First Mining Gold Corp. — Regulatory Filings 2021

Sep 29, 2021

September 29, 2021

TO: British Columbia Securities Commission Alberta Securities Commission Financial and Consumer Affairs Authority of Saskatchewan Manitoba Securities Commission Ontario Securities Commission Financial and Consumer Services Commission (New Brunswick) Nova Scotia Securities Commission Office of the Superintendent of Securities, Prince Edward Island Office of the Superintendent of Securities, Newfoundland and Labrador Autorité des marchés financiers, Québec

Dear Sirs/Mesdames:

Re: First Mining Gold Corp. Base Shelf Prospectus dated September 29, 2021 (the “Prospectus”)

This letter is being filed as the consent of Mark Drabble, B. App. Sci. (Geology), MAIG, MAusIMM, to being named in the Prospectus and to the use of the report entitled “Technical Report on the Cameron Gold Deposit, Ontario, Canada” with an effective date of January 17, 2017 (the “ Report ”) in connection with the filing of the Prospectus and to the inclusion of the written disclosure of the Report and of extracts from or a summary of the Report in the written disclosure contained in the Prospectus or incorporated by reference therein.

I hereby confirm that I have read the Prospectus, including the written disclosure of the Report and of extracts from or a summary of the Report contained in the Prospectus or incorporated by reference therein, and have no reason to believe that there are any misrepresentations in the information contained therein that is derived from the Report or that is within my knowledge as a result of the services performed by me in connection with the Report.

References to the Prospectus include all documents incorporated by reference therein.

Sincerely,

(signed) “Mark Drabble, B. App. Sci. (Geology), MAIG, MAusIMM” Mark Drabble, B. App. Sci. (Geology), MAIG, MAusIMM