TORONTO, May 15, 2023 — Alamos Gold Inc. (TSX:AGI; NYSE:AGI) (“Alamos” or the “Company”) today reported new
results from ongoing surface exploration drilling within the Mulatos District. This included further extending high-grade gold mineralization outside of Mineral Reserves and Resources at Puerto Del Aire (“PDA”), a higher-grade underground deposit adjacent to the Mulatos pit. Additionally, gold mineralization was intersected over a wide interval at the Capulin target, located two-kilometres east of the former San Carlos open pit.