolution No. 41/24 was published in the BO, establishing PIST prices to be passed on to end users under the agreements entered into under the GasAr Plan (Executive Order No. 892/20, as amended).

For the purpose of passing on gas prices to tariff schemes of the natural gas through grids distribution utility, ENARGAS will make the dollar per MBTU conversion using a 27.10473 factor, the exchange rate being BNA's average selling exchange rate for the first 15 days of the month immediately preceding the transfer to prices.

Finally, ENARGAS is instructed to: (i) issue the tariff schemes monthly reflecting the exchange rate variation of the prices to be passed on to tariffs; and (ii) provide the necessary measures for the bills to be issued by the gas distribution and sub-distribution utility providers throughout the country to reflect the PIST gas prices.

It is worth highlighting that the PIST value updates increase the amount collectible directly from distributors by the Company, decreasing the price compensation payable by the Federal Government under the GasAr Plan.

2.3 Gas Transportation

Transitional increase in natural gas transportation tariffs

On March 26, 2024, TGS entered into the 2024 transitional agreement ("RTT24") with ENARGAS, which establishes a transitory 675% update in natural gas transportation tariffs. This tariff increase entered into effect on April 3, 2024, following the publication of ENARGAS Resolution No. 112/24 in the BO. Under this Resolution, as from May 2024 and until the completion of the Comprehensive Tariff Review ("RTI"), tariffs will be adjusted monthly by the transitory update index, which is composed of: (i) 47% by the wage index - registered private sector published by INDEC, (ii) 27.2% by the IPIM, and (iii) 25.8% by the construction cost index in Greater Buenos Aires - materials chapter, published by INDEC. To such effect, ENARGAS will issue the corresponding monthly resolution adjusting the applicable tariff schemes. As of the date of issuance of these Consolidated Condensed Interim Financial Statements, ENARGAS has not issued the resolution with the tariff schemes including the May update.

In addition, the resolution provides that during 2024, TGS must execute an investment plan in the amount of $ 27,690 million (adjustable by the transitory update index). As of the date of issuance of these Consolidated Condensed Interim Financial Statements, TGS has submitted this investment plan, which is currently under execution.

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 2: (Continuation)

2.4 Transmission

Tariff situation

Pursuant to ENRE Resolutions No. 104/24 and 105/24, the hourly remuneration values effective as from February 19, 2024 (date of publication in the BO) were determined, establishing a 179.7% and 191.1% update against the values in force as from November 2023 for Transener S.A. and Transba S.A., respectively. Moreover, a tariff update was determined according to a formula based on wage, wholesale and consumer price indexes, to be applied on a monthly basis as from May 2024.

On April 15, 2024, ENRE Resolution No. 223/24 approved the "Program for the tariff review of electric power transmission in 2024", which established the criteria and methodology for the comprehensive tariff review process to be taken into consideration by transmission companies when submitting their tariff proposal applicable as from January 1, 2025.

In this sense, the ENRE has issued a note to formally request the submission of the necessary information to determine the capital base and evaluate the costs and the investment plan. The information on the capital base, historical costs, property, plant and equipment, easements and existing facilities status should be submitted to the ENRE by May 17, 2024, whereas the deadline for submitting the projected information on costs, investments and intended annual remuneration is September 14, 2024.

Due to the liquidity problems caused by delayed collections of the electricity transmission remuneration, Transener S.A. requested the ENRE and the SE, in the exercise of their powers, to take the corresponding measures to guarantee to the transmission company the collection of 100% of the monthly remuneration duly updated and within the terms established in the regulations in force. In this regard, on March 18, 2024, SE Resolution No. 34/24 modified CAMMESA payments' order priority, prioritizing payments to electricity transmission companies (see Note 2.1.3).

As of the date of issuance of these Consolidated Condensed Interim Financial Statements, Transener S.A. has disclosed no delays in the collection of its remuneration.

NOTE 3: BASIS OF PREPARATION

These Consolidated Condensed Interim Financial Statements for the three-month period ended March 31, 2024 have been prepared pursuant to the provisions of IAS 34, "Interim Financial Information", are expressed in million pesos and were approved for their issuance by the Company's Board of Directors on May 7, 2024.

The information included in the Consolidated Condensed Interim Financial Statements is recorded in US dollars, which is the Company's functional currency and, in accordance with CNV requirements, is presented in pesos, the legal currency in Argentina.

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 3: (Continuation)

This consolidated condensed interim financial information had been prepared under the historical cost convention, modified by the measurement of financial assets at fair value through profit or loss and they should be read together with the Consolidated Financial Statements as of December 31, 2023, which have been prepared under IFRS Accounting Standards.

These Consolidated Condensed Interim Financial Statements for the three-month period ended March 31, 2024 have not been audited. The Company's management estimates they include all the necessary adjustments to state fairly the results of operations for the period. The results for the three-month period ended March 31, 2024, does not necessarily reflect in proportion the Company's results for the complete year.

The accounting policies have been consistently applied to all entities within the Group.

Comparative information

The information as of December 31, 2023, and for the three-month period ended March 31, 2023, disclosed for comparative purposes, arises from the Consolidated Financial Statements as of those dates.

Additionally, certain non-significant reclassifications have been made to those Consolidated Financial Statements´ figures to keep the consistency in the presentation with the current period's figures.

NOTE 4: ACCOUNTING POLICIES

The accounting policies applied in these Consolidated Condensed Interim Financial Statements are consistent with those used in the Consolidated Financial Statements for the last fiscal year, which ended on December 31, 2023.

Pursuant to CNV General Resolution No. 972/23, early application of IFRS accounting standards and/or amendments thereto is not allowed, unless specifically allowed at the time of adoption.

As of March 31, 2024, the Company has not applied IFRS accounting standards and/or their amendments early.

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 4: (Continuation)

New accounting standards, amendments and interpretations issued by the IASB effective as of December 31, 2024 and adopted by the Company

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

- IAS 1 - "Presentation of Financial Statements" (as amended in January 2020 and October 2022)
- IFRS 16 - "Leases" (as amended in September 2022)
- IAS 7 - "Statement of Cash Flows" and IFRS 7 - "Financial Instruments - Disclosures" (as amended in May 2023)

The application of the detailed standards and amendments did not have any impact on the results of the operations or the financial position of the Company.

NOTE 5: GROUP STRUCTURE

5.1 Corporate reorganization

On November 6 and 8, 2023, the Boards of Directors of CISA, the Company and GASA, respectively, resolved to instruct their respective managements to analyze a reorganization proceeding under Section 82 and subsequent sections of the Business Organization Law and tax neutrality under Sections 80 and subsequent articles of the Income Tax Law (as amended in 2019), and, if appropriate, draw up the preparatory documentation for the spin-off of CISA's equity and the subsequent merger through absorption of a portion of its spun-off equity into Pampa and the other portion of its spun-off equity into GASA (the 'Reorganization Proceeding').

On March 6, 2024, CISA, the Company and GASA's Board of Directors approved the Reorganization Proceeding and called the respective general ordinary and extraordinary shareholders' meetings to consider such proceeding, which were held on April 29, 2024, resolving to approve it.

The Reorganization Proceeding, effective January 1, 2024, entails benefits for the involved companies and the entire economic group, since it allows for greater resource efficiency in financial information management and reduced costs on account of legal and tax advisory fees.

As of the issuance of these Consolidated Condensed Interim Financial Statements, the Reorganization Proceeding's registration process is underway.

14

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 5: (Continuation)

5.2 Interest in subsidiaries, associates and joint ventures
5.2.1 Subsidiaries information
03.31.2024 12.31.2023
Company Country Main activity Direct and indirect participation % Direct and indirect participation %
Autotrol Renovables S.A. Argentina Generation 100.00% 100.00%
CISA (1) Argentina Trader & investment - 100.00%
Ecuador Pipeline Holdings Limited Gran Cayman Investment 100.00% 100.00%
EISA Uruguay Investment 100.00% 100.00%
Enecor S.A. Argentina Electricity transportation 70.00% 70.00%
Fideicomiso CIESA Argentina Investment 100.00% 100.00%
GASA Argentina Generation & Investment 100.00% 100.00%
HIDISA Argentina Generation 61.00% 61.00%
HINISA Argentina Generation 52.04% 52.04%
Pampa Ecuador Inc Nevis Investment 100.00% 100.00%
PEB Bolivia Investment 100.00% 100.00%
PE Energía Ecuador LTD Gran Cayman Investment 100.00% 100.00%
PECSA Chile Trader 100.00% 100.00%
PESOSA Argentina Trader 100.00% 100.00%
Petrolera San Carlos S.A. Venezuela Oil 100.00% 100.00%
PB18 Ecuador Oil 100.00% 100.00%
PISA Uruguay Investment 100.00% 100.00%
TGU Uruguay Gas transportation 51.00% 51.00%
VAR Argentina Generation 100.00% 100.00%
Vientos Solutions Argentina S.A.U. Argentina Advisory services 100.00% 100.00%

(1) See note 5.1

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 5: (Continuation)

5.2.2 Associates and joint ventures information

The following table presents the main activity and the financial information used for valuation and percentages of participation in associates and joint ventures; unless otherwise indicated, the share capital consists of common shares with one vote per share:

Information about the issuer
Main activity Date Share capital Profit (Loss) of the period Equity Direct and indirect participation %
Associates
TGS (1) Gas transportation 03.31.2024 753 55,932 1,353,321 0.709%
Joint ventures
CIESA (1) Investment 03.31.2024 639 28,419 690,375 50.00%
Citelec (2) Investment 03.31.2024 556 5,435 206,988 50.00%
CTB Generation 03.31.2024 8,558 41,449 471,469 50.00%
OCP Investment 03.31.2024 43 18,004 55,477 63.74%
(1) The Company holds a direct and indirect interest of 0.709% in TGS and 50% in CIESA, a company that holds a 51% interest in the share capital of TGS. Therefore, additionally the Company has an indirect participation of 26.21% in TGS.

As of March 31, 2024, the quotation of TGS's ordinary shares and ADR published on the BCBA and the NYSE was $ 3,279.35 and US$ 15.10, respectively, granting to Pampa (direct and indirect) ownership an approximate stake market value of $ 682,865 million.

(2) The Company holds a 50% interest in Citelec, a company that holds a 52.65% interest in Transener's capital stock; therefore, the Company has a 26.33% indirect interest in Transener. As of March 31, 2024, Transener's common share price listed at the BCBA was $ 1,313.50, conferring Pampa's indirect interest an approximate $ 153,759 million market value.
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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 5: (Continuation)

The detail of the balances of investments in associates and joint ventures is as follows:

03.31.2024 12.31.2023
Disclosed in non-current assets
Associates
OCP - 18,513
TGS 12,115 10,997
Other 19 18
Total associates 12,134 29,528
Joint ventures
CIESA 384,875 244,748
Citelec 103,494 66,466
CTB 232,308 202,236
OCP 11,822 -
Total joint ventures 732,499 513,450
Total associates and joint ventures 744,633 542,978

The following table shows the breakdown of the result from investments in associates and joint ventures:

03.31.2024 03.31.2023
Associates
OCP - 39
TGS 501 203
Total associates 501 242
Joint ventures
CIESA 13,784 1,328
Citelec 2,717 1,109
CTB 17,299 521
OCP 17,115 -
Total joint ventures 50,915 2,958
Total associates and joint ventures 51,416 3,200
17

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 5: (Continuation)

The evolution of investments in associates and joint ventures is as follows:

03.31.2024 03.31.2023
At the beginning of the year 542,978 159,833
Dividends (6,955) -
Aquisition of equity interests 12,625 -
Share repurchase (30,135) -
Sale of equity interests (4,748) (658)
Share of profit 51,416 3,200
Exchange differences on translation 179,452 32,721
At the end of the period 744,633 195,096
5.2.3 Investment in OCP

On January 16, 2024, the Company, through PEB, closed the transaction for the acquisition of 2,979,606,613 additional shares, representing a 29.66% stake in OCP, for a price of US$ 15 million under the purchase and sale agreement entered into with Repsol OCP de Ecuador S.A. on May 4, 2023. The closing of the transaction implied the recognition of profits for US$ 5 million under IAS 28.

As of the closing of the transaction, the Company, through PEB, has reached a 63.74% stake in OCP's capital stock and obtained joint control, pursuant to the commitment to amend the shareholders' agreement dated January 9, 2024 entered into with PetroOriental OCP Holdings Ltd.

Besides, OCP declared dividends for US$ 13.3 million on January 18, 2024, and repurchased a total of 5,740,902,124 own shares on January 22, 2024, for a unit price of US$ 0.01. Consequently, on January 22, 2024, the Company, through PEB, collected dividends in the amount of US$ 8.5 million and US$ 36.6 million for share repurchases.

It is worth highlighting that on March 23, 2024, a Force Majeure event occurred due to unpredictable ground conditions that caused an axial compression and rupture of the pipeline at KP136+404. OCPSA immediately activated the pipeline contingency plan and resumed the crude oil transportation service on March 26, 2024.

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 5: (Continuation)

Contingent liabilities in OCPSA

The constitutional protection action filed by the decentralized autonomous government of Orellana against OCPSA, Petroecuador and others due to the Force Majeure event caused by the rupture of the oil pipeline in 2020 was disallowed in the first instance; as the plaintiff appealed the resolution, the proceeding will be sent back to the Provincial Court of Justice of Orellana.

On the other hand, the constitutional protection action filed by residents of Puerto Madero against OCPSA, the Presidency of the Republic of Ecuador and Petroecuador was accepted; however, OCPSA, Petroecuador and the Presidency of the Republic appealed the resolution, so the proceeding will be referred back to the Provincial Court of Justice of Sucumbíos.

5.3 Oil and gas participations

Assets and liabilities as of March 31, 2024 and December 31, 2023 and the production cost of the Joint Ventures and Consortiums in which the Company participates corresponding to the three-month periods ended March 31, 2024 and 2023 are detailed below:

03.31.2024 12.31.2023
Non-current assets 114,092 90,360
Current assets 10,223 5,587
Total assets 124,315 95,947
Non-current Liabilities 37,087 13,371
Current Liabilities 31,265 23,084
Total liabilities 68,352 36,455
03.31.2024 03.31.2023
Production cost 16,844 4,353

It is worth highlighting that the information presented does not include charges recorded by the Company as a member of the Joint Ventures and Consortiums.

19

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 6: RISKS

6.1 Critical accounting estimates and judgments

The preparation of these Consolidated Condensed Interim Financial Statements requires the Company's Management to make future estimates and assessments, to apply critical judgment and to establish assumptions affecting the application of accounting policies and the amounts of disclosed assets and liabilities, and income and expenses.

Those estimates and judgments are evaluated on a continuous basis and are based on past experiences and other reasonable factors under the existing circumstances. Actual future results might differ from the estimates and evaluations made at the date of preparation of these Consolidated Condensed Interim Financial Statements.

In the preparation of these Consolidated Condensed Interim Financial Statements, management judgements on applying the Company's accounting policies and sources of information used for the respective estimates are the same as those applied in the Consolidated Financial Statements for the fiscal year ended December 31, 2023.

6.2 Financial risk management

The Company's activities are subject to several financial risks: market risk (including the exchange rate risk, the interest rate risk and price risk), credit risk and liquidity risk.

No significant changes have arisen in risk management policies since last fiscal year.

Credit risk

As of March 31, 2024, CAMMESA's debt with the Group amounts to $ 182,455 million, including accrued interest as of that date, which represents approximately 52% of the Group's total sales receivables. CAMMESA's inability to pay could adversely affect the generation of cash from operations, the results for the year and, consequently, the Group's financial condition.

The Company performs routine financial transactions in its ordinary course of business to ensure the efficient management of its liquidity and investments, and, as of the date of issuance of these Consolidated Condensed Interim Financial Statements, it has sufficient solvency to meet its operating and financial obligations.

However, it is worth highlighting that, as of the date of issuance of these Consolidated Condensed Interim Financial Statements, collection transactions for the months of December 2023, January 2024 and February 2024, totaling $ 37,272 million, $ 42,700 million and $ 46,428 million, respectively, are past due and pending recovery.

20

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 6: (Continuation)

Given that the Company has learned that the SE would be soon publishing a resolution providing for an exceptional payment system that would establish the following cancellation mechanism:

(i) December 2023 and January 2024 transactions: through the delivery of government securities (USD 2038 L.A. BOND), considering the exchange rate effective on each agreement's execution date for the calculation of the nominal amounts; and
(ii) February 2024 transaction: with funds available in CAMMESA and transfers made by the Federal Government;

the Group has recorded an impairment of $ 29,673 million (US$ 34.6 million) under CAMMESA receivables, considering the market value of the instruments maturing in 2038 expected to be received under the above-described cancellation methodology. The Company will evaluate possible courses of action when it has more information in this respect.

NOTE 7: SEGMENT INFORMATION

The Company is a fully integrated power company in Argentina, which participates in the electricity, oil and gas value chains.

Through its own activities, subsidiaries and shareholdings in joint ventures and associates, and based on the business nature, customer portfolio and risks involved, the following business segments have been identified:

Electricity Generation, principally consisting of the Company's direct and indirect interests in HINISA, HIDISA, Greenwind (until divestment on August 16, 2023), VAR, CTB, TMB, TJSM and through its own electricity generation activities through thermal plants CTG, CPB, Piquirenda, CTLL, CTGEBA, Ecoenergía, CTPP, CTIW, the HPPL hydroelectric complex and PEPE II, PEPE III and PEPE IV wind farms.

Oil and Gas, principally consisting of the Company's interests in oil and gas areas and through its direct and indirect interest in CISA (until the corporate reorganization detailed in Note 5.1) and PECSA.

Petrochemicals, comprising of the Company's own styrenics operations and the catalytic reformer plant operations conducted in local plants.

Holding and Other Business, principally consisting of interests in joint businesses CITELEC, CIESA and OCP and their respective subsidiaries, which hold the concession over the high voltage electricity transmission and over gas and oil transportation, respectively.

The Company manages its operating segment based on its individual net result in U.S. dollars.

21

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 7: (Continuation)

in million of US$ in million of $
Consolidated profit and loss information for the three-month period ended March 31, 2024 Generation Oil and gas Petrochemicals Holding and others Eliminations Consolidated Consolidated
Revenue - local market 154 93 76 3 - 326 274,579
Revenue - foreign market - 31 44 - - 75 62,797
Intersegment revenue - 26 - - (26) - -
Cost of sales (77) (99) (108) - 26 (258) (215,183)
Gross profit 77 51 12 3 - 143 122,193
Selling expenses (1) (13) (2) - - (16) (13,580)
Administrative expenses (13) (18) (2) (8) - (41) (34,238)
Exploration expenses - - - - - - (82)
Other operating income 17 14 3 1 - 35 28,992
Other operating expenses (3) (5) (1) (22) - (31) (26,385)
Impairment of inventories - - - - - - (32)
Impairment of financial assets (34) - - - - (34) (29,830)
Share of profit from associates and joint ventures 21 - - 40 - 61 51,416
Profit from sale of companies´ interest - - - 2 - 2 1,458
Operating income 64 29 10 16 - 119 99,912
Financial income 1 - - 2 (1) 2 1,347
Financial costs (17) (26) (1) (10) 1 (53) (43,955)
Other financial results 53 (4) - 3 - 52 43,805
Financial results, net 37 (30) (1) (5) - 1 1,197
Profit (Loss) before income tax 101 (1) 9 11 - 120 101,109
Income tax 97 49 2 - - 148 122,687
Profit of the period 198 48 11 11 - 268 223,796
Depreciation and amortization 20 47 1 - - 68 57,114
22

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 7: (Continuation)

in million of US$ in million of $
Consolidated profit and loss information for the three-month period ended March 31, 2024 Generation Oil and gas Petrochemicals Holding and others Eliminations Consolidated Consolidated
Total profit of the period attributable to:
Owners of the company 197 48 11 11 - 267 223,099
Non-controlling interest 1 - - - - 1 697
Consolidated financial position information as of March 31, 2024
Assets 2,813 1,512 182 718 (17) 5,208 4,468,226
Liabilities 734 1,190 154 296 (17) 2,357 2,022,376
Net book values of property, plant and equipment 1,350 1,173 27 35 - 2,585 2,218,134
Additional consolidated information as of March 31, 2024
Increases in property, plant and equipment, intangibles assets and right-of-use assets 24 87 1 1 - 113 95,072
23

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 7: (Continuation)

in million of US$ in million of $
Consolidated profit and loss information for the three-month period ended March 31, 2023 Generation Oil and gas Petrochemicals Holding and others Eliminations Consolidated Consolidated
Revenue - local market 173 79 89 4 - 345 67,409
Revenue - foreign market - 50 36 - - 86 16,506
Intersegment revenue - 25 - - (25) - -
Cost of sales (84) (92) (114) - 25 (265) (50,538)
Gross profit 89 62 11 4 - 166 33,377
Selling expenses (1) (12) (3) - - (16) (3,193)
Administrative expenses (12) (18) (2) (9) - (41) (8,521)
Exploration expenses - - - - - - (48)
Other operating income 18 5 - - - 23 4,859
Other operating expenses (12) (5) - (3) - (20) (3,845)
Recovery of impairment of intangible assets - - - 2 - 2 411
Impairment of financial assets - - - - - - (80)
Share of profit from associates and joint ventures 2 - - 13 - 15 3,200
Operating income 84 32 6 7 - 129 26,160
Financial income - - - 2 (2) - 193
Financial costs (25) (38) (1) (14) 2 (76) (14,711)
Other financial results 34 5 - 45 - 84 14,643
Financial results, net 9 (33) (1) 33 - 8 125
Profit before income tax 93 (1) 5 40 - 137 26,285
Income tax 3 - - 1 - 4 643
Profit (Loss) of the period 96 (1) 5 41 - 141 26,928
Depreciation and amortization 26 32 1 - - 59 11,369
24

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 7: (Continuation)

in million of US$ in million of $
Consolidated profit and loss information for the three-month period ended March 31, 2023 Generation Oil and gas Petrochemicals Holding and others Eliminations Consolidated Consolidated
Total profit (loss) of the period attributable to:
Owners of the company 96 (1) 5 41 - 141 26,918
Non-controlling interest - - - - - - 10
Consolidated financial position information as of December 31, 2023
Assets 2,684 1,396 157 631 (146) 4,722 3,817,196
Liabilities 729 1,213 137 376 (146) 2,309 1,866,500
Net book values of property, plant and equipment 1,345 1,138 27 34 - 2,544 2,056,974
Additional consolidated information as of March 31, 2023
Increases in property, plant and equipment 93 88 2 2 - 185 36,399
25

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 8: REVENUE

03.31.2024 03.31.2023
Energy sales in spot market 39,838 11,218
Energy sales by supply contracts 70,594 18,704
Fuel supply 18,088 3,992
Other sales 955 52
Generation sales subtotal 129,475 33,966
Gas sales 82,346 17,393
Oil sales 20,590 7,018
Other sales 2,280 351
Oil and gas sales subtotal 105,216 24,762
Products from catalytic reforming sales 53,143 10,902
Styrene sales 14,539 3,751
Synthetic rubber sales 13,983 3,238
Polystyrene sales 18,056 6,463
Other sales 451 124
Petrochemicals sales subtotal 100,172 24,478
Technical assistance and administration services sales 2,477 686
Other sales 36 23
Holding and others subtotal 2,513 709
Total revenue (1) 337,376 83,915
(1) Revenues from CAMMESA represent 35% and 39% of total revenues from sales for the periods ended March 31, 2024 and 2023, respectively, and correspond mainly to the Power Generation and Oil & Gas segments. Additionally, revenues from ENARSA represent 10% of total revenues from sales for the period ended March 31, 2024, and correspond mainly to the Oil & Gas segment.
26

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 9: COST OF SALES

03.31.2024 03.31.2023
Inventories at the beginning of the year 166,023 30,724
Plus: Charges of the period
Purchases of inventories, energy and gas 89,097 22,948
Salaries and social security charges 15,391 3,912
Employees benefits 2,418 703
Defined benefit plans 1,951 574
Works contracts, fees and compensation for services 23,599 5,217
Property, plant and equipment depreciation 54,248 10,715
Intangible assets amortization 798 288
Right-of-use assets amortization 454 37
Energy transportation 1,649 427
Transportation and freights 3,501 617
Consumption of materials 4,184 1,106
Penalties 251 89
Maintenance 6,775 2,063
Canons and royalties 17,004 4,088
Environmental control 843 316
Rental and insurance 6,010 1,387
Surveillance and security 866 200
Taxes, rates and contributions 1,096 193
Other 526 190
Total charges of the period 230,661 55,070
Exchange differences on translation 6,683 4,836
Less: Inventories at the end of the period (188,184) (40,092)
Total cost of sales 215,183 50,538
27

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 10: OTHER ITEMS OF THE STATEMENT OF COMPREHENSIVE INCOME

10.1 Selling expenses

03.31.2024 03.31.2023
Salaries and social security charges 1,081 247
Employees benefits 60 20
Fees and compensation for services 358 174
Property, plant and equipment depreciation 6 1
Taxes, rates and contributions 2,833 615
Transportation and freights 9,130 2,093
Other 112 43
Total selling expenses 13,580 3,193

10.2 Administrative expenses

03.31.2024 03.31.2023
Salaries and social security charges 12,192 3,344
Employees benefits 1,215 350
Defined benefit plans 4,464 1,246
Fees and compensation for services 6,733 1,301
Compensation agreements 2,891 865
Directors' and Sindycs' fees 1,117 282
Property, plant and equipment depreciation 1,608 328
Consumption of materials 47 15
Maintenance 528 107
Transport and per diem 193 93
Rental and insurance 66 25
Surveillance and security 162 47
Taxes, rates and contributions 2,066 309
Communications 148 52
Other 808 157
Total administrative expenses 34,238 8,521

10.3 Exploration expenses

03.31.2024 03.31.2023
Geological and geophysical expenses 82 48
Total exploration expenses 82 48
28

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 10: (Continuation)

10.4 Other operating income and expenses

03.31.2024 03.31.2023
Other operating income
Insurance recovery 3,122 4
Services provided to third parties 24 34
Results for property, plant and equipment sale and derecognition 2 51
Contingencies recovery 53 2
Tax charges recovery 14 12
Commercial interests 15,718 2,791
Contractual indemnity - 1,360
GasAr Plan 5,793 464
Export Increase Program 2,906 -
Other 1,360 141
Total other operating income 28,992 4,859
Other operating expenses
Provision for contingencies (18,616) (250)
Provision for environmental remediation (20) (10)
Results for property, plant and equipment sale and derecognition (54) (19)
Tax on bank transactions (2,351) (656)
PAIS import tax (419) -
Donations and contributions (266) (83)
Institutional promotion (285) (104)
Costs of concessions agreements completion (1,147) (794)
Contractual penalty - (1,360)
Royalties GasAr Plan (784) (66)
Other (2,443) (503)
Total other operating expenses (26,385) (3,845)
29

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 10: (Continuation)

10.5 Financial results

03.31.2024 03.31.2023
Financial income
Financial interest 509 85
Other interest 838 108
Total financial income 1,347 193
Financial costs
Financial interests (1) (31,243) (11,398)
Commercial interests (37) (31)
Fiscal interests (7,138) (2,758)
Other interests (4,519) (166)
Bank and other financial expenses (1,018) (358)
Total financial costs (43,955) (14,711)
Other financial results
Foreign currency exchange difference, net (7,186) 4,754
Changes in the fair value of financial instruments 52,844 10,165
Result from present value measurement (1,637) (262)
Result from repurchase of CB - 30
Other financial results (216) (44)
Total other financial results 43,805 14,643
Total financial results, net 1,197 125
(1) Net of $ 3,673 million and $ 953 million capitalized in property, plant and equipment for the three-month periods ended March 31, 2024 and 2023, respectively.
30

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 10: (Continuation)

10.6 Income tax

The breakdown of income tax charge is:

03.31.2024 03.31.2023
Current tax 50,615 (185)
Deferred tax (173,302) (463)
Difference between previous fiscal period income tax provision and the income tax statement - 5
Total income tax - Profit (122,687) (643)

Below is a reconciliation between income tax expense and the amount resulting from application of the tax rate on the profit before taxes:

03.31.2024 03.31.2023
Profit before income tax 101,109 26,285
Current income tax rate 35% 35%
Income tax at the statutary tax rate 35,388 9,200
Share of profit from companies (17,995) (1,120)
Non-taxable results 87 (1,147)
Effects of exchange differences and other results associated with the valuation of the currency, net 21,710 14,623
Effects of valuation of property, plant and equipment, intangible assets and financial assets (283,373) (35,748)
Effect for tax inflation adjustment 121,267 13,322
Non-deductible cost 99 130
Other 130 97
Total income tax - Profit (122,687) (643)
31

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 11: NON-FINANCIAL ASSETS AND LIABILITIES

11.1 Property, plant and equipment
Original values
Type of good At the beginning Increases (1) Transfers Decreases Traslation effect
At the end
Lands 10,642 - - - 653 11,295
Buildings 115,809 - 257 - 7,103 123,169
Equipment and machinery 1,584,615 34 5,830 - 97,194 1,687,673
Wells 966,529 1,667 49,759 - 60,120 1,078,075
Mining property 160,153 - 223 - 9,818 170,194
Vehicles 8,026 99 - (54) 489 8,560
Furniture and fixtures and software equipment 50,878 638 495 (1) 3,159 55,169
Communication equipments 1,016 - - - 62 1,078
Materials, spare parts and tools 34,178 10,003 (9,483) - 3,917 38,615
Petrochemical industrial complex 26,047 32 1,402 - 1,630 29,111
Civil works 19,443 - - - 1,192 20,635
Work in progress 336,707 73,703 (39,676) - 19,653 390,387
Advances to suppliers 52,778 4,360 (8,807) - 3,369 51,700
Other goods 354 - - - 22 376
Total at 03.31.2024 3,367,175 90,536 - (55) 208,381 3,666,037
Total at 03.31.2023 651,459 36,399 - (1,822) 119,542 805,578

(1)Includes $ 3,673 million and $ 953 million of financial costs capitalized for the three-month periods ended March 31, 2024 and 2023, respectively.

32

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 11: (Continuation)

Depreciation Net book values
Type of good At the beginning Decreases For the period Traslation effect At the end At the end At 12.31.2023
Lands - - - - - 11,295 10,642
Buildings (67,010) - (1,618) (4,154) (72,782) 50,387 48,799
Equipment and machinery (605,189) - (23,481) (37,755) (666,425) 1,021,248 979,426
Wells (467,546) - (26,835) (29,394) (523,775) 554,300 498,983
Mining property (100,395) - (1,554) (6,192) (108,141) 62,053 59,758
Vehicles (4,606) 17 (305) (289) (5,183) 3,377 3,420
Furniture and fixtures and software equipment (45,350) 1 (1,061) (2,810) (49,220) 5,949 5,528
Communication equipments (903) - (23) (56) (982) 96 113
Materials, spare parts and tools (1,315) - (36) (82) (1,433) 37,182 32,863
Petrochemical industrial complex (15,829) - (655) (989) (17,473) 11,638 10,218
Civil works (1,711) - (291) (113) (2,115) 18,520 17,732
Work in progress - - - - - 390,387 336,707
Advances to suppliers - - - - - 51,700 52,778
Other goods (347) - (3) (24) (374) 2 7
Total at 03.31.2024 (1,310,201) 18 (55,862) (81,858) (1,447,903) 2,218,134
Total at 03.31.2023 (267,995) 933 (11,044) (49,347) (327,453) 478,125
Total at 12.31.2023 2,056,974
33

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 11: (Continuation)

11.2 Intangible assets

Original values
Type of good At the beginning Increase Decrease Impairment recovery (1) Traslation effect
At the end
Concession agreements 2,027 - - - 124 2,151
Goodwill 27,978 - - - 1,715 29,693
Intangible identified in acquisitions of companies 56,049 190 - - 3,444 59,683
Total at 03.31.2024 86,054 190 - - 5,283 91,527
Total at 03.31.2023 25,582 - (1,626) 411 4,436 28,803
Amortization
Type of good At the beginning For the period Traslation effect
At the end
Concession agreements (1,976) (17) (122) (2,115)
Intangible identified in acquisitions of companies (6,180) (781) (402) (7,363)
Total at 03.31.2024 (8,156) (798) (524) (9,478)
Total at 03.31.2023 (1,218) (288) (249) (1,755)
Net book values
Type of good At the end At 12.31.2023
Concession agreements 36 51
Goodwill 29,693 27,978
Intangible identified in acquisitions of companies 52,320 49,869
Total at 03.31.2024 82,049
Total at 03.31.2023 27,048
Total at 12.31.2023 77,898
(1) The sale of the digital assets at market price resulted in the recognition of an impairment recovery for $ 411 million (US$ 2 million) as of March 31, 2023.
34

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 11: (Continuation)

11.3 Deferred tax assets and liabilities

The composition of the deferred tax assets and liabilities is as follows:

03.31.2024 12.31.2023
Tax loss carryforwards 13,092 116,514
Property, plant and equipment 68,969 105
Intangible assets - 1
Financial assets at fair value through profit and loss - 127
Trade and other receivables 2,227 366
Provisions 53,769 42,542
Tax liabilities 463 -
Salaries and social security payable 403 540
Defined benefit plans 5,419 3,343
Trade and other payables 258 258
Deferred tax asset 144,600 163,796
Property, plant and equipment (28,885) (179,201)
Intangible assets (28,683) (27,229)
Investments in companies (7,952) (5,343)
Inventories (33,391) (36,640)
Financial assets at fair value through profit and loss (5,366) (14,568)
Trade and other receivables (571) (8,182)
Tax liabilities (322) (322)
Other (3,567) (985)
Tax inflation adjustment (113,716) (132,010)
Deferred tax liability (222,453) (404,480)

Deferred tax assets and liabilities are offset only when there is a legally enforceable right to offset tax assets and liabilities; and when deferred income tax charges are associated with the same fiscal authority. Therefore, they are disclosed in the consolidated condensed interim statement of financial position:

03.31.2024 12.31.2023
Deferred tax asset, net 11,537 2
Deferred tax liability, net (89,390) (240,686)
35

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 11: (Continuation)

11.4 Inventories

03.31.2024 12.31.2023
Current
Materials and spare parts 116,662 103,969
Advances to suppliers 6,115 3,627
In process and finished products 65,407 58,427
Total (1) 188,184 166,023
(1) It includes impairment loss as a result of the performed recoverability assessment for$ 32 million (US$ 0.05 million) and $ 739 millones (US$ 3 millones) as of March 31, 2024 and December 31, 2023. There is no impairment as of March 31, 2023.

11.5 Provisions

03.31.2024 12.31.2023
Non-Current
Contingencies 115,865 88,042
Asset retirement obligation and wind turbines decommision 21,255 19,463
Environmental remediation 13,198 12,358
Total non-current 150,318 119,863
Current
Asset retirement obligation and wind turbines decommision 3,302 2,775
Environmental remediation 773 917
Other provisions 2,111 957
Total current 6,186 4,649
36

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 11: (Continuation)

The evolution of provisions is shown below:

03.31.2024
Contingencies Asset retirement obligation and wind turbines decommision Environmental remediation
At the beginning of the year 88,042 22,238 13,275
Increases 22,908 934 81
Decreases (2) - (100)
Exchange differences on translation 4,973 1,387 804
Reversal of unused amounts (56) (2) (89)
At the end of the period 115,865 24,557 13,971
03.31.2023
Contingencies Asset retirement obligation and wind turbines decommision Environmental remediation
At the beginning of the year 19,047 4,853 2,935
Increases 368 154 51
Decreases (43) - (49)
Exchange differences on translation 3,330 818 511
Reversal of unused amounts (2) (918) (42)
At the end of the period 22,700 4,907 3,406

11.5.1 Provision for lawsuits and contingencies

In connection with the international arbitration proceeding brought by POSA against the Company, on April 3, 2024, the Court of Arbitration of the International Chamber of Commerce ("ICC") notified the parties of the Final Award rendered on April 2, 2024, in which it resolved to: (i) disallow all but one of POSA's claims, ordering the Company to pay the corresponding 33.60% of (a) the revenues collected under the Leasing Agreement up to the Final Award's date for US$ 18.8 million, plus a 6% annual interest rate, and (b) the collections to be received by the Company in the future under the before-mentioned agreement; and (ii) sustain the Company's counterclaim for US$ 2 million plus interest at an annual 6% rate. On April 10, 2024, the Company filed a plea of partial nullity against the Final Award.

37

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 11: (Continuation)

11.6 Income tax and minimum notional income tax provision

03.31.2024 12.31.2023
Non-current
Income tax, net of witholdings and advances 97,555 40,472
Minimum notional income tax 4,400 4,142
Total non-current 101,955 44,614
Current
Income tax, net of witholdings and advances 14,009 14,026
Total current 14,009 14,026

NOTE 12: FINANCIAL ASSETS AND LIABILITIES

12.1 Financial assets at amortized cost
03.31.2024 12.31.2023
Current
Term deposit 86,741 81,511
Notes receivable 2,571 3,238
Total current 89,312 84,749

Due to the short-term nature of investments at amortized cost, their book value is not considered to differ from their fair value.

38

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 12: (Continuation)

12.2 Financial assets at fair value through profit and loss
03.31.2024 12.31.2023
Non-current
Shares 29,758 28,040
Total non-current 29,758 28,040
Current
Government securities 333,717 313,964
Corporate bonds 47,802 64,125
Shares 80,960 71,141
Mutual funds 1,901 2,653
Total current 464,380 451,883
12.3 Trade and other receivables
Note 03.31.2024 12.31.2023
Non-Current
Receivables 58 55
Trade receivables 58 55
Non-Current
Related parties 16 8,172 9,040
Tax credits 2,028 1,004
Receivables for sale of associates 1,100 1,038
Contractual indemnity credit 2,792 2,959
Expenses to be recovered 2,477 -
Other 509 428
Other receivables 17,078 14,469
Total non-current 17,136 14,524
39

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 12: (Continuation)

Note 03.31.2024 12.31.2023
Current
Receivables 164,869 84,914
CAMMESA 182,455 80,957
Related parties 16 3,998 3,882
Impairment of financial assets (31,061) (1,203)
Trade receivables, net 320,261 168,550
Current
Related parties 16 6,224 5,800
Tax credits 6,350 7,903
Prepaid expenses 20,845 4,287
Guarantee deposits 32,733 15,378
Expenses to be recovered 5,126 4,934
Insurance to be recovered 6,148 3,589
Receivables for sale of associates 1,179 1,046
GasAr Plan 10,439 8,658
Advances to employees 3,771 8,395
Contractual indemnity credit 1,396 1,827
Receivable for sale of fiancial instruments 6,591 5
Other 7,537 7,934
Impairment of other receivables (11) (12)
Other receivables, net 108,328 69,744
Total current 428,589 238,294

Due to the short-term nature of trade and other receivables, its book value is not considered to differ from its fair value. For non-current trade and other receivables, fair values do not significantly differ from book values.

40

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 12: (Continuation)

The movements in the impairment of financial assets are as follows:

03.31.2024 03.31.2023
At the beginning of the year 1,203 1,039
Impairment 30,100 91
Reversal of unused amounts (268) (6)
Exchange differences on translation 26 35
At the end of the period 31,061 1,159

The movements in the impairment of other receivables are as follows:

03.31.2024 03.31.2023
At the beginning of the year 12 38
Impairment - 1
Reversal of unused amounts (2) (24)
Exchange differences on translation 1 5
At the end of the period 11 20
12.4 Cash and cash equivalents
03.31.2024 12.31.2023
Cash 172 162
Banks 21,186 24,815
Mutual funds 150,219 112,996
Total 171,577 137,973
41

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 12: (Continuation)

12.5 Borrowings
03.31.2024 12.31.2023
Non-Current
Financial borrowings 12,870 -
Corporate bonds 1,097,917 989,182
Total non-current 1,110,787 989,182
Current
Bank overdrafts 16,626 24,857
Financial borrowings 97,995 54,376
Corporate bonds 115,633 102,124
Total current 230,254 181,357
Total 1,341,041 1,170,539

As of March 31, 2024, and December 31, 2023 the fair value of the Company's CB amount approximately to $ 1,170,318 million and $ 1,091,685 million, respectively. Such values were calculated on the basis of the determined market price of the Company's CB at the end of each period (fair value Level 1).

The carrying amounts of short-term borrowings and current account advances approximate their fair value due to their short-term maturity.

The long-term borrowings were measured at amortized cost, which does not differ significantly from its fair value.

As of the issuance of these Consolidated Condensed Interim Financial Statements, the Company is in compliance with the covenants provided for in its loan's contracts.

42

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 12: (Continuation)

12.5.1 Loans´evolution:

The evolution of the consolidated loans over the three-month periods ended March 31, 2024 and 2023 is disclosed below.

03.31.2024 03.31.2023
At the beginning of the year 1,170,539 285,766
Proceeds from borrowings 112,857 28,783
Payment of borrowings (10,959) (11,465)
Accrued interest 31,219 11,396
Payment of interests (34,128) (10,055)
Repurchase of CB - (586)
Result from repurchase of CB - (30)
Foreign currency exchange difference (3,726) (7,432)
Borrowing costs capitalized in property, plant and equipment 3,673 953
Exchange differences on translation 71,566 52,026
At the end of the period 1,341,041 349,356

12.5.2 Redemption of Class 17 CB and issuance of Class 19 and 20 CB

On February 5, 2024, Pampa redeemed all its Class 17 CB for a total amount of $ 5,980 million. Additionally, on February 29, 2024, the Company issued Class 19 CB for $ 17,131 million, accruing interest at a variable Badlar rate plus an applicable 1% annual negative margin and maturing on February 28, 2025.

Finally, on March 26, 2024, the Company issued Class 20 CB for US$ 55.2 million, accruing interest at a fixed 6% rate and maturing on March 26, 2026.

12.5.3 Bank loans

During the period ended March 31, 2024, the Company took out net short-term financing with local financial institutions for $900 million and repaid net import financing for $3.5 million. Additionally, the Company borrowed US$ 50 million from local banking institutions. Post-closing, the Company borrowed US$ 40 million from local financial institutions, repaid short-term bank debt with local financial institutions for $25.5 billion and repaid import financing for US$ 5 million.

43

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 12: (Continuation)

12.6 Trade and other payables
Note 03.31.2024 12.31.2023
Non-Current
Customer guarantees 21 19
Trade payables 21 19
Compensation agreements 24,997 22,264
Finance leases liability 11,990 11,686
Contractual penalty debt 2,792 2,959
Other 513 373
Other payables 40,292 37,282
Total non-current 40,313 37,301
Current
Suppliers 173,577 150,402
Customer advances 18,490 7,138
Related parties 16 14,708 11,808
Trade payables 206,775 169,348
Compensation agreements 10,201 8,686
Liability for acquisition of companies - 6,844
Finance leases liability 3,102 2,923
Contractual penalty debt 1,396 1,315
Various creditors - 2,484
Other 362 200
Other payables 15,061 22,452
Total current 221,836 191,800

Due to the short-term nature of trade and other payables, its book value is not considered to differ from its fair value. For most other non-current liabilities, fair values do not significantly differ from book values.

44

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 12: (Continuation)

12.7 Fair value of financial instruments

The following table shows the Company's financial assets and liabilities measured at fair value as of March 31, 2024 and December 31, 2023:

As of March 31, 2024 Level 1 Level 2 Level 3 Total
Assets
Financial assets at fair value through
profit and losss
Government securities 333,717 - - 333,717
Corporate bonds 47,802 - - 47,802
Mutual funds 1,901 - - 1,901
Shares 80,960 - 29,758 110,718
Cash and cash equivalents
Mutual funds 150,219 - - 150,219
Derivative financial instruments - 265 - 265
Other receivables
Guarantee deposits on derivative financial instruments 3,462 - - 3,462
Total assets 618,061 265 29,758 648,084
Liabilities
Derivative financial instruments - 110 - 110
Total liabilities - 110 - 110
As of December 31, 2023 Level 1 Level 2 Level 3 Total
Assets
Financial assets at fair value through
profit and losss
Government securities 313,964 - - 313,964
Corporate bonds 64,125 - - 64,125
Mutual funds 2,653 - - 2,653
Shares 71,141 - 28,040 99,181
Cash and cash equivalents
Mutual funds 112,996 - - 112,996
Derivative financial instruments - 250 - 250
Other receivables
Guarantee deposits on derivative financial instruments 5,764 - - 5,764
Total assets 570,643 250 28,040 598,933
Liabilities
Derivative financial instruments - 191 - 191
Total liabilities - 191 - 191
45

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 12: (Continuation)

The techniques used for the measurement of assets and liabilities at fair value through profit and loss, classified as Level 2 and 3, are detailed below:

- Derivative Financial Instruments: calculated from variations between market prices at the closing date of the period, and the amount at the time of the contract.
- Shares: it was determined using the income-based approach through the "Indirect Cash Flow" method, that is, the net present value of expected future cash flows, mainly through the collection of dividends taking into consideration the direct 2.84% and 3.19% stakes and the 2.18% and 2.46% additional stakes through HIDISA and HINISA, in TJSM and TMB, respectively.

NOTE 13: EQUITY COMPONENTS

13.1 Share Capital

As of March 31, 2024, the capital stock amounts to $ 1,364 million, including $ 4 million of treasury shares.

To comply with the provisions established by the CNV, the breakdown of the translation differences originated in the share capital and capital adjustment accounts is detailed below:

03.31.2024
Share capital Share capital adjustment
At the beginning of the year 27,854 145,729
Variation of the period 1,791 9,368
At the end of the period 29,645 155,097
12.31.2023
Share capital Share capital adjustment
At the beginning of the year 5,117 26,760
Variation of the period 22,737 118,969
At the end of the year 27,854 145,729
46

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 13: (Continuation)

13.2 Earning per share

Basic earnings per share are calculated by dividing the result attributable to the Company's equity holders by the weighted average of outstanding common shares during the year. Diluted earnings per share are calculated by adjusting the weighted average of outstanding common shares to reflect the conversion of all dilutive potential common shares.

Potential common shares will be deemed dilutive only when their conversion into common shares may reduce the earnings per share or increase losses per share of the continuing business. Potential common shares will be deemed anti-dilutive when their conversion into common shares may result in an increase in the earnings per share or a decrease in the losses per share of the continuing operations.

The calculation of diluted earnings per share does not entail a conversion, the exercise or another issuance of shares which may have an anti-dilutive effect on the losses per share, and where the option exercise price is higher than the average price of ordinary shares during the period, no dilutive effect is recorded, being the diluted earning per share equal to the basic. As of March 31, 2024 and 2023, the Company does not hold any significant potential dilutive shares, therefore there are no differences with the basic earnings per share.

03.31.2024 03.31.2023
Earning attributable to equity holders of the Company 223,099 26,918
Weighted average amount of outstanding shares 1,360 1,380
Basic and diluted earnings per share 164.04 19.51
47

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 14: STATEMENT OF CASH FLOWS' COMPLEMENTARY INFORMATION

14.1 Adjustments to reconcilie net profit to cash flows from operating activities
Note 03.31.2024 03.31.2023
Income tax 10.6 (122,687) (643)
Accrued interest 26,980 11,428
Depreciations and amortizations 9, 10.1 and 10.2 57,114 11,369
Share of profit of joint ventures and associates 5.2.2 (51,416) (3,200)
Profit from sale of companies´ interest (1,458) -
Results for property, plant and equipment sale and derecognition 10.4 52 (32)
(Impairment) Recovery of impairment of intangible assets and inventories 32 (411)
Impairment of financial assets 29,830 80
Result from present value measurement 10.5 1,637 262
Changes in the fair value of financial instruments (46,706) (9,099)
Exchange differences, net 3,209 (5,258)
Result from repurchase of CB 10.5 - (30)
Costs of concessions agreements completion 10.4 1,147 794
Contractual indemnity 10.4 - (1,360)
Contractual penalty 10.4 - 1,360
Provision for contingecies, net 10.4 18,563 248
Provision for environmental remediation 10.4 20 10
Accrual of defined benefit plans 9 and 10.2 6,415 1,820
Compensation agreements 10.2 2,891 865
Other (263) (364)
Adjustments to reconcile net profit to cash flows from operating activities (74,640) 7,839
48

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 14: (Continuation)

14.2 Changes in operating assets and liabilities
03.31.2024 03.31.2023
Increase in trade receivables and other receivables (252,654) (6,265)
Increase in inventories (15,509) (4,532)
Increase in trade payables and other payables 97,847 9,576
Decrease in salaries and social security payables (2,090) (1,123)
Defined benefit plans payments (484) (62)
Increase in tax liabilities 10,002 982
Decrease in provisions (467) (381)
Income tax payment - (395)
Payments for derivative financial instruments, net (15) (25)
Changes in operating assets and liabilities (163,370) (2,225)
14.3 Significant non-cash transactions
03.31.2024 03.31.2023
Acquisition of property, plant and equipment through an increase in trade payables (38,815) (13,401)
Borrowing costs capitalized in property, plant and equipment (3,673) (953)
Increase in asset retirement obligation and wind turbines decommision through property, plant and equipment - (878)
Receivables for acquisition of subsidiary - 1,182
49

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 15: CONTINGENT LIABILITIES AND ASSETS

The main changes for the three-month period ended March 31, 2024 regarding contingent liabilities and assets disclosed in the Consolidated Financial Statements as of December 31, 2023 are detailed below:

15.1 Environmental claims

A neighbor of the town of Ingeniero White claims economic compensation from the Company, three other companies, the Puerto de Bahía Blanca Consortium and the Municipality of Bahía Blanca for the alleged damage to his property caused by the vibration generated by the defendant companies over the course of their activities and the poor control by the Municipality. The proceeding is in the answer stage.

15.2 Administrative claims

In the case initiated by the Company against the Federal Government to claim the amount owed, plus interest, for the debt undertaken by it during the term of validity of PEN Executive Order No. 1,053/18, the Federal Government made an appearance and answered the complaint.

15.3 Civil and Commercial Claims

In the arbitration proceeding brought by the Company against High Luck Group Limited - Argentina branch as a result of certain breaches of the Participation Assignment Agreement and the Joint Operating Agreement for the Chirete Block, the parties have filed their closing arguments.

50

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NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTA 16: RELATED PARTIES´ BALANCES AND TRANSACTIONS

16.1 Balances with related parties

As of March 31, 2024 Trade receivables Other receivables Trade payables
Current Non Current Current Current
Associates and joint ventures
CTB 443 - - -
TGS 3,518 8,172 5,647 7,952
Transener 23 - 50 23
Other related parties
SACDE 14 - 44 6,732
Other - - 483 1
3,998 8,172 6,224 14,708
As of December 31, 2023 Trade receivables Other receivables Trade payables
Current Non Current Current Current
Associates and joint ventures
CTB 571 - - -
TGS 3,006 9,040 5,218 5,992
Transener 15 - 85 14
Other related parties
SACDE 290 - 42 5,802
Other - - 455 -
3,882 9,040 5,800 11,808
51

Free translation from the original prepared in Spanish for publication in Argentina

NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 16: (Continuation)

16.2 Operations with related parties

Operations for the three-month period
Sales of goods and services (1)
Purchases of goods and services (2) Fees for services (3) Other operating income (expenses), net (4)
2024 2023 2024 2023 2024 2023 2024 2023
Associates and joint ventures
CTB 334 89 - - - - - -
TGS 9,573 2,175 (11,560) (2,285) - - - -
Transener - - (23) (6) - - 85 19
Other related parties
Fundación - - - - - - (236) - (72)
SACDE - - (16,984) (3,607) - - 86 17
Salaverri, Dellatorre, Burgio & Wetzler - - - - (38) - (9) - -
Other - - (1) (10) - - - - -
9,907 2,264 (28,568) (5,908) (38) (9) (65) (36)
(1) Corresponds mainly to advisory services provided in relation with technical assistance and sales of gas.
(2) Correspond to natural gas transportation services, and other services imputed to cost of sales for $ 11,584 million and $ 2,301 million and infrastructure works contracted to SACDE charged in property, plant and equipment for $ 16,984 million and $ 3,607 million, of which $ 3,397 million and $ 720 million, correspond to fees and general expenses calculated on the costs incurred by SACDE and/or Pampa to carry the works out for the three-month periods ended March 31, 2024 and 2023, respectively.
(3) Disclosed within administrative expenses.
(4) Corresponds mainly to donations expenses and operating leases income.
Operations for the three-month period Financial income (1) Financial expenses (2) Dividends received
2024 2023 2024 2023 2024 2023
Associates and joint ventures
OCP - - - - 6,955 -
TGS 284 88 - - - -
Other related parties
Other - - (3) (6) - -
284 88 (3) (6) 6,955 -
(1) Corresponds mainly to financial leases and accrued interest on loans granted.
(2) Corresponds to interest and commissions on loans received.
52

Free translation from the original prepared in Spanish for publication in Argentina

NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 17: ASSETS AND LIABILITIES IN CURRENCIES OTHER THAN PESOS (1)

Type Amount in currencies other than pesos Exchange rate (2) Total
03.31.2024
Total
12.31.2023
ASSETS
NON-CURRENT ASSETS
Other receivables US$ 17.1 858.00 14,668 13,045
Total non-current assets 14,668 13,045
CURRENT ASSETS
Financial assets at fair value through profit and loss US$ 480.5 858.00 412,248 390,799
U$ - - - 1
Financial assets at amortized cost US$ 104.1 858.00 89,312 84,749
Derivative financial instruments US$ 0.3 858.00 257 229
Trade and other receivables US$ 123.5 858.00 105,977 133,422
CLP 1,551.1 0.88 1,358 1,021
Cash and cash equivalents US$ 180.4 858.00 154,757 79,692
CLP 4.5 0.88 4 1
EUR 0.0 929.96 1 1
Total current assets 763,914 689,915
Total assets 778,582 702,960
LIABILITIES
NON-CURRENT LIABILITIES
Provisions US$ 161.6 858.00 138,677 112,738
Borrowings US$ 1,294.6 858.00 1,110,787 989,182
Other payables US$ 42.1 858.00 36,161 33,334
Total non-current liabilities 1,285,625 1,135,254
CURRENT LIABILITIES
Provisions US$ 4.7 858.00 4,074 3,691
Tax liabilities US$ 0.002 858.00 2 2
CLP 819.83 0.88 718 777
Salaries and social security payable US$ 0.03 858.00 23 20
Derivative financial instruments US$ 0.13 858.00 109 189
Borrowings US$ 170.2 858.00 146,030 117,493
CNY 39.7 118.72 4,713 4,388
Trade and other payables US$ 163.9 858.00 140,657 154,698
EUR 2.5 929.96 2,317 1,959
CNY 28.0 118.72 3,321 1,045
SEK 10.8 80.74 875 321
U$ 0.12 22.85 3 2
Total current liabilities 302,842 284,585
Total liabilities 1,588,467 1,419,839
Net Position Liability (809,885) (716,879)
(1) Information presented to comply with CNV Rules.
(2) Exchange rate in force on March 31, 2024 according to the BNA for U.S. dollars (US$), Euros (EUR), Yuans R. China (CNY), Chilean pesos (CLP), Swedish crowns (SEK) and Uruguayan pesos (U$).
53

Free translation from the original prepared in Spanish for publication in Argentina

NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 18: TERMINATION OF HYDROELECTRIC CONCESSIONS

On January 17, 2024, through SE Resolution No. 2/24, a new extension was granted to the Alicurá, El Chocón, Arroyito, Cerros Colorados and Piedra del Águila hydroelectric concessions for 60 calendar days at the end of the previous extensions (provided by SE Resolution No. 574/23 and 815/23), ENARSA maintaining its role as overseer. On March 18, 2024, through SE Resolution No. 33/24, the transition period was extended for 60 calendar days, effective from March 19, 2024 for the Alicurá, El Chocón, Arroyito and Cerros Colorados hydroelectric plant concessions and from April 28, 2024 for the Piedra del Águila concession.

NOTE 19 DOCUMENTATION SAFEKEEPING

On August 14, 2014, the CNV issued General Resolution No. 629/14, which introduced modifications to the provisions applicable to the keeping and conservation of corporate and accounting books and commercial documentation. To such effect, the Company have sent non-sensitive work papers and information corresponding to the periods not covered by the statute of limitations for their keeping in the AdeA - Administración de Archivos S.A.'s data warehouse located at Ruta 36, km 34.5, Florencio Varela, Provincia de Buenos Aires and in the Iron Mountain Argentina S.A.'s data warehouses located at the following addresses:

- Azara 1245 - C.A.B.A.
- Don Pedro de Mendoza 2163 -C.A.B.A.
- Amancio Alcorta 2482 C.A.B.A.
- San Miguel de Tucumán 601, Carlos Spegazzini, Municipality of Ezeiza, Province of Buenos Aires.

A list of the documentation delivered for storage, as well as the documentation provided for in Article 5.a.3) Section I, Chapter V, Title II of the PROVISIONS (2013 regulatory provisions and amending rules), is available at the Company headquarters.

54

Free translation from the original prepared in Spanish for publication in Argentina

NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM

FINANCIAL STATEMENTS (Continuation)

For the three-month period ended March 31, 2024, presented on comparative basis.

(In millions of Argentine Pesos ("$"))

NOTE 20: SUBSEQUENT EVENTS

General Ordinary and Extraordinary Shareholders' Meeting

On April 29, 2024, the Company's General Ordinary and Extraordinary Shareholders' Meeting resolved to approve the allocation of the results for the fiscal year ended December 31, 2023, with profits for $ 34,488 million which, added to appropriated translation differences in the amount of $ 146,139 million, totaled positive retained earnings for $ 180,627 million, resolving to: (i) release $ 539 million from the legal reserve on exceeding the legal cap of 20% of the share capital, considering the associated translation differences, and allocate it to the optional reserve; and (ii) allocate $ 180,627 million to the optional reserve.

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Pampa Energia SA published this content on 16 May 2024 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 16 May 2024 20:50:49 UTC.