Antofagasta Results Presentation Deck

Sustainability ● ● ● Investment case Responsible copper producer ● Zero fatalities culture Safety and health model Environment stewardship Community relations and shared development Culture and labour relations Robust governance High quality assets Strong and growing production ● ● Large resource base Low cost and long-life assets Four mines in two "world- class" districts in Chile DONE GASTA MINERALS OLIBDENO BUR 000056 Operating efficiency • Constant focus on unit costs Continuous productivity improvement • Cost and Competitiveness Programme Innovation for long term gains ● - ● ANTOFAGASTA PLC Financial position • Strong balance sheet Healthy cash flows Disciplined capital allocation and shareholder returns ● 27

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