Antofagasta Investor Day Presentation Deck

2020 PRODUCTION AND COSTS 733,900 tonnes of copper down by 4.7% from our record level in 2019, mainly due to planned lower ore grades at Centinela Net cash costs $1.14/lb 6.6% lower than in 2019 6.4 million tonnes Tonnage transported 709 1.20 2016 Copper production and net cash costs 704 1.25 2017 725 1.29 770 ANTOFAGASTA PLC 1.22 734 Copper production (kt) Net cash costs ($/lb) 1.14 2018 2019 2020

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