Interim Dividend Payable

NEWS RELEASE, 14 SEPTEMBER 2017

INTERIM DIVIDEND PAYABLE

DIVIDEND NO. 44 - AMOUNT PAYABLE IN STERLING AND EURO

Further to the half yearly results announcement on 22 August 2017, the Sterling equivalent of the interim dividend of 10.3 US cents will be 7.7812 pence per ordinary share, based on an exchange rate of £1 = US$1.3237, and the Euro equivalent will be 8.6395 Euro cents per ordinary share, based on an exchange rate of €1 = US$1.1922.

Payment of the dividend is scheduled for 6 October 2017.

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Investors - London Media (Brunswick)

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

Paresh Bhanderi pbhanderi@antofagasta.co.uk Will Medvei antofagasta@brunswickgroup.com

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

Investors - Santiago Media - Santiago

Francisco Veloso fveloso@aminerals.cl Pablo Orozco porozco@aminerals.cl

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

Telephone +56 2 2798 7000

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