We advised Pluspetrol in the international issuance of Notes for US$200,000,000

Pluspetrol S.A. (the “Company”) conducted a local and international offering (the “Offering”) of additional Class 4 notes due 2032 (the “Notes”) for an aggregate principal amount of US$200,000,000 (two hundred million United States dollars).

The Notes are fungible with the Class 4 notes originally issued by the Company on May 30, 2025, for an aggregate principal amount of US$450,000,000 (the “Existing Notes”, and together with the Notes, the “Class 4 Notes”). As a result, the total principal amount of the Class 4 Notes amounts to US$650,000,000.

The Notes will accrue interest at an annual fixed nominal rate of 8.500% per annum. Interest will be payable semi-annually in arrears on May 30 and November 30 of each year, beginning on November 30, 2025. The principal amount of the Notes will be amortized in a single installment on the maturity date, May 30, 2032.

The Offering was carried out in accordance with Rule 144A and Regulation S under the U.S. Securities Act of 1933 and also included a public offering of the Notes in Argentina.

BofA Securities, Inc., Citigroup Global Markets Inc., J.P. Morgan Securities LLC, and Santander US Capital Markets LLC acted as initial purchasers of the Offering outside Argentina. Balanz Capital Valores S.A.U., Banco de Galicia y Buenos Aires S.A., Banco Santander Argentina S.A., and Cucchiara y Cía. S.A. acted as local placement agents for the Offering in Argentina.

The Notes have been admitted for listing on Bolsas y Mercados Argentinos S.A. and authorized for trading on A3 Mercados S.A.

The Offering closed on June 30, 2025.

Legal counsel to Pluspetrol S.A.

Cleary Gottlieb Steen & Hamilton LLP (New York, United States)
Partners Juan Giráldez and Jonathan Mendes de Oliveira, associate Nicole Muller, and international associate Micaela Mingramm.

Bruchou & Funes de Rioja
Banking & Capital Markets Department: Partners José Bazán and Leandro Belusci, and associates Branko Serventich and Sofía Maselli.

Legal counsel to the Initial Purchasers and Local Placement Agents

Milbank LLP (New York, United States)
Partner Marcelo Mottesi, special counsel Gonzalo Guitart, and associate Pamela Molina.

Martínez de Hoz & Rueda
Partners José Martínez de Hoz (h), Pablo Schreiber, and Jimena Vega Olmos, and associates Luisina Luchini and Marco Primo.