Antofagasta Investor Day

SUCCESSFUL MINERAL RESOURCE DEVELOPMENT RESOURCE GROWTH (CONTAINED COPPER) (CAGR 2003 - 2020) 15.5% 9.5% 8.9% Peer 1 Antofagasta Peer 2 5.3% Peer 3 0.7% Peer 4 2nd highest resource growth since 2003 . Successful resource development, mainly through exploration • Cost efficient copper growth Source: S&P Global Market Intelligence, Measured and 31 Indicated Resources

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