On February 26, 2024, Antofagasta plc announced that Compañía de Minas Buenaventura S.A.A. agreed to call a general shareholders? meeting on February 22, 2024, for shareholders of the Company to vote on the Board Size Amendment. The general shareholders meeting was held on February 22, 2024, and the Company disclosed publicly through a Hecho de Importancia filed with the Superintendencia del Mercado de Valores in Peru on February 22, 2024, that the Board Size Amendment was approved at the meeting.

Antofagasta plc stated that the approval of the Board Size Amendment has created 2 new vacancies on the Board. Antofagasta plc also stated that it plans to propose 2 individuals to the Board to be nominated by the Board for election as directors of the Company to fill the Board vacancies created by the approval of the Board Size Amendment.