Alamos Gold Announces Island Gold District Expansion to 20,000 TPD, Creating One of Canada's Largest and Lowest Cost Gold Mines with Attractive Economics, including 69% After-Tax IRR and $12.2 Billion NPV at $4,500/oz Gold

All amounts are in United States dollars, unless otherwise stated TORONTO, Feb. 03, 2026 (GLOBE NEWSWIRE) -- Alamos Gold Inc. (TSX:AGI; NYSE:AGI) (“Alamos” or the “Company”) today reported results of the Expansion Study (“IGD Expansion”) completed on the Island Gold District operation, located in Ontario, Canada. Compared to the Base Case Life of Mine Plan (“Base Case LOM”) released in June 2025, the IGD Expansion incorporates a 30% increase in Mineral Reserves, and an expansion of the Magino mill to 20,000 ...