APPOINTMENT TO BOARD COMMITTEE

Appointment TO BOARD COMMITTEE

In accordance with UK Listing Rule 6.4.6, Antofagasta plc ("Antofagasta" or the "Company") announces that Tracey Kerr, an Independent Non-Executive Director since January 2024, will join the Audit and Risk Committee with effect from 1 September 2024.

Investors - London Media - London

Rosario Orchard rorchard@antofagasta.co.uk Carole Cable antofagasta@brunswickgroup.com

Robert Simmons rsimmons@antofagasta.co.uk Telephone +44 20 7404 5959

Telephone +44 20 7808 0988

Media - Santiago

Pablo Orozco porozco@aminerals.cl

Carolina Pica cpica@aminerals.cl

Telephone +56 2 2798 7000

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