 VANCOUVER, BC, June 23, 2021 PRNewswire - First Mining Gold Corp. First Mining or the Company TSX: FF OTCQX: FFMGF FRANKFURT: FMG announces that the Company is not aware of any material undisclosed information and wishes to make the following statements regarding recent sponsored news and marketing activities concerning its common shares. On June 21, 2021, OTC Markets Group Inc. OTC Markets informed the Company that it had become aware of certain promotional activities concerning the Company and its common shares, and sent First Mining copies of two newsletters sent by Portfolio Wealth Global Portfolio Wealth to its subscribers on June 20 and June 21, 2021, and a copy of a newsletter sent by National Inflation Association NAI to its subscribers on June 21, 2021 collectively, the Articles and requested comment from the Company. 