First Mining Gold Corp. — Regulatory Filings 2021

Mar 25, 2021

Alberta Securities Commission

FORM 13-501F1 CLASS 1 REPORTING ISSUERS and CLASS 3B REPORTING ISSUERS - PARTICIPATION FEE

MANAGEMENT CERTIFICATION

Samir Patel I, , an officer of the reporting issuer noted below have examined this Form 13-501F1 (the Form ) being submitted hereunder to the Alberta Securities Commission and certify that to my knowledge, having exercised reasonable diligence, the information provided in the Form is complete and accurate.

, an officer of the reporting issuer noted below have examined this Form 13-501F1 (the Form Securities Commission and certify that to my knowledge, having exercised reasonable diligence, the information provided in the Form is complete and accurate. (s) (signed) "Samir Patel" March 25, 2021 Name: Samir Patel Date Title: General Counsel & Corporate Secretary

Reporting Issuer Name: First Mining Gold Corp. End date of previous financial year: December 31, 2020 Type of Reporting Issuer: Class 1 reporting issuer Class 3B reporting issuer Highest Trading Marketplace: TSX (refer to the definition of “highest trading marketplace” under ASC Rule 13-501 Fees ) Market value of listed or quoted securities: (in Canadian Dollars - refer to section 52 of ASC Rule 13-501 Fees ) Equity Symbol FF 1st Specified Trading Period (dd/mm/yy) (refer to the definition of “specified trading period” under ASC Rule 13-501 Fees ) 1-Jan-2020 to 31-Mar-2020 Closing price of the security in the class or series on the last trading day of the specified trading period in which such security was listed or quoted on the highest trading marketplace $0.180[(i)] Number of securities in the class or series of such security outstanding at the end of the last trading day of the specified trading period 622,619,453[(ii)] Market value of class or series (i) x (ii) = $112,071,501.54 (A) 2nd Specified Trading Period (dd/mm/yy) (refer to the definition of “specified trading period” under ASC Rule 13-501 Fees ) 1-Apr-2020 to 30-Jun-2020 Closing price of the security in the class or series on the last trading day of the specified trading period in which such security was listed or quoted on the highest trading marketplace $0.425[(iii)] Number of securities in the class or series of such security outstanding at the end of the last trading day of the specified trading period 633,376,453[(iv)] Market value of class or series (iii) x (iv) = $269,184,992.53 (B) 3rd Specified Trading Period (dd/mm/yy) (refer to the definition of “specified trading period” under ASC Rule 13-501 Fees ) 1-Jul-2020 to 30-Sep-2020 Closing price of the security in the class or series on the last trading day of the specified trading period in which such security was listed or quoted on the highest trading marketplace $0.485[(v)] Number of securities in the class or series of such security outstanding at the end of the last trading day of the specified trading period 692,591,453[(vi)] Market value of class or series (v) x (vi) = $335,906,854.71 (C)

4 th Specified Trading Period (dd/mm/yy) (refer to the definition of “specified trading period” under ASC Rule 13-501_Fees_) 1-Jan-2020 to 31-Dec-2020 Closing price of the security in the class or series on the last trading day of the specified trading period in which such security was listed or quoted on the highest trading marketplace $0.400 Number of securities in the class or series of such security outstanding at the end of the last trading day of the specified trading period 697,216,453 Market value of class or series (vii) x (viii) = 5 th Specified Trading Period (dd/mm/yy) (if applicable - refer to the definition of “specified trading period” under ASC Rule 13-501_Fees_) N/A to N/A Closing price of the security in the class or series on the last trading day of the specified trading period in which such security was listed or quoted on the highest trading marketplace Number of securities in the class or series of such security outstanding at the end of the last trading day of the specified trading period Market value of class or series (ix) x (x) = Average Market Value of Class or Series (Calculate the simple average of the market value of the class or series of security for each applicable specified trading period (i.e. A through E above)) Fair value of outstanding debt securities: (Provide details of how value was determined) Capitalization for the previous financial year (1) + (2) Participation Fee (For Class 1reporting issuers (Paragraph 15(1)(a)), from Appendix A of ASC Rule 13-501_Fees_, select the participation fee) (For Class 3Breporting issuers (Paragraph 15(1)(c)), from Appendix B of ASC Rule 13-501_Fees_, select the participation fee) Late Fee,if applicable (As determined under section 34(1) of ASC Rule 13-501_Fees_) Total Fee Payable (Participation Fee plus Late Fee) (Repeat the above calculation for each other class or series of equity securities of the reporting issuer (and a subsidiary, if applicable) that was listed or quoted on a marketplace at the end of the previous financial year)				(vii) (viii) $278,886,581.20 (D) (ix) (x) $0.00 (E) $249,012,482.49 (1) $0.00 (2) $249,012,482.49 $6,500 $0 $0.00 $6,500.00
	1-Jan-2020	to	31-Dec-2020
			$0.400
			697,216,453
			(vii) x (viii) =
	N/A	to	N/A

December 1, 2016 - ASC Rule 13-501 Fees (Form 13-501F1)