Alamos Gold Extends Higher-Grade Mineralization within Multiple Hanging Wall Zones Near Existing Infrastructure at Young-Davidson

Core Viewpoint - Alamos Gold Inc. has reported significant advancements in its underground exploration program at the Young-Davidson mine, highlighting the extension of high-grade gold mineralization in multiple zones, particularly in the hanging wall and syenite areas, which presents substantial upside potential for the company. Exploration Results - New high-grade gold mineralization has been identified in the South Syenite Zone, located 285 meters south of the Northgate Shaft, an area with limited historical drilling [2] - The Mid-Mine Hanging Wall Zones have shown extended high-grade gold mineralization, discovered in 2024, near existing infrastructure and south of current Mineral Reserves and Resources [2][12] - Expansion drilling in the Young-Davidson syenite continues to extend gold mineralization beyond existing Mineral Reserves and Resources, with notable intercepts including: - 16.36 g/t Au over 17.90 m, including 116.50 g/t Au over 1.00 m [3][11] - 9.15 g/t Au over 22.00 m, including 44.03 g/t Au over 3.00 m [3][15] - 10.12 g/t Au over 17.30 m, including 143.50 g/t Au over 1.00 m [3][16] Financial and Operational Highlights - The exploration spending at Young-Davidson totaled $13.1 million in 2025, with 34,080 meters of drilling across 81 holes, and 448 meters of underground exploration development completed [7][8] - The company has maintained a Mineral Reserve life of at least 13 years since 2011, indicating strong potential for continued resource availability [17] Future Plans - Drilling will continue in 2026 to further expand high-grade mineralization, particularly where it remains open to the east and up/down dip [10] - The focus will remain on extending mineralization within the Young-Davidson syenite and testing higher-grade gold mineralization in the hanging wall [8][9]