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6-K

Pampa Energy Inc. (PAM)

6-K 2026-05-06 For: 2026-03-31
View Original
Added on July 04, 2026

UNITED STATES

SECURITIES AND EXCHANGECOMMISSION

Washington, D.C.20549

FORM 6-K

REPORT OF FOREIGNISSUERPURSUANT TO RULE 13a-16 OR 15d-16 UNDER

SECURITIES EXCHANGEACT OF 1934

For the month of May,2026

(Commission FileNo. 001-34429),

PAMPA ENERGIA S.A.(PAMPA ENERGY INC.)

Argentina

(Jurisdiction ofincorporation or organization)

Maipú 1C1084ABACity of Buenos AiresArgentina

(Address of principalexecutive offices)

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

Form 20-F ___X___ Form 40-F ______

(Indicate by check mark whether the registrant by furnishing the

information contained in this form is also thereby furnishing the

information to the Commission pursuant to Rule 12g3-2(b) under

the Securities Exchange Act of 1934.)

Yes ______ No ___X___

(If "Yes" is marked, indicate below the file number assigned to the

registrant in connection with Rule 12g3-2(b): 82- .)

This Form 6-K for Pampa Energía S.A. (“Pampa” or the “Company”) contains:

Exhibit1: UNAUDITED CONSOLIDATED CONDENSED INTERIM FINANCIAL STATEMENTS (US$)

SIGNATURE

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

Date: May 6, 2026

Pampa Energía S.A.
By: /s/ Gustavo Mariani<br><br><br>* * *
Name: Gustavo Mariani<br><br> <br>Title:   Chief Executive Officer

FORWARD-LOOKINGSTATEMENTS


This press release may contain forward-looking statements. These statements are statements that are not historical facts, and are based on management's current view and estimates offuture economic circumstances, industry conditions, company performance and financial results. The words "anticipates", "believes", "estimates", "expects", "plans" and similar expressions, as they relate to the company, are intended to identify forward-looking statements. Statements regarding the declaration or payment of dividends, the implementation of principal operating and financing strategies and capital expenditure plans, the direction of future operations and the factors or trends affecting financial condition, liquidity or results of operations are examples of forward-looking statements. Such statements reflect the current views of management and are subject to a number of risks and uncertainties. There is no guarantee that the expected events, trends or results will a ctually occur. The statements are based on many assumptions and factors, including general economic and market conditions, industry conditions, and operating factors. Any changes in such assumptions or factors could cause actual results to differ materially from current expectations.



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UNAUDITEDCONSOLIDATED CONDENSED INTERIM FINANCIAL STATEMENTS

ASOF MARCH 31, 2026

ANDFOR THE THREE-MONTH PERIOD THEN ENDED

PRESENTEDON COMPARATIVE BASIS


(In millions of U.S. dollar (“US$”))


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GLOSSARYOF 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
BBL Barrel
BO Official Gazette
CAMMESA Compañía Administradora del Mercado Eléctrico<br> Mayorista S.A.
CB Corporate Bonds
CIESA Compañía de Inversiones de Energía<br> S.A.
CITELEC Compañía Inversora en Transmisión<br> Eléctrica Citelec S.A.
CNV National Securities Commission of Argentina
CPB Central Térmica Piedra Buena
CPI Consumer's price index
CSJN Argentina’ Supreme Court of Justice
CTB CT Barragán S.A
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.
ENARGAS National Regulatory Authority of Gas
ENARSA Energía Argentina S.A.
ENRE National Regulatory Authority of Electricity
FEPASAU Fértil Pampa S.A.U.
FTR Five-Year Tariff Review
GASA Generación Argentina S.A.
HIDISA Hidroeléctrica Diamante S.A.
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GLOSSARYOF TERMS: (Continuation)

Terms Definitions
HINISA Hidroeléctrica Los Nihuiles S.A.
HPPL Hidroeléctrica Pichi Picún Leufú
IAS International Accounting Standards
IASB International Accounting Standards Board
IFRS International Financial Reporting Standards
IPIM Wholesale Domestic Price Index
LNG Liquefied Natural Gas
m^3^ Cubic meters
MAT WEM’s Forward Market
MW Megawatt
MWh Megawatt/hour
NYSE New York Stock Exchange
OCP Oleoductos de Crudos Pesados Ltd
Oldelval Oleoductos del Valle S.A.
OPGSA Operaciones de Petróleo y Gas S.A. (formerly Autotrol<br> Renovables 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
PEPE VI Pampa Energía VI Wind Farm
PESOSA Pampa<br> Energía Soluciones S.A.
PISA Pampa Inversiones S.A.
POSA Petrobras Operaciones S.A.
RDA Rincón de Aranda
RIGI Incentive<br> Regime for Large Investments
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GLOSSARYOF TERMS: (Continuation)

Terms Definitions
SACDE Sociedad Argentina de Construcción y Desarrollo<br> Estratégico S.A.
SE Secretary of Energy
SESA Southern Energy S.A.
TGS Transportadora de Gas del Sur S.A.
TJSM Termoeléctrica José de San Martín<br> S.A.
TMB Termoeléctrica Manuel Belgrano S.A.
The Company / Pampa Pampa Energía S.A.
The Group Pampa Energía S.A. and its subsidiaries
Tn/d Tons per day
Tn/y Tons per year
Transba Empresa de Transporte de Energía Eléctrica<br> por Distribución Troncal de la Provincia de Buenos Aires Transba S.A.
Transener Compañía de Transporte de Energía<br> Eléctrica en Alta Tensión Transener S.A.
US$ U.S. dollar
VAR Vientos de Arauco Renovables S.A.U.
VMOS VMOS S.A.
WEM Wholesale Electricity Market
$ Argentine Pesos
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UNAUDITEDCONSOLIDATED CONDENSED INTERIM STATEMENT OF COMPREHENSIVE INCOMEFor the three-month period ended March 31, 2026, presented on comparative basis.

(In millions of US$ – unless otherwise stated)

Note 03.31.2026 03.31.2025
Revenue 8 573 414
Cost<br> of sales 9 (380) (285)
Gross profit 193 129
Selling expenses 10.1 (26) (21)
Administrative expenses 10.2 (44) (43)
Other operating income 10.3 9 32
Other operating expenses 10.3 (19) (22)
Impairment<br> of inventories (1) -
Impairment of financial assets (1) -
Share of profit from associates<br> and joint ventures 5.1.2 67 46
Operating<br> income 178 121
Financial<br> income 10.4 4 33
Financial<br> costs 10.4 (39) (41)
Other<br> financial results 10.4 7 37
Financial<br> results, net (28) 29
Profit<br> before income tax 150 150
Income tax 10.5 66 4
Profit<br> of the period 216 154
Other<br> comprehensive income
Items<br> that will not be reclassified to profit or loss
Exchange<br> differences on translation 74 17
Items<br> that may be reclassified to profit or loss
Derivatives<br> ^(1)^ (231) -
Income<br> tax 81 -
Exchange<br> differences on translation 44 16
Other<br> comprehensive (loss) income of the period (32) 33
Total<br> comprehensive income of the period 184 187
^(1)^ See<br> Note 12.7
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UNAUDITEDCONSOLIDATED CONDENSED INTERIM

STATEMENTOF COMPREHENSIVE INCOME (Continuation)

Forthe three-month period ended March 31, 2026, presented on comparative basis.

(In millions of US$ – unless otherwise stated)

Note 03.31.2026 03.31.2025
Total<br> profit of the period attributable to:
Owners<br> of the company 214 153
Non-controlling interest 2 1
216 154
Total comprehensive<br> income of the period attributable to:
Owners<br> of the Company 182 186
Non-controlling interest 2 1
184 187
Earnings<br> per share attributable to equity holders of the Company
Total<br> basic and diluted earning per share 13.2 0.16 0.11

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

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UNAUDITEDCONSOLIDATED CONDENSED INTERIM STATEMENTOF FINANCIAL POSITIONAs of March 31, 2026, presented on comparative basis.

(In millions of US$ – unless otherwise stated)

Note 03.31.2026 12.31.2025
ASSETS
NON-CURRENT<br> ASSETS
Property,<br> plant and equipment 11.1 3,384 3,303
Intangible<br> assets 11.2 88 89
Right-of-use<br> assets 30 36
Deferred<br> tax asset 11.3 293 43
Investments<br> in associates and joint ventures 5.1.2 1,261 1,059
Financial<br> assets at fair value through profit and loss 12.1 33 33
Trade<br> and other receivables 12.2 66 43
Total<br> non-current assets 5,155 4,606
CURRENT<br> ASSETS
Inventories 11.4 238 231
Financial<br> assets at fair value through profit and loss 12.1 441 366
Derivatives - 52
Trade<br> and other receivables 12.2 947 614
Cash<br> and cash equivalents 12.3 236 725
Total<br> current assets 1,862 1,988
Total<br> assets 7,017 6,594
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UNAUDITEDCONSOLIDATED CONDENSED INTERIM STATEMENT

OFFINANCIAL POSITION (Continuation)

Asof March 31, 2026, presented on comparative basis.

(In millions of US$ – unless otherwise stated)

Note 03.31.2026 12.31.2025
SHAREHOLDERS´<br> EQUITY
Share<br> capital 36 36
Share<br> capital adjustment 191 191
Share<br> premium 517 516
Treasury<br> shares adjustment 1 1
Treasury<br> shares cost (54) (54)
Legal<br> reserve 44 44
Voluntary<br> reserve 2,399 2,399
Other<br> reserves (13) (12)
Other<br> comprehensive income 18 124
Retained<br> earnings 639 351
Equity<br> attributable to owners of the company 3,778 3,596
Non-controlling<br> interest 11 9
Total<br> equity 3,789 3,605
LIABILITIES
NON-CURRENT<br> LIABILITIES
Provisions 11.5 73 100
Income<br> tax and minimum notional income tax provision 11.6 26 26
Deferred<br> tax liability 11.3 46 56
Tax<br> liabilities 11.7 220 212
Defined<br> benefit plans 29 26
Borrowings 12.4 1,841 1,844
Trade<br> and other payables 12.5 81 86
Total<br> non-current liabilities 2,316 2,350
CURRENT<br> LIABILITIES
Provisions 11.5 14 13
Income<br> tax liability 11.6 197 83
Tax<br> liabilities 11.7 69 56
Defined<br> benefit plans 7 6
Salaries<br> and social security payable 24 36
Derivatives 181 -
Borrowings 12.4 39 48
Trade<br> and other payables 12.5 381 397
Total<br> current liabilities 912 639
Total<br> liabilities 3,228 2,989
Total<br> liabilities and equity 7,017 6,594

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

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UNAUDITEDCONSOLIDATED CONDENSED INTERIM STATEMENT OF CHANGES IN EQUITYFor the three-month period ended March 31, 2026, presented on comparative basis.

(In millions of US$ – unless otherwise stated)

Equity<br> holders of the company Retained earnings
Share<br> capital Share<br> capital adjustment Share<br> premium Treasury<br> shares adjustment Treasury<br> shares cost Legal<br> reserve Voluntary<br> reserve Other<br> reserves Other<br> comprehensive income (loss) Unappropiated<br> retained earnings Equity<br> attributable to owners Non-controlling<br> interest Total<br> equity
Balance<br> as of December 31, 2024 36 191 516 1 (7) 44 1,657 (13) 119 742 3,286 9 3,295
Profit for the three-month<br> period - - - - - - - - - 153 153 1 154
Other comprehensive income<br> for the three-month period - - - - - - - - 16 17 33 - 33
Balance<br> as of March 31, 2025 36 191 516 1 (7) 44 1,657 (13) 135 912 3,472 10 3,482
Voluntary reserve constitution - - - - - - 742 - - (742) - - -
Treasury shares acquisition - - - - (47) - - - - - (47) - (47)
Dividens ditribution - - - - - - - - - - - (1) (1)
Stock compensation plans - - - - - - - 1 - - 1 - 1
Profit for the complementary<br> nine-month period - - - - - - - - - 224 224 - 224
Other comprehensive loss for the complementary nine-month<br> period - - - - - - - - (11) (43) (54) - (54)
Balance<br> as of December 31, 2025 36 191 516 1 (54) 44 2,399 (12) 124 351 3,596 9 3,605
Stock compensation plans - - 1 - - - - (1) - - - - -
Profit for the three-month<br> period - - - - - - - - - 214 214 2 216
Other comprehensive (loss) income for the three-month<br> period - - - - - - - - (106) 74 (32) - (32)
Balance<br> as of March 31, 2026 36 191 517 1 (54) 44 2,399 (13) 18 639 3,778 11 3,789

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

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UNAUDITEDCONSOLIDATED CONDENSED INTERIM STATEMENT OF CASH FLOWS

Forthe three-month period ended March 31, 2026, presented on comparative basis.

(In millions of US$ – unless otherwise stated)

Note 03.31.2026 03.31.2025
Cash<br> flows from operating activities:
Profit of the period 216 154
Adjustments to reconcile<br> net profit to cash flows from operating activities 14.1 34 3
Changes in operating<br> assets and liabilities 14.2 (483) (67)
Net<br> cash (used in) generated by operating activities (233) 90
Cash<br> flows from investing activities:
Payment for property, plant<br> and equipment acquisitions (265) (162)
Collection for sales of public securities and shares,<br> net 87 151
Suscription of mutual<br> funds, net (9) -
Capital integration<br> in companies (16) (31)
Payment for right-of-use - (1)
Net<br> cash used in investing activities (203) (43)
Cash<br> flows from financing activities:
Proceeds from borrowings 12.4 - 45
Payment of  borrowings 12.4 (23) (70)
Payment of  borrowings<br> interests 12.4 (22) (38)
Repurchase and redemption<br> of corporate bonds 12.4 (2) (360)
Payments of leases (6) (1)
Net<br> cash used in financing activities (53) (424)
Decrease<br> in cash and cash equivalents (489) (377)
Cash<br> and cash equivalents at the beginning of the year 12.3 725 738
Decrease in cash and cash<br> equivalents (489) (377)
Cash<br> and cash equivalents at the end of the period 12.3 236 361

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<br><br>FINANCIAL STATEMENTS<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE1: GENERAL INFORMATION

1.1General information of the Company

The Company’s principal executive office is located in Maipú 1, Autonomous City of Buenos Aires in Argentina, which participates in the energy sector, mainly in the production of oil and gas and power generation.

In the oil and gas segment, the Company develops an important activity in gas and oil exploration and production, reaching a production level in the three-month period ended March 31, 2026 of 13.8 million m3/day of natural gas and 19.2 thousand boe/day of oil in 9 productive areas and 2 exploratory areas in Argentina. Its main production blocks are located in the Province of Neuquén. Additionally, the Company participates in SESA, an entity dedicated to natural gas liquefaction.

In the generation segment, the Company, directly and through its subsidiaries and joint ventures, has a 5,472 MW installed capacity as of March 31, 2026, which represents approximately 12% of Argentina’s installed capacity, and being one of the largest independent generators in the country.

In the petrochemicals segment, the Company operates 2 high-complexity plants in Argentina producing styrene, synthetic rubber and polystyrene, with a share ranging between 83% and 100%, in the domestic market.

Finally, through the holding, transportation and others segment, the Company participates in the electricity transmission and gas transportation businesses. In the transmission business, the Company jointly controls Citelec, which has a controlling interest in Transener, a company engaged in the operation and maintenance of a 22,446 km high-voltage electricity transmission network in Argentina with an 86% market share of Argentina’s high-voltage transmission lines. 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. Additionally, the Company participates in VMOS, an entity that will operate an oil pipeline connecting Vaca Muerta with an offshore export port. Finally, the segment includes advisory services provided to related companies.

1.2Economic context in which the Company operates

The Company operates in an economic context which main variables are experiencing volatility as a result of political and economic events both in the domestic and international spheres.

During the first quarter of 2026, the Argentine economy continued to undergo an economic stabilization process and recorded a cumulative 9.4% inflation, with monthly levels of around 3%, considering the CPI.

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE1: (Continuation)

At the international level, during the first quarter of 2026 geopolitical tensions in the Middle East intensified due to the military conflict in the region, affecting the international energy market. In particular, attacks on energy infrastructure and the disruption of maritime traffic through the Strait of Hormuz, a strategic corridor for oil trade, led to restrictions on crude oil production and exports, and increased logistics costs which in turn drove the rebound in Brent crude oil prices in the international market.

During the first quarter of 2026, Brent crude oil prices recorded a significant increase, rising from levels close to US$ 60/bbl in early 2026 to values above US$ 100/bbl by the end of March 2026.

In this context, during the first quarter of 2026 international organizations revised their estimates for the global economy, adjusting inflation forecasts upward and moderating global growth prospects for the current fiscal year.

The context of volatility and uncertainty continues as of the date of issuance of these Consolidated Condensed Interim Financial Statements and it is not possible to foresee the macroeconomic and financial situation of Argentina or the international context’ evolution or what new measures might be announced.

The Company’s Management permanently monitors the evolution of the variables affecting its business to define its course of action and identify potential impacts on its assets and financial position.

The Company’s Consolidated Condensed Interim Financial Statements should be read in light of these circumstances.

NOTE2: REGULATORY FRAMEWORK

The main regulations applicable to the Company’s activities, identified during 2026, are detailed below. It is worth highlighting that this is not an exhaustive list of all regulations the Company is subject to.

2.1 Oil and Gas

2.1.1 Assignment of gas contracts with ENARSA

SE Resolution No. 54/26 extended by 180 calendar days the deadline for producers, opting into the assignment of ENARSA contracts to distributors and CAMMESA, to submit the corresponding notice to the SE. Distributors are required to opt in within the same term. In turn, ENARGAS will oversee the assignment and volume allocation process through a procedure to be determined jointly with ENARSA.

2.1.2 Compensation for Natural Gas consumption subsidies

ENARGAS Resolution No. 101/26 repealed ENARGAS Resolution No. 125/25 and approved a new reporting procedure related to the Focused Energy Subsidies (SEF) regime created by Executive Order No. 943/25 under the unification of national energy subsidies and the elimination of income-level segmentation, to be replaced by a user allocation scheme distinguishing between subsidized and non-subsidized users.

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE2: (Continuation)

However, ENARGAS Resolution No. 101/26 preserves the criterion whereby subsidy compensations are received by natural gas producers and applied as a deduction in billings to distributors.

Within the framework of the new SEF regime, PEN Executive Order No. 26/26 provides that the price awarded to each producer participating in the Gas.Ar Plan may be above, below or in line with the Uniform Annual Price (“PAU”), depending on the time of year and taking into account the applicable seasonal adjustment factor.

In the months in which the PAU is higher than the Gas.Ar Plan price, the difference will be recorded as a credit balance, which will be applied to offset the months in which the opposite situation occurs. This mechanism will under no circumstances affect the price receivable by producers under the Gas.Ar Plan. Along the same line, SE Resolution No. 23/26 establishes the PAU to be passed on to end users under the natural gas supply agreements entered into under the Gas.Ar Plan.

2.2 Generation
2.2.1 MAT<br> Regime
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On March 27, 2026, SE Resolution No. 78/26 amended SE Resolution No. 400/25 and, effective April 1, 2026, permanently established the monthly filing regime for energy and capacity contracts within the WEM with a minimum of 5 days’ advance notice.

2.2.2 Energy Plus Contracts

As of March 31, 2026, the Company no longer markets capacity and energy under Energy Plus contracts.

2.2.3 Remuneration for assigned generation

SE Resolution No. 34/26 updated the remuneration values for assigned generation, establishing 2% increases applicable to the economic transactions for January 2026. The maximum WEM spot price for January 2026 amounted to $14,669/MWh.

2.3 Gas Transportation
2.3.1 TGS’s<br> Tariff situation
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As part of the monthly updates to natural gas transportation tariffs, in 2026 TGS received monthly increases of 2.03%, 2.63%, 2.27%, and 1.94%, effective January through April 2026, respectively.

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE2: (Continuation)

2.3.2 Contractual<br> reorganization

Under Executive Order No. 49/26, the Federal Government extended the emergency in the National Energy Sector for the natural gas transportation and distribution segments until December 31, 2027.

Within that framework, SE Resolution No. 66/26 provided for the reconfiguration of the Republic of Argentina’s natural gas transportation system aiming to optimize use, ensure adequate supply and improve the system’s operational efficiency. It also instructed ENARGAS to adjust tariff schemes, service regulations and capacity allocation mechanisms under its regulatory authority, while preserving the revenue determined in the FTR as an essential condition.

On April 14, 2026, ENARGAS Resolution No. 409/26 instructed licensees to enter into new firm transportation contracts, effective May 2026, in line with the guidelines set forth in SE Resolution No. 66/26. It also recognized the firm nature of certain exchange and displacement contracts specified in the resolution.

On April 29, 2026, through ENARGAS Resolution No. 448/26, the tariff schedules incorporating the reorganization were published. The application of such resolution did not have a significant impact on TGS’s financial position or results of operations.

2.4 Transmission

Transener and Transba tariff situation

Within the framework of the FTR carried out in 2025, ENRE continued applying the monthly tariff adjustment mechanism based on the CPI and IPIM indexes and established 1.88%, 2.55%, 2.07%, 1.61% and 2.35% tariff increases from January through May 2026, respectively.

2.5 Tax regulations

2.5.1 Income tax

Taxinflation adjustment

Law No. 27,802, published in the BO on March 6, 2026, establishes the adjustment of tax losses carryforwards generated in fiscal years beginning on or after January 1, 2025, inclusive, considering the variation in the CPI between the closing month of the fiscal year in which they arise and the closing month of the fiscal year being assessed.

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE2: (Continuation)

2.5.2 Other Regimes

2.5.2.1Hydrocarbon Export Duties Regime

Pursuant to PEN Executive Order No. 488/20, oil, natural gas and liquefied gas exports are exempt from export duties provided that the Brent crude oil price published by the SE at the end of each month is equal to or lower than US$ 45/bbl. Under this regime, the export duty rate is subject to a gradual increase of up to 8% as the reference price increases, reaching 8% when the price is equal to or higher than US$ 60/bbl.

PEN Executive Order No. 59/26 updated the export duties regime applicable to crude oil and introduced a distinction between conventional and unconventional crude oil production. Under the updated regime, conventional crude oil exports are exempt from export duties when the international Brent crude oil price is equal to or lower than US$ 65/bbl, and are subject to a rate increasing gradually up to 8% according to a formula based on the increase in the reference price, reaching 8% when the price is equal to or higher than US$ 80/bbl. The Executive Order entered into effect on February 20, 2026, pursuant to SE Resolution No. 42/26.

As of March 31, 2026, crude oil and natural gas exports are subject to an 8% export duty rate.

2.5.2.2RIGI amendment

Pursuant to Executive Order No. 105/26, dated February 19, 2026, the deadline to apply for the RIGI was extended until July 8, 2027. In addition, the decree expanded the list of eligible projects to include, among others: (i) the construction of infrastructure for the collection, treatment, processing, fractionation, and liquefaction of natural gas, as well as the transportation of natural gas intended for the export of liquefied natural gas; (ii) the exploration and production of new onshore liquid and gaseous hydrocarbon developments located in areas that, at the time of submitting the application for adhesion, do not have existing investments in exploration or production activities; and (iii) the exploration and production of new offshore liquid and gaseous hydrocarbon developments. Additionally, it set a minimum investment threshold of US$ 600 million for onshore developments and US$ 200 million for offshore developments.

Where activities not covered by the RIGI coexist within the same hydrocarbon area, segregation and traceability must be ensured through independent measurement systems and the Single Project Vehicle (“SPV”) must be the exclusive owner of the assets, rights, and operations associated with the RIGI-eligible project.

NOTE3: BASIS OF PREPARATION

These Consolidated Condensed Interim Financial Statements for the three-month period ended March 31, 2026 have been prepared pursuant to the provisions of IAS 34, “Interim Financial Information” as issued by the IASB, are expressed in millions of US dollars and were approved for their issuance by the Company’s Board of Directors on May 6, 2026.

The information included in the Consolidated Condensed Interim Financial Statements is recorded and presented in US dollars, which is the Company’s functional currency.

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE3: (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 derivatives and they should be read together with the Consolidated Financial Statements as of December 31, 2025, which have been prepared under IFRS Accounting Standards as issued by the IASB.

These Consolidated Condensed Interim Financial Statements for the three-month period ended March 31, 2026 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, 2026, 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, 2025 and for the three-month period ended March 31, 2025, disclosed for comparative purposes, arises from the Consolidated Financial Statements as of those dates.

Additionally, certain non-significant reclassifications have been made to the Consolidated Financial Statements´ figures disclosed for comparative purposes to keep the consistency in the presentation with the current period figures.

NOTE4: 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, 2025.

4.1New accounting standards, amendments and interpretations issued by the IASB effective as of December 31, 2026 and adopted by the Company

The Company has applied the following standards and / or amendments for the first time as of January 1, 2026:

- IFRS<br> 9 and IFRS 7 - “Financial Instruments and Disclosures” (amended in May 2024 and<br> December 2024).
- IMPROVEMENTS<br> TO IFRS – Volume 11 (July 2024)
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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.

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE4: (Continuation)

4.2New accounting standards, amendments and interpretations issued by the IASB not yet effective and not early adopted by the Company

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

As of March 31, 2026, the Company has not early applied the following standards and/or amendments:

- IFRS<br> 18 - “Presentation and Disclosure in Financial Statements”: issued in April 2024.<br> It establishes new presentation and disclosure requirements aiming to ensure that financial<br> statements provide relevant information faithfully representing an entity’s situation.<br> The standard does not affect the recognition or measurement of financial statement items;<br> however, it introduces new requirements for improved comparability among entities. Specifically,<br> the following are worth mentioning: (i) the classification of income and expenses into operating,<br> investing and financing categories; (ii) the incorporation of required subtotals; and (iii)<br> the disclosure of performance measures defined by management. The standard is applicable<br> retrospectively to fiscal years and interim periods beginning on or after January 1, 2027,<br> allowing for early adoption. The Company is currently analyzing the disclosure impact on<br> the financial statements in relation to the application of the standard.
- IFRS<br> 19 - “Subsidiaries without Public Accountability: Disclosures”: issued in May<br> 2024. It allows for reduced disclosures for entities without public accountability that are<br> subsidiaries of an entity preparing consolidated financial statements available for public<br> use and in compliance with IFRS accounting standards. Subsequently, in August 2025, amendments<br> were introduced reducing disclosure requirements related to supplier financing arrangements,<br> lack of exchangeability of currency and international tax reform, and replacing disclosure<br> requirements regarding management-defined performance measures with a cross-reference to<br> IFRS 18 for entities using such measures. The standard and its amendments are effective for<br> fiscal periods beginning on or after January 1, 2027, with early adoption permitted. The<br> application of this standard will not impact the Company’s operating results or financial<br> position.
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- IAS 21<br> - “Effects of Changes in Foreign Exchange Rates”: In November 2025, IAS 21<br> was amended regarding the translation of financial statements for presentation in a currency<br> different from the functional currency, and certain disclosure requirements were introduced.<br> In particular, for the translation from a non-hyperinflationary functional currency to a<br> hyperinflationary presentation currency, it establishes that all amounts (assets, liabilities,<br> equity items, income and expenses, including comparative information) are translated at the<br> closing exchange rate. The amendments are retrospectively applicable for annual periods beginning<br> on or after January 1, 2027, with early adoption permitted. The application of this amendments<br> will not impact the Company’s information.
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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE5: GROUP STRUCTURE

5.1 Interest in subsidiaries, associates and joint ventures
5.1.1 Subsidiaries<br> information
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Unless otherwise indicated, the country is also the principal place where the subsidiary carries out its activities.

03.31.2026 12.31.2025
Company Country Main<br> activity Direct<br> and indirect participation % Direct<br> and indirect participation %
Recursos Energéticos<br> S.A.U. Argentina Generation 100.00% 100.00%
EISA Uruguay Investment 100.00% 100.00%
Enecor<br> S.A. Argentina Electricity<br> transportation 70.00% 70.00%
FEPASAU Argentina Fertilizers 100.00% 100.00%
Fideicomiso<br> CIESA Argentina Investment 100.00% 100.00%
GASA Argentina Investment 100.00% 100.00%
HIDISA Argentina Generation 61.00% 61.00%
HINISA Argentina Generation 52.04% 52.04%
OCP Gran<br> Cayman Investment 100.00% 100.00%
OPGSA Argentina Oil 100.00% 100.00%
PAMPA<br> E&P S.A.U. Argentina Oil 100.00% 100.00%
PB18 Ecuador Oil 100.00% 100.00%
PEB Bolivia Investment 100.00% 100.00%
PECSA Chile Trader 100.00% 100.00%
PESOSA Argentina Trader 100.00% 100.00%
Petrolera<br> San Carlos S.A. Venezuela Oil 100.00% 100.00%
PISA Uruguay Investment 100.00% 100.00%
VAR Argentina Generation 100.00% 100.00%
Vientos Solutions Argentina<br> S.A.U. Argentina Advisory<br> services 100.00% 100.00%
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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE5: (Continuation)

5.1.2 Associates<br> 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:

Information<br> about the issuer
Main<br> activity Date Share<br> capital Profit<br> (Loss) of the period Equity Direct<br> and indirect participation %
Associates
SESA Gas<br> treatment 03.31.2026 1.00 1 96 20.00%
VMOS Hydrocarbon<br> transportation 03.31.2026 115.00 8 382 10.20%
Joint<br> ventures
CIESA<br> ^(1)^ Investment 03.31.2026 0.46 63 1,399 50.00%
Citelec<br> ^(2)^ Investment 03.31.2026 0.40 24 384 50.00%
CTB Generation 03.31.2026 6.00 42 526 50.00%

^(1)^The Company holds a 50% interest in CIESA, a company that holds a 53.83% interest in TGS’s capital stock; therefore, the Company has a 26.91% interest in TGS.

As of March 31, 2026, TGS’s common shares and ADR traded on the BCBA and NYSE were listed at $ 10,150.00 and US$ 34.61, respectively, conferring Pampa’s holding an approximate market value of US$ 1,402 million ($ 2,056,352 million).

^(2)^The Company has 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, 2026, Transener’s common share price listed at the BCBA was $ 4,190.00, conferring Pampa’s indirect holding an approximate market value of US$ 354.91 million ($ 490,483 million).

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE5: (Continuation)

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

03.31.2026 12.31.2025
Disclosed<br> in non-current assets
Associates
VMOS 44 31
SESA 19 12
Total<br> associates 63 43
Joint<br> ventures
CIESA 743 618
Citelec 192 156
CTB 263 242
Total<br> joint ventures 1,198 1,016
Total associates<br> and joint ventures 1,261 1,059

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

03.31.2026 03.31.2025
Associates
SESA 3 -
VMOS 1 -
Total<br> associates 4 -
Joint<br> ventures
CIESA 30 25
Citelec 12 8
CTB 21 13
Total<br> joint ventures 63 46
Total<br> associates and joint ventures 67 46
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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE5: (Continuation)

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

03.31.2026 03.31.2025
At<br> the beginning of the year 1,059 993
Capital<br> contribution 16 31
Share<br> of profit 67 46
Exchange differences<br> on translation 119 33
At<br> the end of the period 1,261 1,103
5.1.3 CIESA<br> - TGS
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PeritoMoreno Gas Pipeline (GPM) Expansion

In March 2026, TGS conducted a public call for tenders to award incremental transport capacity associated with the expansion of the GPM. TGS received capacity demand requests for more than 32 million m³/day. On April 15, 2026, 5.4 million m³/day were awarded. The remaining capacity will be offered and awarded by TGS in the upcoming months.

The Company and certain subsidiaries participated in TGS’s call and were awarded a total volume of 3.2 million m³/day over a 35-year term.

Weatherevent

During the period ended March 31, 2026, TGS recorded $3,384 million losses arising from expenses related to the weather event of March 7, 2025, which resulted in the flooding of the Cerri Complex, and received $ 11,865 million from insurance companies as an advance payment on account of the total settlement of the claim.

5.1.4 SESA

SanMatías Pipeline Project

In addition to the gas liquefaction project to be developed by SESA, which includes the installation of two liquefaction vessels in the Gulf of San Matías, San Matías Pipeline S.A. (“SMP”) will be responsible for the construction and operation of a dedicated pipeline connecting gas production from Vaca Muerta, in Neuquén, to the Gulf of San Matías, in Río Negro, to supply the liquefaction vessels intended for LNG exports. The project involves the construction of a 36-inch diameter pipeline of approximately 470 km in length with a transportation capacity of up to 28 million m³/day. The Company will hold a 20% participation in the project.

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE5: (Continuation)

5.2 Oil and gas participations

Assets and liabilities as of March 31, 2026 and December 31, 2025 and the production cost of the Joint Operations and Consortiums in which the Company participates corresponding to the three-month periods ended March 31, 2026 and 2025 are detailed below:

03.31.2026 12.31.2025
Non-current assets 135 122
Current assets 8 9
Total assets 143 131
Non-current Liabilities 44 40
Current Liabilities 17 21
Total liabilities 61 61
03.31.2026 03.31.2025
Production cost 14 23

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

NOTE6: RISKS

6.1Critical 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, 2025.

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE6: (Continuation)

6.2Financial 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.

NOTE7: SEGMENT INFORMATION

The Company is a fully integrated power company in Argentina, which participates mainly in the production of oil and gas and power generation.

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:

Oiland Gas, principally consisting of the Company’s interests in oil and gas areas, the activities of Pampa Energía S.A.

  • Sucursal Dedicada Proyecto RDA and direct and indirect interest in SESA and PECSA.

Generation, principally consisting of the Company’s direct and indirect interests in HINISA, HIDISA, 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, PEPE IV and PEPE VI wind farms.

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

Holding,Transportation and Others, principally consisting of our stake in joint businesses CITELEC, CIESA and their respective subsidiaries holding the concession over high-voltage electricity transmission and gas transportation, respectively, the direct and indirect interests in VMOS, Oldelval and OCP, holding activities, and other investment activities.

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

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE7: (Continuation)

in<br> million of US
Consolidated<br> profit and loss information for the three-month period ended March 31, 2026 Oil<br> and gas Generation Petrochemicals Holding,<br> Transportation and others Eliminations Consolidated
Revenue<br> - local market 111 279 53 8 - 451
Revenue<br> - foreign market 87 - 35 - - 122
Intersegment revenue 49 - - - (49) -
Cost of sales (178) (170) (81) - 49 (380)
Gross<br> profit 69 109 7 8 - 193
Selling<br> expenses (22) (1) (3) - - (26)
Administrative<br> expenses (21) (11) (2) (10) - (44)
Other<br> operating income 2 4 - 3 - 9
Other<br> operating expenses (3) (5) (5) (6) - (19)
Impairment<br> of inventories (1) - - - - (1)
Impairment<br> of financial assets (1) - - - - (1)
Share<br> of profit from associates and joint ventures 3 21 - 43 - 67
Operating<br> income (loss) 26 117 (3) 38 - 178
Financial income - 4 - - - 4
Financial costs (25) (9) - (5) - (39)
Other financial results 10 20 (9) (14) - 7
Financial<br> results, net (15) 15 (9) (19) - (28)
Profit<br> (Loss) before income tax 11 132 (12) 19 - 150
Income<br> tax 94 (42) 4 10 - 66
Profit<br> (Loss) of the period 105 90 (8) 29 - 216
Depreciation and amortization 87 35 - - - 122

All values are in US Dollars.

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE7: (Continuation)

in<br> million of US
Consolidated<br> profit and loss information for the three-month period ended March 31, 2026 Oil<br> and gas Generation Petrochemicals Holding,<br> Transportation and others Eliminations Consolidated
Total<br> profit (loss) of the period attributable to:
Owners of the company 105 88 (8) 29 - 214
Non-controlling interest - 2 - - - 2
Consolidated<br> financial position information as of March 31, 2026
Assets 2,977 2,691 139 1,275 (65) 7,017
Liabilities 2,184 581 59 469 (65) 3,228
Net<br> book values of property, plant and equipment ^(1)^ 2,013 1,336 - 35 - 3,384
Additional<br> consolidated information as of March 31, 2026
Increases<br> in property, plant and equipment 196 2 - 1 - 199

All values are in US Dollars.

^(1)^ Assets<br> located in Argentina
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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE7: (Continuation)

in<br> million of US
Consolidated<br> profit and loss information for the three-month period ended March 31, 2025 Oil<br> and gas Generation Petrochemicals Holding,<br> Transportation and others Eliminations Consolidated
Revenue<br> - local market 94 194 57 7 - 352
Revenue<br> - foreign market 26 1 35 - - 62
Intersegment<br> revenue 26 - - - (26) -
Cost<br> of sales (118) (103) (90) - 26 (285)
Gross<br> profit 28 92 2 7 - 129
Selling<br> expenses (17) (1) (3) - - (21)
Administrative<br> expenses (21) (11) (2) (9) - (43)
Other<br> operating income 4 6 19 3 - 32
Other<br> operating expenses (3) (1) (4) (14) - (22)
Share<br> of profit from associates and joint ventures - 13 - 33 - 46
Operating<br> income (9) 98 12 20 - 121
Financial<br> income - 6 27 - - 33
Financial<br> costs (25) (12) - (4) - (41)
Other<br> financial results (4) 31 (1) 11 - 37
Financial<br> results, net (29) 25 26 7 - 29
Profit<br> (Loss) before income tax (38) 123 38 27 - 150
Income<br> tax (11) 2 4 9 - 4
Profit<br> (Loss) of the period (49) 125 42 36 - 154
Depreciation<br> and amortization 52 31 1 - - 84

All values are in US Dollars.

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE7: (Continuation)

in<br> million of US
Consolidated<br> profit and loss information for the three-month period ended March 31, 2025 Oil<br> and gas Generation Petrochemicals Holding,<br> Transportation and others Eliminations Consolidated
Total<br> profit (loss) of the period attributable to:
Owners<br> of the company (49) 124 42 36 - 153
Non-controlling<br> interest - 1 - - - 1
Consolidated<br> financial position information as of December 31, 2025
Assets 2,513 3,046 147 931 (43) 6,594
Liabilities 1,737 668 73 554 (43) 2,989
Net<br> book values of property, plant and equipment ^(1)^ 1,896 1,370 - 37 - 3,303
Additional<br> consolidated information as of March 31, 2025
Increases<br> in property, plant and equipment and intangible assets 147 9 3 3 - 162

All values are in US Dollars.

^(1)^ Assets located in Argentina

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE8: REVENUE


03.31.2026 03.31.2025
Gas<br> sales 88 94
Oil<br> sales 107 22
Other<br> sales 3 4
Oil<br> and gas sales subtotal ^(1)^ 198 120
Energy<br> sales in Spot Market 163 76
Energy<br> sales by supply contracts 99 90
Fuel<br> supply 16 27
Other<br> sales 1 2
Generation<br> sales subtotal 279 195
Products<br> from catalytic reforming sales 40 43
Styrene<br> sales 13 13
Synthetic<br> rubber sales 17 20
Polystyrene<br> sales 18 16
Petrochemicals<br> sales subtotal 88 92
Technical<br> assistance and administration services sales 8 7
Holding,<br> Transportation and others subtotal 8 7
Total<br> revenue ^(2) (3)^ 573 414
^(1)^ See<br> Note 12.7.
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^(2)^ Revenues<br> from CAMMESA represent 41% and 44% of total revenues from sales for the three-month periods<br> ended March 31, 2026 and 2025, respectively, and correspond mainly to the Oil and gas and<br> Generation segments.
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^(3)^ Including<br> US$ 7.9 million and US$ 1.9 million in the Oil and gas segment and US$ 1.5 million and US$<br> 2 million in the Petrochemical segment corresponding to export duties for the three-month<br> periods ended March 31, 2026 and 2025, respectively.
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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE9: COST OF SALES


03.31.2026 03.31.2025
Inventories at the beginning<br> of the year 231 223
Plus: Charges of the period
Purchases of inventories,<br> energy and gas 117 98
Salaries and social<br> security charges 21 23
Employees benefits 3 4
Defined benefit plans 1 1
Works contracts,<br> fees and compensation for services 36 33
Property, plant and<br> equipment depreciation 113 81
Intangible assets amortization 1 1
Right-of-use assets<br> amortization 6 -
Energy transportation 2 3
Transportation and freights 13 11
Consumption of materials 6 8
Penalties 2 1
Maintenance 17 16
Canons and royalties 34 20
Environmental control 1 1
Rental and insurance 7 5
Surveillance and security 2 2
Taxes, rates and contributions 3 2
Other 2 2
Total<br> charges of the period 387 312
Less:<br> Inventories at the end of the period (238) (250)
Total<br> cost of sales 380 285

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE10: OTHER ITEMS OF THE STATEMENT OF COMPREHENSIVE INCOME

10.1Selling expenses


03.31.2026 03.31.2025
Salaries<br> and social security charges 1 1
Fees<br> and compensation for services 1 -
Taxes,<br> rates and contributions 3 4
Transportation<br> and freights 20 15
Other 1 1
Total<br> selling expenses 26 21

10.2Administrative expenses

03.31.2026 03.31.2025
Salaries<br> and social security charges 18 18
Employees<br> benefits 1 2
Defined<br> benefit plans 1 2
Fees<br> and compensation for services 14 10
Directors'<br> and Syndics' fees 1 1
Property,<br> plant and equipment depreciation 2 2
Maintenance 1 2
Transport and per diem 1 -
Taxes, rates and contributions 3 4
Other 2 2
Total<br> administrative expenses 44 43


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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE10: (Continuation)

10.3Other operating income and expenses

03.31.2026 03.31.2025
Other operating<br> income
Insurance recovery 2 8
Recovery of provision<br> for contingencies - 17
Dividends received 2 -
Commercial interests 4 3
Other 1 4
Total<br> other operating income 9 32
Other<br> operating expenses
Provision for contingencies (4) (10)
Results from derecognition<br> of property, plant and equipment (2) -
Tax on bank transactions (5) (7)
Donations and contributions (1) -
Costs of concessions<br> agreements completion (1) -
Other (6) (5)
Total<br> other operating expenses (19) (22)


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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE10: (Continuation)

10.4Financial results

03.31.2026 03.31.2025
Financial<br> income
Financial interests 4 33
Total<br> financial income 4 33
Financial<br> costs
Financial<br> interests ^(1)^ (32) (35)
Fiscal<br> interests (5) (4)
Bank<br> and other financial expenses (2) (2)
Total<br> financial costs (39) (41)
Other<br> financial results
Foreign<br> currency exchange difference, net (3) 6
Changes<br> in the fair value of financial instruments 11 32
Result<br> from present value measurement (1) (1)
Total<br> other financial results 7 37
Total<br> financial results, net (28) 29

^^

^(1)^ Net<br> of US$ 3 million of borrowing costs capitalized in property, plant and equipment corresponding<br> to the three-month period ended March 31, 2026. There are no borrowing costs capitalized<br> in the three-month period ended March 31, 2025.

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE10: (Continuation)

10.5Income tax

The breakdown of income tax charge is:


03.31.2026 03.31.2025
Current<br> tax 113 52
Deferred<br> tax (179) (56)
Total income<br> tax - Profit (66) (4)

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

03.31.2026 03.31.2025
Profit<br> before income tax 150 150
Current<br> income tax rate 35% 35%
Income<br> tax at the statutory tax rate 53 53
Share<br> of profit from companies (23) (16)
Effects<br> of exchange differences and other results associated with the valuation of the currency, net (41) 27
Effects<br> of valuation of property, plant and equipment, intangible assets and financial assets (118) (94)
Effect<br> for tax inflation adjustment 51 33
Other 12 (7)
Total income<br> tax - Profit (66) (4)
| 32 |

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| ![](image_002.jpg) |

| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE11: NON-FINANCIAL ASSETS AND LIABILITIES

11.1 Property, plant and equipment
Original<br> values
--- --- --- --- --- --- --- --- --- --- --- ---
Type<br> of good At<br> the beginning Increases<br> ^(1)^ Transfers Decreases At<br> the end
Lands 11 - - - 11
Buildings 178 - - - 178
Vehicles 10 1 - - 11
Furniture<br> and fixtures, tools and software and communication equipment 54 1 1 - 56
Thermal generation<br> plants 1,288 - 5 (3) 1,290
Renewable generation<br> plants 711 - - - 711
Mining property, wells<br> and drilling equipment 2,554 - 66 - 2,620
Drilling and work in<br> progress 631 197 (72) - 756
Other goods 1 - - - 1
Total<br> at 03.31.2026 5,438 199 - (3) 5,634
Total<br> at 03.31.2025 4,390 161 - - 4,551

^(1)^ Includes US$ 3 million of borrowing costs capitalized in property, plant and equipment corresponding to the three-month period ended March 31,2026. There are no borrowing costs capitalized in the three-month period ended March 31, 2025.

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE11: (Continuation)

Depreciation Net book values
Type<br> of good At<br> the beginning For<br> the period At<br> the end At<br> the end At<br> 12.31.2025
Lands - - - 11 11
Buildings (79) (1) (80) 98 99
Vehicles (8) - (8) 3 2
Furniture<br> and fixtures, tools and software and communication equipment (39) (2) (41) 15 15
Thermal generation plants (635) (22) (657) 633 653
Renewable generation plants (113) (9) (122) 589 598
Mining property, wells and drilling equipment (1,260) (81) (1,341) 1,279 1,294
Drilling and work in progress - - - 756 631
Other goods (1) - (1) - -
Total<br> at 03.31.2026 (2,135) (115) (2,250) 3,384
Total<br> at 03.31.2025 (1,783) (83) (1,866) 2,685
Total<br> at 12.31.2025 3,303
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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE11: (Continuation)

11.2Intangible assets

Original<br> values
Type<br> of good At<br> the beginning Increases At<br> the end
Concession agreements 2 - 2
Goodwill 35 - 35
Intangible identified<br> in acquisitions of companies 71 - 71
Digital assets 1 - 1
Total<br> at 03.31.2026 109 - 109
Total<br> at 03.31.2025 111 1 112
Amortization
Type<br> of good At<br> the beginning For<br> the period At<br> the end
Concession agreements (2) - (2)
Intangible identified<br> in acquisitions of companies (18) (1) (19)
Total<br> at 03.31.2026 (20) (1) (21)
Total<br> at 03.31.2025 (16) (1) (17)
Net<br> book values
Type<br> of good At<br> the end At<br> 12.31.2025
Goodwill 35 35
Intangible identified<br> in acquisitions of companies 52 53
Digital assets 1 1
Total<br> at 03.31.2026 88
Total<br> at 03.31.2025 95
Total<br> at 12.31.2025 89
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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE11: (Continuation)

11.3Deferred tax assets and liabilities

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

03.31.2026 12.31.2025
Tax loss carryforwards 8 2
Property, plant and equipment,<br> intangible assets, right of use assets and inventories 194 95
Derivatives 65 -
Provisions and other non-deductible<br> liabilities 51 55
Other assets 3 4
Deferred tax asset 321 156
Property, plant and equipment,<br> intangible assets and inventories (46) (115)
Investments in companies (11) (10)
Financial assets at fair value<br> through profit and loss (16) (20)
Derivatives - (16)
Trade and other receivables (1) (2)
Provisions and other non-deductible<br> liabilities - (6)
Deferred<br> tax liability (74) (169)

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:

03.31.2026 12.31.2025
Deferred tax asset, net 293 43
Deferred tax liability, net (46) (56)
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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE11: (Continuation)

11.4Inventories

03.31.2026 12.31.2025
Current
Materials<br> and spare parts 163 158
Advances<br> to suppliers 12 9
In<br> process and finished products 63 64
Total<br> ^(1)^ 238 231

^(1)^ It includes impairment loss as a result of the performed recoverability assessment for US$ 0.66 million, US$ 0.37 million and US$ 0.36 million for the three-month periods ended March 31, 2026 and 2025 and for the year ended December 31, 2025.

11.5Provisions

03.31.2026 12.31.2025
Non-Current
Contingencies 26 53
Asset<br> retirement obligation and wind turbines decommisioning 29 29
Environmental<br> remediation 18 18
Total<br> Non-Current 73 100
Current
Asset<br> retirement obligation and wind turbines decommisioning 5 5
Environmental<br> remediation 4 4
Other<br> provisions 5 4
Total<br> Current 14 13
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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE11: (Continuation)

The evolution of provisions is shown below:


03.31.2026
Contingencies Asset<br> retirement obligation and decommisioning  of wind turbines Environmental<br> remediation
At the beginning of<br> the year 53 34 22
Increases 4 - -
Utilization (33) - -
Foreign currency exchange<br> difference 2 - -
At<br> the end of the period 26 34 22
03.31.2025
Contingencies Asset<br> retirement obligation and decommisioning  of wind turbines Environmental<br> remediation
At the beginning of the year 95 30 18
Increases 11 1 1
Utilization (1) (1) -
Foreign currency exchange<br> difference (1) - -
Decreases (45) - -
At the end of the period 59 30 19

Provision for lawsuits and contingencies

In the claim initiated by POSA for alleged breaches of the Assignment Agreement entered into in 2016, on March 31, 2026, the National Court of Appeals in Commercial Matters disallowed the nullity appeal filed by the Company against the Final Award.

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE11: (Continuation)

11.6Income tax and minimum notional income tax provision


03.31.2026 12.31.2025
Non-current
Income<br> tax 24 22
Minimum notional income<br> tax 2 4
Total<br> non-current 26 26
Current
Income<br> tax 197 83
Total<br> current 197 83

11.7Tax liabilities


03.31.2026 12.31.2025
Non-current
Payment plans 220 212
Total<br> non-current 220 212
Current
Value<br> added tax 8 2
Personal<br> assets tax provision 14 11
Tax<br> withholdings to be deposited 14 11
Payment plans 15 14
Royalties 16 12
Other 2 6
Total<br> current 69 56

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE12: FINANCIAL ASSETS AND LIABILITIES

12.1 Financial assets at fair value through profit and loss

03.31.2026 12.31.2025
Non-current
Shares 33 33
Total non-current 33 33
Current
Government securities 394 308
Corporate bonds 25 47
Shares 5 3
Mutual funds 17 8
Total current 441 366

12.2 Trade and other receivables

03.31.2026 12.31.2025
Non-Current
Receivables under judicial collection 22 -
Trade receivables 22 -
Advances to suppliers 44 42
Prepaid expenses - 1
Other receivables 44 43
Total non-current 66 43


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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE12: (Continuation)


Note 03.31.2026 12.31.2025
Current
Receivables 241 249
CAMMESA 166 118
Related parties 16 8 8
Impairment of financial assets (5) (20)
Trade receivables, net 410 355
Related parties 16 3 4
Tax credits 86 58
Prepaid expenses 37 18
Guarantee deposits ^(1)^ 378 142
Expenses to be recovered - 3
Receivables for sale of assets 9 9
GasAr Plan 15 16
Contractual indemnity receivable 2 2
Receivable for maintenance contract 1 1
Advances to employees 1 -
Dividends to be received 2 -
Impairment of other receivables (1) (1)
Other 4 7
Other receivables, net 537 259
Total current 947 614

(1) Includes<br> guarantee deposits on derivative financial instruments amounting for US$ 376 million and<br> US$ 141 million as of March 31, 2026, and December 31, 2025, respectively.

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.

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

Note 03.31.2026 03.31.2025
At the beginning of the year #### 20 1
Increase 4 -
Decrease (3) -
Reclasification (17) -
Foreign currency exchange difference 1 -
At the end of the period 5 1
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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE12: (Continuation)

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

Note 03.31.2026 03.31.2025
At the beginning of the year #### 1 -
Increase 1 -
Decrease (1) -
At the end of the period 1 -
12.3 Cash and cash equivalents
--- ---
03.31.2026 12.31.2025
--- --- ---
Banks 129 335
Term deposit 7 -
Mutual funds 100 390
Total 236 725
12.4 Borrowings
--- ---

03.31.2026 12.31.2025
Non-Current
Financial borrowings 45 45
Corporate bonds 1,796 1,799
Total non-current 1,841 1,844
Current
Financial borrowings 9 33
Corporate bonds 30 15
Total current 39 48
Total 1,880 1,892

As of March 31, 2026, and December 31, 2025 the fair value of the Company’s CB amount approximately to US$ 1,871 million and US$ 1,833 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 or year (fair value Level 1).

The carrying amounts of short-term borrowings 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 indebtedness´ contracts.

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE12: (Continuation)

12.4.1 Borrowings´ evolution:

The evolution of the consolidated borrowings for the three-month periods ended March 31, 2026 and 2025 is disclosed below.

03.31.2026 03.31.2025
Borrowings at the beginning of the year 1,892 2,079
Proceeds from borrowings - 45
Payment of borrowings (23) (70)
Accrued interest 32 35
Payment of interests (22) (38)
Repurchase and redemption of CB (2) (360)
Borrowing costs capitalized in property, plant and equipment 3 -
Borrowings at the end of the period 1,880 1,691

12.4.2 CB Issuance Program and frequent issuer prospectus

The latest update of the CB global program and the frequent issuer prospectus, including information as of December 31, 2025, was approved by CNV Resolutions No. RE-2026-27928092-APN-GE#CNV and No. RE-2026-27853437-APN-GE#CNV dated March 18, 2026.

12.4.3 CB

On April 1, 2026, the Company issued Class 27 CB for a nominal amount of US$ 200 million at a 5.49% fixed annual interest rate and maturing on April 1, 2029.

12.4.4 Partial Application of Proceeds – Class 26 CB

In compliance with CNV General Resolution No. 1,095/25, it is hereby reported, as a sworn statement, that as of March 31, 2026, the Company has partially applied a total of US$ 354 million of the Class 26 CB issuance, with US$ 96 million pending application.

Likewise, and in accordance with the use of proceeds disclosed in the issuance documents of the Class 26 CB, it is informed that such funds have been applied as follows: (i) placement agents’ fees and other issuance expenses; (ii) working capital contributions in Argentina; (iii) investments in property, plant and equipment in Argentina; and (iv) refinancing and redemption of the Company’s existing liabilities.

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE12: (Continuation)

12.4.5 Bank borrowings

During the three-month period ended March 31, 2026, the Company repaid bank debt totaling US$ 23 million. Post-closing, the Company took out net bank financing for US$ 26 million (borrowings totaling US$ 34 million, net of repayments for US$ 8 million).

12.5 Trade and other payables
Note 03.31.2026 12.31.2025
--- --- --- ---
Non-Current
Compensation agreements 70 70
Leases liability 10 15
Other 1 1
Other payables 81 86
Total non-current 81 86
Current
Suppliers 258 314
Customer advances 8 13
Related parties 16 44 29
Trade payables 310 356
Compensation agreements 14 14
Leases liability 21 21
Arbitral award liability 32 -
Contractual penalty debt 2 2
Various creditors 2 4
Other payables 71 41
Total current 381 397

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

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE12: (Continuation)

12.6 Fair value of financial instruments

The following table shows the Company’s financial assets and liabilities measured at fair value as of March 31, 2026 and December 31, 2025:

As of March 31, 2026 Level 1 Level 2 Level 3 Total
Assets
Financial assets at fair value through profit and loss
Government securities 394 - - 394
Corporate bonds 25 - - 25
Mutual funds 17 - - 17
Shares 7 - 31 38
Cash and cash equivalents
Mutual funds 100 - - 100
Total assets 543 - 31 574
Derivative financial instruments - 181 - 181
Total liabilities - 181 - 181
As of December 31, 2025 Level 1 Level 2 Level 3 Total
Assets
Financial assets at fair value through profit and loss
Government securities 308 - - 308
Corporate bonds 47 - - 47
Mutual funds 8 - - 8
Shares 5 - 31 36
Cash and cash equivalents
Mutual funds 390 - - 390
Derivative financial instruments - 52 - 52
Other receivables
Guarantee deposits 141 - - 141
Total assets 899 52 31 982

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<br> Financial Instruments: calculated from variations between market prices at the closing date<br> of the period, and the amount at the time of the contract.
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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE12: (Continuation)

- Shares:<br> it was mainly determined using the income-based approach through the “Indirect Cash<br> Flow” method, that is, the net present value of expected future cash flows, mainly<br> through the collection of dividends taking into consideration the equity interest in TJSM,<br> TMB thermal power plants and Oldelval.
12.7 Hedge accounting
--- ---

During 2025 and 2026, the Company entered into forward crude oil sale contracts, without physical delivery, and designated a portion of these derivative financial instruments as cash flow hedges.

The Company applies cash flow hedge accounting to certain transactions to manage the international reference price risk associated with a specific volume of forecasted crude oil sales for the May 2025-April 2027 period, thereby ensuring stable cash flows.

As of March 31, 2026, the fair value of forward crude oil sale contracts designated as hedges amounts to a US$ 186 million loss, recognized in other comprehensive income as the hedge is effective; this amount is expected to be fully reclassified to profit or loss during the April 2026-April 2027 period, as the hedged crude oil sales are recognized in earnings.

The amount reclassified from other comprehensive income to revenue, from designated hedges, generated a US$ 21 million loss during the January

  • March 2026 period.

The contracts are entered into in markets or with financial institutions with high credit ratings; therefore, the Company considers that there are no significant credit risks to its operations as a result of its derivative activities.

NOTE13: EQUITY COMPONENTS

13.1 Share Capital

As of March 31, 2026, the capital stock amounts to $ 1,364 million, including $ 4 million of treasury shares.

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 operations. 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.

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE13: (Continuation)

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, 2026 and 2025, the Company does not hold any significant potential dilutive shares, therefore there are no differences with the basic earnings per share.

03.31.2026 03.31.2025
Earning attributable to equity holders of the Company 214 153
Weighted average amount of outstanding shares 1,360 1,360
Basic and diluted earnings per share 0.16 0.11
13.3 Distribution of profits
--- ---

Dividends distributed to individuals, undivided estates or beneficiaries residing abroad, derived from profits generated during fiscal years beginning on or after January 1, 2018 are subject to a 7% withholding tax. The distribution of dividends is made based on the Company’s Stand-Alone Financial Statements which are presented in pesos, the legal currency in Argentina, pursuant to regulatory requirements.

The Company may pay and distribute dividends and any other type of profits to its shareholders, except if: (i) there is an event of breach; or (ii) the Company is not in a position to incur debt under the indentures governing the Class 21, Class 23, Additional Class 23 and Class 26 CB. As of the date of issuance of these Consolidated Condensed Interim Financial Statements, the Company has complied with all commitments set forth in the indentures governing the above-mentioned CB.

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE14: STATEMENT OF CASH FLOWS’ COMPLEMENTARY INFORMATION


14.1 Adjustments to reconcile net profit to cash flows from operating activities

Note 03.31.2026 03.31.2025
Income tax 10.5 (66) (4)
Accrued interest 32 8
Depreciations and amortizations 9 and 10.2 122 84
Share of profit from associates and joint ventures 5.1.2 (67) (46)
Results for property, plant and equipment sale and derecognition 10.3 2 -
Impairment of inventories 1 -
Impairment of financial assets 1 -
Result from present value measurement 10.4 1 1
Changes in the fair value of financial instruments (4) (27)
Exchange differences, net 7 (10)
Costs of concessions agreements completion 10.3 1 -
Provision (Recovery) for contingecies, net 10.3 4 (7)
Accrual of defined benefit plans 9 and 10.2 2 3
Earned dividends 10.3 (2) -
Other - 1
Adjustments to reconcile net profit to cash flows from operating activities 34 3

14.2 Changes in operating assets and liabilities

03.31.2026 03.31.2025
Increase in trade receivables and other receivables (472) (112)
Increase in inventories (8) (23)
Increase in trade and other payables 24 79
Decrease in salaries and social security payables (14) (13)
Defined benefit plans payments (1) (1)
(Decrease) increase in tax liabilities (7) 5
Decrease in provisions (1) (2)
Payments for derivative financial instruments, net (4) -
Changes in operating assets and liabilities (483) (67)

14.3 Significant non-cash transactions
03.31.2026 03.31.2025
--- --- ---
Acquisition of property, plant and equipment through an increase in trade payables (100) (98)
Borrowing costs capitalized in property, plant and equipment (3) -
Decrease in other receivables through an increase in financial assets at fair value through profit or loss 141 -
Decrease in provisions through an increase in other payables (32) -
Decrease in financial assets at fair value through profit and loss through an increase in trade receivables, net - (66)
Decrease in other receivables through intangible assets - (1)
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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE15: CONTINGENT LIABILITIES AND ASSETS

During the three-month period ended March 31, 2026, the following changes were identified in relation to the contingent liabilities and assets reported in the Consolidated Financial Statements as of December 31, 2025:

15.1Environmental claims

In the case brought by ASSUPA before the CSJN, mainly seeking remediation by defendants of the alleged environmental damage caused by hydrocarbon activity in the Neuquina Basin, it was decided to defer the analysis of the defenses raised by the defendants until the time of judgment, and the case is currently in the evidentiary period.

15.2Administrative claims

In the declaratory action filed by the Company before the CSJN, following the declaration that the Province of Neuquén’s concession for the Veta Escondida block had expired, the Province of Neuquén and the Company entered into a settlement agreement dated March 4, 2026, which was approved by Provincial Decree No. 2026-01344823-NEU-GPN. Pursuant to this agreement, the dispute is resolved and the parties agreed that: (i) the Province revokes the declaration of expiration of the concession; (ii) Pampa withdraws the declaratory action filed before the CSJN; and (iii) Pampa undertakes to continue with the abandonment plan in the area for the purposes of relinquishing the concession to the Province.

15.3Civil and Commercial Claims

In 2025, the Company initiated claims against ENARSA for breaches of the agreements entered into under the Gas.Ar Plan, seeking payment of certain overdue gas supply invoices in the amount of $ 53,753 million, plus interest. The claims are currently at an initial stage.

NOTE16: RELATED PARTIES´ BALANCES AND TRANSACTIONS

16.1Balances with related parties


As of March 31, 2026 Trade receivables Other receivables Trade  payables
Current Current Current
Associates and joint ventures
TGS 8 3 16
Other related parties
SACDE - - 28
8 3 44
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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE16: (Continuation)

As of December 31, 2025 Trade receivables Other receivables Trade  payables
Current Current Current
Associates and joint ventures
TGS 8 4 16
Other related parties
SACDE - - 13
8 4 29

16.2Operations with related parties


Operations for the three-month period Sales of goods and<br><br> <br>services ^(1)^ Purchases of goods and<br><br> <br>services ^(2)^
2026 2025 2026 2025
Associates and joint ventures
TGS 15 13 (28) (26)
Other related parties
SACDE - - (45) (45)
15 13 (73) (71)

^(1)^ Correspond<br> mainly to advisory services provided in relation with technical assistance and sales of gas.
^(2)^ Correspond<br> to natural gas transportation services and other services imputed to cost of sales for US$<br> 28 million and US$ 26 million and infrastructure works contracted to SACDE charged in property,<br> plant and equipment for US$ 45 million and US$ 45 million, of which US$ 10 million and $<br> US$ 13 million, correspond to fees and general expenses calculated on the costs incurred<br> by SACDE and/or Pampa to carry the works out for the three-month periods ended March 31,<br> 2026 and 2025, respectively.
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NOTE 17: INVESTMENT COMMITMENTS

Developmentand evacuation projects in Vaca Muerta

Rincónde Aranda Development – RDA Project

Within the framework of the expansion of projects eligible under the RIGI established by PEN Executive Order No. 105/26 (see Note 2.5.2.2), on March 9, 2026, the Company, through its SVP Pampa Energía S.A. – Sucursal Dedicada Proyecto RDA, submitted an application to adhere to the RIGI as a long-term strategic export project related to the development of new shale oil wells and the construction of associated infrastructure in the Rincón de Aranda block (“RDA Project”).

The total estimated investment for the RDA Project amounts to approximately US$ 4,500 million.

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE 18: INCIDENT AT HINISA

During the period ended March 31, 2026, HINISA recorded U$$ 0.5 million losses corresponding to costs related to the incident arising from the weather event of January 11, 2025, which forced the Nihuil II and III power plants out of service.

In addition, HINISA continued the proceedings with the adjusters appointed by the insurance companies and, as of March 31, 2026, has received advance payments of US$ 1.7 million, recognized under the insurance recovery line item, as reimbursement for the cleaning and remediation expenses necessary to determine the final damages and costs, as well as the loss of profit coverage.

As of the date of issuance of these Consolidated Condensed Interim Financial Statements, the final cost of the incident and the amount of the insurance proceeds have not yet been assessed by HINISA.

NOTE 19: TERMINATION OF HYDROELECTRIC CONCESSIONS

On April 15, 2026, the Province of Mendoza sent a note to HINISA, noting that the company has acted diligently in restoring the power plants following the incident caused by the weather event of January 11, 2025, and that, given that it is progressing with the preparation of the tender documents, it requires providing greater certainty to potential tenderers regarding the receivables arising from the incident-related insurance coverage. For such purpose, it requested HINISA to evaluate alternatives to allow the assignment of such receivables to Hidroelectricidad Mendocina S.A. (future holder of the assets pursuant to Law No. 9,486 of the Province of Mendoza).

On April 22, 2026, HINISA’s Board of Directors approved the execution of the assignment agreement of HINISA’s contractual position under its insurance policies with respect to consequential damages, excluding the amounts required to cover the works performed and currently under execution by HINISA.

NOTE20: DOCUMENTATION SAFEKEEPING ****

In compliance with CNV General Resolution No. 629/14, the Company, infoms having sent non-sensitive work papers and information corresponding to the periods not covered by the statute of limitations for their keeping in the Administración de Archivos S.A. (AdeA)’s data warehouse located at Ruta 36, km 34.5, Florencio Varela, 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.

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| --- | | NOTES TO THE UNAUDITED CONSOLIDATED CONDENSED INTERIM<br><br>FINANCIAL STATEMENTS (Continuation)<br><br>For the three-month period ended March 31, 2026, presented on comparative basis.<br><br>(In millions of US$ – unless otherwise stated) |

NOTE 21: SUBSEQUENT EVENTS

21.1Ordinary and Extraordinary General Shareholders’ Meeting

On April 7, 2026, the Company’s General Ordinary and Extraordinary Shareholders’ Meeting resolved, among other matters:

- to approve the allocation of results for the year ended December 31, 2025, with reported profits for $ 495,789 million, which, plus appropriated translation differences of $ 15,742 million, resulted in total retained earnings of $ 511,531 million, to be allocated to the voluntary reserve;

- to reduce share capital by $ 19,920,279, with the corresponding cancellation of treasury shares held by the Company and its subsidiaries as of the business day prior to the Shareholders’ Meeting date, totaling 19,920,279 shares; and

- to extend the term of the CB issuance program for an additional five-year period as from December 9, 2026, the Program’s original maturity date.

21.2UREA Project

On April 21, 2026, the Company, through its subsidiary FEPASAU, submitted an application for admission to the RIGI for the construction, operation and management of a 6,000-tn/d of granulated urea production complex in Bahía Blanca, where ammonia and other fertilizers will also be produced (the “UREA Project”). The UREA Project will be supplied with gas from Vaca Muerta and aims to produce 2.1 million tn/y of urea as from 2030, with a total estimated investment of approximately US$ 2,400 million.

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