 VANCOUVER, BC, June 8, 2021 PRNewswire - First Mining Gold Corp. First Mining or the Company TSX: FF OTCQX: FFMGF FRANKFURT: FMG is pleased to announce that, further to the Companys news release dated April 6, 2021, Big Ridge Gold Corp. Big Ridge TSXV: BRAU has received final approval from the TSX Venture Exchange in relation to the earn-in transaction that has been agreed to between First Mining and Big Ridge with respect to the Hope Brook Gold Project Hope Brook or the Project located in Newfoundland, Canada the Transaction. Accordingly, the Transaction has now closed, and Big Ridge has commenced its earn-in of up to an 80 interest in Hope Brook pursuant to the terms of the definitive earn-in agreement that was entered into between First Mining and Big Ridge on April 6, 2021 the Earn-In Agreement. 