Petro Rio S.A. (BOVESPA:PRIO3) signed a memorandum of understanding to acquire Dommo Energia S.A. (BOVESPA:DMMO3) from Prisma Capital Ltda approximately BRL 820 million on September 1, 2022. Under the agreement existing Dommo Energia shareholders will be able to trade each share for 0.05 of an ordinary share in Petro, or can sell shares at a price of BRL 1.85. Under the agreement, existing Dommo Energia shareholders will get 0.0375 of an ordinary share in Petro and a cash price of BRL 0.4625. As of per the revised terms, the shareholders of Dommo have given two options, to receive (a) 0.0375 of Petro ordinary share, to be delivered upon redemption; and BRL 0.4625, to be paid in Brazilian currency or (b) BRL 1.85 in Brazilian currency in up to 90 days as of January 9, 2023. The payment will be made within 90 days of the conclusion of the operation. Petro has exclusive negotiation rights for the operation for a period of six months. The acquisition is subject to approval from antitrust body CADE, Dommo's shareholders and other regulatory conditions. As of October 25, 2023, the shareholders of Dommo and Petro approved the transaction.

Rodrigo Vianna, Elisabeth Stichmann, Marc Lager, Andreas Bischofreiter, Elisabeth Stichmann, Dimitar Hristov, Richard Fens, Gabriël Unval, Gabriël Alting Siberg, Jean Paul Dresen, Robin Theuns, Cesar Salagaray Scarpa, Alejandro Rodrigues Vila, Luis Muñoz, Melody Brunot and Luis Muñoz of DLA Piper acted as legal advisors to Petro Rio. Alexandre Gossn Barreto, Fernanda Cirne Montorfano Gibson, and Eduardo Simoes Lanna of Cescon, Barrieu, Flesch & Barreto Advogados acted as legal advisors to Petro. Trindade Advogados acted as legal advisor to Dommo.

Petro Rio S.A. (BOVESPA:PRIO3) completed the acquisition of Dommo Energia S.A. (BOVESPA:DMMO3) from Prisma Capital Ltda million on January 9, 2023. As a result, Dommo hereby informs its shareholders and the market in general that a request for voluntary cancellation of its registration as a publicly-held company in the category "A", pursuant to CVM Resolution no. 80, of March 29, 2022, as amended, filed with the Brazilian Securities and Exchange Commission (CVM) on January 16, 2023, was granted and as a result Dommo will become a privately-held company, and its shares will no longer be listed for trading on the B3 S.A. - Brasil, Bolsa, Balcão or any other organized market.