Prio – Capital Increase Through Reserve Capitalization

PRIO S.A. (“PRIO” or “Company”) (B3: PRIO3), in compliance with CVM Resolution 44/2021, hereby informs its shareholders and the market in general that, at a meeting of the Company’s Board of Directors held on February 25, 2025, an increase in the Company’s share capital in the amount of R$ 2,800,000,000.00, was approved, rising from R$ 10,933,747,427.39 to R$ 13,733,747,427.39, through the capitalization of fund allocated to the statutory profit reserve called “Investment Reserve” (“Capital Increase”).

The purpose of the capital increase is to enable the financing of development projects of the Wahoo Field, including the drilling of four production wells and two injection wells, as well as the installation of a 30-kilometer tieback connecting the field to the FPSO Valente in the Frade Field; this capital increase will also support the financing of drilling and subsurface connection activities in producing assets. In addition, this capital increase aims to strengthen the Company’s capital structure, strengthening its cash and cash equivalents position, in view of the obligations assumed in connection with the recent acquisition of a stake in exploration blocks BM-C-7 and BM-C-47, as well as to enable the financing of future growth opportunities, including inorganic projects and initiatives aimed at generating value for shareholders in strict compliance with the purpose of this reserve (as set out in article 40, second paragraph, item “f)” of the Company’s Bylaws).

The Capital Increase will be carried out without distributing new shares among the shareholders or changing the number of shares issued by the Company.

This is an accounting operation in which part of the amounts allocated to the statutory profit reserve called “Investment Reserve” is added to the share capital, thus increasing its monetary expression. As such, there is no inflow of new funds to the Company through this operation. Given that the Capital Increase is a mere reallocation of amounts already existing in the Company’s shareholders’ equity, this operation does not have any financial or economic consequences.

Finally, the Company clarifies that further details and complementary information about the Capital Increase can be found in the Notice to Shareholders published by the Company on this date, as well as in the minutes of the meeting of the Board of Directors that approved the Capital Increase, both of which are available for consultation on the Company’s websites (ri.prio3.com.br) and those of the Securities and Exchange Commission (www.gov.br/cvm).