Prio Operational data May 2025

PRIO S.A. (“Company” or “PRIO”) (B3: PRIO3), following best practices incorporate governance and transparency, informs its preliminary and non-audited Operational Data for the month of May.

Key:

(1) Following the scheduled shutdown, the resumption of Frade’s operations was impacted by a failure in the gas compression system, which is expected to be resolved in the coming days. (2) In the Polvo and Tubarão Martelo cluster, production was affected by the shutdown of the wells TBMT-10H and TBMT-4H due to the failure of the Submerged Centrifugal Pump. On April 24, IBAMA granted approval for the workovers, and The Hunter Queen rig has already begun the workover of well TBMT-10H.