Antofagasta Results Presentation Deck

Centinela's Esperanza Sur pit 10-15,000 tonnes of additional copper Will improve Centinela's flexibility to supply its concentrator Over the initial years, the higher grade material from the pit will increase copper production by 10-15,000tpa Once pre-stripping is completed, autonomous trucks operated by Centinela will mine the deposit 1.4 billion tonnes of reserves with a grade of 0.4% copper, 0.13 g/t of gold and 0.012% of molybdenum Project completion planned for H1 2022 $175 million capital cost unchanged ● ● ● ● ● Pinkies ty Thingine Ausy ANTOFAGASTA PLC 21

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