Antofagasta Results Presentation Deck

2021 HY production cost breakdown 1.86 Others 7% THO Other inputs 10% $1,481m 4% Sulphuric acid 6% Fuel and Lubricants Materials and spare parts 1.14 0.59 Net Cash By-products Cost HY credits 2021 1.73 Gross Cash Cost HY 2021 (0.20) 0.33 TC/RC & Mine Production Comm. development, Cost HY 2021 Inventory variation & IFRS 16 Energy 13% 15% Labour 14% ANTOFAGASTA PLC 13% 17% Services Maintenance services 32

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