X0708 D LIVE 0001641229 First Mining Gold Corp. SUITE 2070 - 1188 WEST GEORGIA ST. VANCOUVER A1 BRITISH COLUMBIA, CANADA V6E 4A2 844306-8827 BRITISH COLUMBIA, CANADA None First Mining Finance Corp. Corporation true Dan Wilton Suite 2070, 1188 West Georgia Street Vancouver A1 BRITISH COLUMBIA, CANADA V6E 4A2 Director Executive Officer Lisa Peterson Suite 2070, 1188 West Georgia Street Vancouver A1 BRITISH COLUMBIA, CANADA V6E 4A2 Executive Officer Steve Lines Suite 2070, 1188 West Georgia Street Vancouver A1 BRITISH COLUMBIA, CANADA V6E 4A2 Executive Officer James Maxwell Suite 2070, 1188 West Georgia Street Vancouver A1 BRITISH COLUMBIA, CANADA V6E 4A2 Executive Officer Richard Huang Suite 2070, 1188 West Georgia Street Vancouver A1 BRITISH COLUMBIA, CANADA V6E 4A2 Executive Officer Keith Neumeyer Suite 2070, 1188 West Georgia Street Vancouver A1 BRITISH COLUMBIA, CANADA V6E 4A2 Director Raymond Polman Suite 2070, 1188 West Georgia Street Vancouver A1 BRITISH COLUMBIA, CANADA V6E 4A2 Director Richard Lock Suite 2070, 1188 West Georgia Street Vancouver A1 BRITISH COLUMBIA, CANADA V6E 4A2 Director Leanne Hall Suite 2070, 1188 West Georgia Street Vancouver A1 BRITISH COLUMBIA, CANADA V6E 4A2 Director Other Decline to Disclose 06b false 2026-09-24 false true false 0 ATB Capital Markets Corp. None Cormark Securities (USA) Limited 000101000 100 King Street W., Suite 1200 Toronto A6 ONTARIO, CANADA M5X 1C9 CA CALIFORNIA true National Bank of Canada Financial Inc. None National Bank Financial Inc. 000022698 65 E. 55th Street, 8th Floor New York NE NEBRASKA 10022 CA CALIFORNIA true Haywood Securities Inc. None Haywood Securities (USA) Inc. 000042072 200 Burrard Street, Suite 700 Vancouver A1 BRITISH COLUMBIA, CANADA V6C 3L6 CA CALIFORNIA true Canaccord Genuity Corp. None None None 1133 Melville Street, Suite 1200 Vancouver A1 BRITISH COLUMBIA, CANADA V65E 4E5 All States true SCP Resource Finance LP None None None 70 York Street, Suite 700 Toronto A6 ONTARIO, CANADA M5J 1S9 All States true Beacon Securities Limited None None None 66 Welllington Street W., Suite 4050 Toronto A6 ONTARIO, CANADA M5K 1H1 All States true H.C. Wainwright & Co., LLC 000000375 None None 430 Park Avenue, 4th Floor New York NY NEW YORK 10022 CA CALIFORNIA true Ventum Financial Corp. None None None Suite 2500, 733 Seymour Street Vancouver A1 BRITISH COLUMBIA, CANADA 0S6 6O4 All States true 212258 212258 0 Converted into U.S. Dollars using an exchange rate of C$1.4136 = US$1.00 false 1 10613 0 C$1.4136 = US$1.00 0 false First Mining Gold Corp. /s/ Richard Huang Richard Huang VP Corporate Development and Corporate Secretary 2026-10-01