 VANCOUVER, BC, Sept. 29, 2021 PRNewswire - First Mining Gold Corp. First Mining or the Company TSX: FF OTCQX: FFMGF FRANKFURT: FMG announces that it has filed and obtained a receipt for its final short form base shelf prospectus the Final Shelf Prospectus with the securities commissions in each of the provinces and territories of Canada, and a corresponding registration statement on Form F-10 the Registration Statement with the United States Securities and Exchange Commission the SEC under the U.S.Canada Multijurisdictional Disclosure System. 