Board Changes.

Board Changes

New Independent Non-Executive Director

Antofagasta plc (the "Company") announces that the Board of Directors (the "Board") of the Company has appointed Carlos Avila as an independent Non-Executive Director with effect from 14 October 2026.

Mr. Avila has over 30 years of mining leadership experience across operations, planning, strategy and governance. He spent 19 years with BHP, most recently serving as Asset President for Non-Operating Joint-Ventures (NOJV) Minerals Americas, where he led BHP’s portfolio of NOJV assets in Peru, Colombia, the United States and Brazil; and Vice President of Planning and Technical for BHP Minerals America based in Santiago, Chile. He also served as Vice President of Mining Projects at BHP, based in Melbourne, Australia and as Vice President of Mining and Vice President of Planning at Minera Escondida. Prior to joining BHP, Mr. Avila spent more than 13 years with Codelco in mine planning, operations and development roles.

Mr Avila has previously served on the boards of the BHP Foundation, Compañía Minera Antamina and Samarco Mineração S.A., as well as on the Management Committee of Resolution.

Mr. Avila graduated with a Bachelor of Mining Engineering degree from the University of Chile and attained a Master of Science degree from the Colorado School of Mines. He also holds Diplomas in Project Management from Colorado State University, and Management and Leadership from the University of Oxford.

Mr. Jean-Paul Luksic, Chairman of the Company said: “Following a comprehensive, externally facilitated search process, we are very pleased that Carlos has accepted our invitation to join the Board. His comprehensive mining expertise will be of great benefit to the Company over the coming years.”

For the purposes of the UK Corporate Governance Code, Mr Avila is considered by the Board to be independent. Save as disclosed above, there are no further disclosures required under Listing Rule 6.4.8 R in respect of Mr Avila.

Change of Senior Independent Director and Board Committee Membership Changes

In accordance with Listing Rule 6.4.6R, the Company also announces that Heather Lawrence, a Non-Executive Director of the Company since 2023, has been appointed Senior Independent Director and a member of the Nomination and Governance Committee with effect from 1 November 2026. 

Ms. Lawrence is currently a member of the Audit and Risk Committee and the Remuneration and Talent Management Committee.

Ms. Lawrence succeeds Francisca Castro as Senior Independent Director. Ms. Castro will also rotate off the Nomination and Governance Committee with effect from 1 November 2026. Ms. Castro has served as the Senior Independent Director since 8 August 2023 and will continue to serve as a Director of the Company.

From 1 November 2026, composition of the Committees shall be as follows:

• Nomination and Governance Committee: Jean-Paul Luksic (Chair), Heather Lawrence and Tony Jensen;
• Audit and Risk Committee: Tony Jensen (Chair), Heather Lawrence, Tracey Kerr and Ignacio Bustamante;      
• Remuneration and Talent Management Committee: Ignacio Bustamante (Chair), Michael Anglin, Eugenia Parot and Heather Lawrence;
• Projects Committee: Michael Anglin (Chair), Ramón Jara, Eugenia Parot, Tony Jensen and Andrónico Luksic L.; and
• Sustainability and Stakeholder Management Committee: Eugenia Parot (Chair), Ramón Jara, Michael Anglin, Tracey Kerr and Andrónico Luksic L.

Investors – London      Media – London

Juan Esteban Dides  [email protected]  Sara Powell [email protected]

Robert Simmons  [email protected] Ben Brewerton 

Telephone  +44 20 7808 0988   Nick Hennis 

       Telephone +44 20 7404 5959

       Media – Santiago

       Pablo Orozco [email protected]

       Carolina Pica [email protected]

Telephone +56 2 2798 7000

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