INTERIM DIVIDEND PAYABLE

NEWS RELEASE, 16 SEPTEMBER 2016

INTERIM DIVIDEND PAYABLE

DIVIDEND NO. 42 - AMOUNT PAYABLE IN STERLING AND EURO

Further to the half yearly results announcement on 16 August 2016, the Sterling equivalent of the interim dividend of 3.1 US cents will be 2.3494 pence per ordinary share, based on an exchange rate of £1 = US$1.3195, and the Euro equivalent will be 2.7568 Euro cents per ordinary share, based on an exchange rate of €1 = US$1.1245.

Payment of the dividend is scheduled for 30 September 2016.

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

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