i-80 Gold updates Lone Tree Plant refurbishment: $430M capex, 12-24 month payback, commissioning Q4 2027

i-80 Gold Corp.

Capital cost estimate $430M ($412M plus $18M spares); AACE Class 3; slightly above ~$400M due to inflation and expanded tailings filtration.
Expected payback 12-24 months depending on grade and gold price; owner-operator processing reduces costs to ~1/3 of toll-milling.
Margin increase estimated at $1,000-$1,500/oz; commissioning targeted for Q4 2027; construction decision after recapitalization.
Permit applications due Q1 2026; demolition Q2 2026; construction H2 2026; recapitalization expected by end of Q2 2026.
Plant to serve as central hub for Granite Creek, Archimedes, and Cove mines; nameplate 2,268 tpd / 827,806 tpa.

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