On March 13, 2024, Antofagasta plc announced that it has proposed to Compañía de Minas Buenaventura S.A.A.?s Board that the Board nominate Antofagasta?s Chief Executive Officer, Iván Arriagada Herrera, and Antofagasta?s Vice President of Development, Andrónico Luksic Lederer, for election as directors of the Company to fill the Board vacancies created by the approval of the Board Size Amendment. Antofagasta stated that the Company would nominate such Antofagasta nominees for election to the Board at its upcoming annual general shareholders? meeting on March 27, 2024, and has included such Antofagasta nominees in the agenda for such annual general shareholders?

meeting.