FFMGF 6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANTTO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of March 2025

Commission File Number: 000-55607

First MiningGold Corp.

(Translation of registrant's name into English)

Suite 2070, 1188 West Georgia Street, Vancouver, B.C., V6E4A2

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☐     Form 40-F ☒

DOCUMENTS FILED AS PART OF THIS FORM 6-K

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Exhibit 99.1

First Mining Receives Final US$5 Million Payment from First Majestic in Connection with Springpole Gold Project Silver Stream

VANCOUVER, BC, March 28, 2025 /CNW/ - First MiningGold Corp. ("First Mining" or the "Company") (TSX: FF) (OTCQX: FFMGF) (FRANKFURT: FMG) announces that it has received the final payment of US$5 million from First Majestic Silver Corp. ("First Majestic") in connection with the silver stream that First Majestic has over First Mining's Springpole Gold Project ("Springpole Project") located in northwestern Ontario.  On June 10, 2020, First Mining, Gold Canyon Resources Inc. (First Mining's wholly-owned subsidiary that owns the Springpole Project) and First Majestic entered into a silver purchase agreement (the "Silver Purchase Agreement") pursuant to which First Majestic was granted a stream over silver produced from the Springpole Project in exchange for certain cash and share payments.  The parties recently entered into an amending agreement to the Silver Purchase Agreement on March 13, 2025 (the "Amending Agreement") to amend the terms of the final payment due from First Majestic under the Silver Purchase Agreement (the "Tranche 3 Payment"), such that the Tranche 3 Payment would be for US$5 million in cash, and payable on or before March 31, 2025.

As consideration for amending the terms of the Tranche 3 Payment, First Mining has amended the terms of the common share purchase warrants (the "Warrants") that were issued to First Majestic on July 2, 2020 under the terms of the Silver Purchase Agreement.  The 32,050,228 Warrants that were issued to First Majestic had an exercise price of $0.374 per Warrant and were set to expire on July 2, 2025.  Pursuant to the Amending Agreement, the exercise price of the Warrants has been revised to $0.20, and the expiry date of the Warrants has been extended to March 31, 2028.  In addition, if the closing price of the Company's common shares on the Toronto Stock Exchange (the "TSX") equals or exceeds $0.30 for 45 consecutive trading days, First Mining may accelerate the expiry date of the Warrants to the date which is 30 days following the dissemination of a news release announcing the acceleration.  The amended terms of the Warrants were approved by the TSX, and all other terms and conditions of the Warrants remain unchanged.  None of the Warrants being extended are held by insiders of the Company.

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 we have commenced a Feasibility Study and permitting activities are on-going with a final Environmental Impact Statement / Environmental Assessment for the project submitted in November 2024, and the Duparquet Gold Project in Quebec, a PEA-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.) and the Hope Brook Gold Project (being advanced in partnership with Big Ridge Gold Corp.).

First Mining was established in 2015 by Mr. Keith Neumeyer, founding President and CEO of First Majestic Silver Corp.

**ON BEHALF OF FIRST MINING GOLD CORP.**Daniel W. Wilton

Chief Executive Officer and Director

Cautionary Note Regarding Forward-Looking Statements

This news release includes certain "forward-lookinginformation" and "forward-looking statements" (collectively "forward-looking statements") within the meaningof applicable Canadian and United States securities legislation including the United States Private Securities Litigation Reform Act of1995. These forward-looking statements are made as of the date of this news release. Forward-looking statements are frequently, but notalways, identified by words such as "expects", "anticipates", "believes", "plans", "projects","intends", "estimates", "envisages", "potential", "possible", "strategy","goals", "opportunities", "objectives", or variations thereof or stating that certain actions, events orresults "may", "could", "would", "might" or "will" be taken, occur or be achieved, orthe negative of any of these terms and similar expressions.

Forward-looking statements in this news release,including, without limitation, statements proposed extension of the expiry dates of the Warrants, relate to future events or future performanceand reflect current estimates, predictions, expectations or beliefs regarding future events.  All forward-looking statements arebased on First Mining's or its consultants' current beliefs as well as various assumptions made by them and information currently availableto them. There can be no assurance that such statements will prove to be accurate, and actual results and future events could differ materiallyfrom those anticipated in such statements. Forward-looking statements reflect the beliefs, opinions and projections on the date the statementsare made and are based upon a number of assumptions and estimates that, while considered reasonable by the respective parties, are inherentlysubject to significant business, economic, competitive, political and social uncertainties and contingencies. Such factors include, withoutlimitation the Company's business, operations and financial condition potentially being materially adversely affected by the outbreakof epidemics, pandemics or other health crises, and by reactions by government and private actors to such outbreaks; risks to employeehealth and safety as a result of the outbreak of epidemics, pandemics or other health crises, that may result in a slowdown or temporarysuspension of operations at some or all of the Company's mineral properties as well as its head office; fluctuations in the spotand forward price of gold, silver, base metals or certain other commodities; fluctuations in the currency markets (such as the Canadiandollar versus the U.S. dollar); changes in national and local government, legislation, taxation, controls, regulations and political oreconomic developments; risks and hazards associated with the business of mineral exploration, development and mining (including environmentalhazards, industrial accidents, unusual or unexpected formations, pressures, cave-ins and flooding); the presence of laws and regulationsthat may impose restrictions on mining; employee relations; relationships with and claims by local communities, indigenous populationsand other stakeholders; availability and increasing costs associated with mining inputs and labour; the speculative nature of mineralexploration and development; title to properties.; and the additional risks described in the Company's Annual Information Form for theyear ended December 31, 2023 filed with the Canadian securities regulatory authorities under the Company's SEDAR+ profile at www.sedarplus.ca,and in the Company's Annual Report on Form 40-F filed with the SEC on EDGAR.

First Mining cautions that the foregoing list offactors that may affect future results is not exhaustive. When relying on our forward-looking statements to make decisions with respectto First Mining, investors and others should carefully consider the foregoing factors and other uncertainties and potential events. FirstMining does not undertake to update any forward-looking statement, whether written or oral, that may be made from time to time by theCompany or on our behalf, except as required by law.

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SOURCE First Mining Gold Corp.

View original content to download multimedia: http://www.newswire.ca/en/releases/archive/March2025/28/c1091.html

%CIK: 0001641229

For further information: For further information, please contact: Toll Free: 1 844 306 8827 | Email: [email protected]; Paul Morris | Director, Investor Relations | Email: [email protected]

CO: First Mining Gold Corp.

CNW 07:00e 28-MAR-25