Antofagasta Results Presentation Deck

I I ■ ■ Investment case Responsible copper producer High quality assets Strong and growing production Sustainability Zero fatalities culture Safety and health model Environment stewardship Community relations and shared development Culture and labour relations Robust governance ■ ■ I Large resource base Low cost and long-life assets Four mines in two "world- class" districts in Chile S24 222 ■ Constant focus on unit costs Continuous productivity improvement ■ Operating efficiency ■ Cost and Competitiveness Programme Innovation for long term gains GASTA MINERALS OLIBDENO ■ ■ ANTOFAGASTA PLC Financial position Strong balance sheet Healthy cash flows Disciplined capital allocation and shareholder returns 25

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