Electrifying the Future slide image

Electrifying the Future

Lone Star Update Oxides 2P Reserves: 4.9 billion lbs ELECTRIFYING THE FUTURE 96 75 Stacking rate (k t/d) Original Design 2021 120 (1) FREEPORT FOREMOST IN COPPER Low capital intensity investment in additional mining and processing equipment Sulfides Mineral Potential: ~50 billion lbs (3) ⚫ Success of oxide development advances opportunity for scale Design to incorporate combined leach and concentrate facilities - similar to Morenci Next steps • Ongoing exploration to support metallurgical testing o Scoping studies/mine planning scenarios. Incremental 2020 start-up Expansion ~200 mm ~250 mm lbs/annum (2) ~300 mm (1) Initially at 105k t/d with ramp-up to 120k t/d by 2024e. (2) Excludes historic Safford leach material which currently approximates 25 mm lbs/annum. (3) Estimated mineral potential includes exploration targets and mineral resources but will not qualify as mineral reserves until comprehensive engineering studies establish legal and economic feasibility. Significant additional evaluation is required and no assurance can be given that the potential quantities of metal will be produced. Accordingly, no assurance can be given that estimated mineral potential not included in mineral reserves will become proven and probable mineral reserves. e = estimate See Cautionary Statement. 29 29
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