COVID-19 Response and Copper's Role

| PT-FI Controlled Riverine Tailings Alternative with lowest risk to human health and the environment FREEPORT FOREMOST IN COPPER • • • PT-FI's controlled system selected after extensive evaluations by international experts given extreme terrain and site- specific conditions A conventional tailings management system would have created an unacceptably high risk to human health and the environment 20+ year history of performing as designed Extensive monitoring and testing - 60 active monitoring programs currently Monitoring programs have established natural revegetation occurs and that the impacts are reversible at the end of the mine life PT-FI spends $100 million annually to monitor and manage the controlled system 20 20

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