Antofagasta plc announced that with effect from 1 September 2025, Ignacio Bustamante, an Independent Non-Executive Director since 1 July 2025, will join both the Audit and Risk Committee and the Remuneration and Talent Management Committee. In addition, Francisca Castro, an Independent Non-Executive Director since November 2016, will rotate off the Audit and Risk Committee. From 1 September 2025, composition of the Committees shall be as follows: Nomination and Governance Committee: Jean-Paul Luksic (Chair), Francisca Castro and Tony Jensen; Audit and Risk Committee: Tony Jensen (Chair), Heather Lawrence, Tracey Kerr and Ignacio Bustamante; Remuneration and Talent Management Committee: Francisca Castro (Chair), Michael Anglin, Eugenia Parot, Heather Lawrence and Ignacio Bustamante; Projects Committee: Michael Anglin (Chair), Ramón Jara, Eugenia Parot and Tony Jensen; and Sustainability and Stakeholder Management Committee: Eugenia Parot (Chair), Ramón Jara, Juan Claro, Michael Anglin and Tracey Kerr.