6-K

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,2025

(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: Letter dated May 2, 2025 entitled “Participation of the Company in the FLNG Project.”

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 2, 2025

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.

City of Buenos Aires, May 2^nd^, 2025

COMISIÓN NACIONAL DE VALORES

BOLSAS Y MERCADOS ARGENTINOS S.A.

Ref.: Participation ofthe Company in the FLNG Project.

Dear Sirs,

I am writing to you in my capacity as Head of Market Relations of Pampa Energía S.A. (“Pampa” or the “Company”) in connection with the Relevant Event published by the Company on November 29, 2024, in order to inform that all conditions precedent have been met in order to move forward with the FLNG Project.

Among such conditions were, among others: (i) the final investment decision regarding the vessel “Hilli Episeyo” (“Hilli”), (ii) the submission of the request for adhesion to the Incentive Regime for Large Investments (RIGI) by the Ministry of Economy of the Nation; and (iii) obtaining the certificate of Authorization of Free Export of Liquefied Natural Gas for a term of 30 years granted by the Secretariat of Energy of the Nation.

In addition to the vessel Hilli, a second vessel “MKII” was incorporated to the project. Both will have a processing and export capacity of approximately 6 million tons per year of LNG, equivalent to 27 million cubic meters per day of natural gas, which will position Argentina in the world market of liquefied natural gas (LNG) and represents an investment of close to USD 7,000 million throughout the 20 years of operation in the entire value chain.

Production of the Hilli is expected to start in late 2027 or early 2028 and MKII operations are expected to start in late 2028.

The consortium is formed by Pampa (20%), Pan American Energy S.L. (“PAE”) (30%), YPF S.A., through its subsidiary Sur Inversiones Energéticas S.A.U. (“SUR”) (25%), Wintershall DEA Argentina S.A. (“Wintershall”) (15%) and Golar FLNG Sub-Holding Company Limited (“Golar Subholding”) (10%), being all of them shareholders of Southern Energy S.A. (“SESA”).

In order to supply natural gas to the vessels, SESA entered into natural gas supply agreements with Pampa, PAE, SUR and Wintershall (the “GSAs”) for a term of 20 years. In this regard, in order for both vessels to operate all year round, SESA contemplates the construction of a dedicated pipeline between the province of Neuquén to San Matías Gulf in the province of Río Negro.

Sincerely,

________________________________

María Agustina Montes

Head of Market Relations