Antofagasta Board Committee Changes

NEWS RELEASE, 18 AUGUST 2015

CHANGE TO SUSTAINABILITY AND STAKEHOLDER MANAGEMENT COMMITTEE

Antofagasta plc announces that Tim Baker joined the Sustainability and Stakeholder Management Committee with effect from today.

Investors - London Public Relations Advisors - London

Andrew Lindsay alindsay@antofagasta.co.uk Carole Cable antofagasta@brunswickgroup.com

Paresh Bhanderi pbhanderi@antofagasta.co.uk Robin Wrench antofagasta@brunswickgroup.com

Telephone +44 20 7808 0988 Telephone +44 20 7404 5959

Investors - Santiago Media - Santiago

Alfredo Atucha aatucha@aminerals.cl Pablo Orozco porozco@aminerals.cl

Telephone +56 2 2798 7000 Carolina Pica cpica@aminerals.cl

Telephone +56 2 2798 7000