Antofagasta Investor Conference Presentation Deck

Exploration Cachorro maiden resource declared 4.0 Smurtape Puerto Mejillones 80°00″W 70°00″W Antofagasta Antucoya 70°0′0″W Cachorro 6:950'0″W Centinela Zaldivar 69′00″W álama 40 Km 24'00"S Drilling Camp Mineralisation Antofagasta plc | 2022 BMO Global Metals & Mining Conference ● ● ● ● Inferred resource 142 mt @1.21% Cu Latest Group discovery generated by our greenfield exploration programme Potential to become one of the most important manto-type deposits in the coastal metallogenic belt of northern Chile Potential mineralisation of 300 million tonnes Good local infrastructure Infill drilling will continue during 2022 15

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