Mr. Daniel Wilton reports

FIRST MINING FILES PRELIMINARY BASE SHELF PROSPECTUS AND REGISTRATION STATEMENT

First Mining Gold Corp. has filed a preliminary short-form base shelf prospectus with the securities regulatory authorities in each of the provinces of Canada, and a corresponding registration statement on Form F-10 with the United States Securities and Exchange Commission under the U.S./Canada Multijurisdictional Disclosure System.

First Mining has filed the preliminary shelf prospectus and the registration statement to provide the company with greater financial flexibility going forward but has not entered into any agreements or arrangements to authorize or offer any securities (as defined below) at this time.

The preliminary shelf prospectus and the registration statement remain subject to completion or amendment. Once a receipt for a final short-form base shelf prospectus is received from the commissions and the corresponding registration statement is deemed effective by the SEC, First Mining may undertake offerings of common shares (including common shares issued on a flow-through basis), preferred shares, warrants, subscription receipts and units, or any combination thereof, up to an aggregate total of $100-million from time to time during the 25-month period that such final shelf prospectus remains effective. The securities may be offered in amounts, at prices and on terms to be determined at the time of sale, and, subject to applicable regulations, may include at-the-market transactions, public offerings or strategic investments. The specific terms of any offering of securities, including the use of proceeds from any offering, will be set forth in one or more shelf prospectus supplement(s) to be filed with applicable securities regulators.

Copies of the preliminary shelf prospectus and the registration statement can be found, respectively, under the company's SEDAR+ profile and on EDGAR, or may be obtained by request to Richard Huang, vice-president, corporate development, Suite 2070, 1188 West Georgia St., Vancouver, B.C., V6E 4A2, Canada (telephone: 1-844-306-8827), or to info@firstmininggold.com.

About First Mining Gold Corp.

First Mining is a gold developer advancing two of the largest gold projects in Canada, the Springpole gold project in Northwestern Ontario, where it has commenced a feasibility study and permitting activities are continuing with a draft environmental impact statement (EIS) for the project published in June, 2022, and the Duparquet project in Quebec, a preliminary-economic-assessment-stage development project located on the Destor-Porcupine fault zone in the prolific Abitibi region. First Mining also owns the Cameron gold project in Ontario and a portfolio of gold project interests, including the Pickle Crow gold project (being advanced in partnership with FireFly Metals Ltd.), the Hope Brook gold project (being advanced in partnership with Big Ridge Gold Corp.) and a large equity interest in Treasury Metals Inc.

First Mining was established in 2015 by Keith Neumeyer, founding president and chief executive officer of First Majestic Silver Corp.

We seek Safe Harbor.