Minnesota Commitment | Global Opportunity

Investor Presentation Minnesota Commitment Global Opportunity Responsible Mining POLYMET MINING ENVIRONMENTAL STEWARDSHIP Design safeguards water, air and other natural resources Repurposes idled plant and addresses legacy water quality Among highest EPA rating of EIS of any mine in U.S. COMMUNITY COMMITTMENT Vested partner in Iron Range communities Aligned company and community values Strong support across business, labor and community spectrum 11

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