Antofagasta Investor Day

WE ARE A RELIABLE PRODUCER Over the last five years, we have consistently met or exceeded our guidance Copper production guidance ktonnes 800 750 700 650 2017 2018 - Guide - min 2019 2020 Guide - max 2021 - Actual c/lb 1,40 1,35 1,30 1,25 1,20 1,15 1,10 2017 Net cash cost guidance 2018 2019 Guide 2020 Actual 2 2021 1- Min and max are original guidance. Actual shown as midpoint of revised guidance 2- Actual YTD September 2021 Source: internal 9

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