First Mining Intersects 7.18 g/t Au over 8 m at the Miroir Target and Provides Duparquet Project Update

DUP25-085 returns 3.74 g/t Au over 15.5 m and 7.18 g/t over 8.0 m, including 30.58 g/t over 1.65 m DUP25-081 returns 1.56 g/t Au over 33.15 m, including 3.18 g/t Au over 7.6 m DUP25-090 returns 4.08 g/t Au over 12.0 m, including 11.20 g/t Au over 1.0 m, extending mineralization to vertical depth of 250 m VANCOUVER, BC, March 9, 2026 /PRNewswire/ - First Mining Gold Corp. ("First Mining" or the "Company") (TSX: FF) (OTCQX: FFMGF) (FRANKFURT: FMG) is pleased to announce additional results from the 2025 exploration drilling program at its Duparquet Gold Project ("Duparquet Project" or the "Project") located in the Abitibi region of Quebec, Canada. The Company completed its 2025 drilling program at the Project in October, totaling 16,577 m of drilling.