Antofagasta Results Presentation Deck

Capital expenditure 1 Capital expenditure¹ $ million Sustaining ratio $400-450/tCu (5 year moving average target) $899m 276 32 221 371 2017 2017 $338/tCu $873m 144 68 310 352 2018 2018 $457/tCu $1,079m 279 61 392 347 2019 2019 $550/tCu $1,307m 571 37 341 357 2020 2020 $497/tCu Figures are based on cash flow and exclude Zaldívar. Attributable Zaldívar capital expenditure was $51m in 2017, $52m in 2018, $45m in 2019 and $74 in 2020 Guidance $1.6bn 890 70 265 375 2021E 2021E $380/tCu Growth ANTOFAGASTA PLC Transport & corporate Mining sustaining Mine development 2017-2021E $444/tCu 17

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