Mr. Daniel Wilton reports

FIRST MINING ANNOUNCES 2026 SECOND QUARTER FINANCIAL RESULTS AND OPERATING HIGHLIGHTS

First Mining Gold Corp. has released its second quarter financial results for the quarter ended June 30, 2026. The financial statements and management's discussion and analysis (MD&A) are available on First Mining's website and have been posted under the company's profile on SEDAR+ and EDGAR.

Q2 2026 highlights:

• On June 30, 2026, the company announced that the Springpole gold project has received its federal environmental assessment (EA) approval. The Honourable Julie Aviva Dabrusin, Federal Minister of the Environment, Climate Change and Nature, announced, on behalf of Canada, that the company's Springpole gold project may proceed.
• On June 30, 2026, the company announced that it has entered into an agreement with Slate Falls Nation containing the key terms upon which the parties will negotiate a final project agreement for the Springpole gold project.
• On June 16, 2026, the company announced that Cat Lake First Nation and Lac Seul First Nation have completed their groundbreaking Anishnaabe-led impact assessment process and authorize the Springpole gold project subject to 35 negotiated terms. The company, Cat Lake First Nation and Lac Seul First Nation have finalized a term sheet agreement regarding the key benefits, environmental protection measures and conditions.
• On June 16, 2026, the company and Cat Lake First Nation announced the finalization of a landmark agreement to mobilize development of an all-season access road to Cat Lake First Nation in Northwestern Ontario.
• On May 21, 2026, the company announced the commencement of its 2026 exploration drilling program and the signing of a new drilling partnership at its Duparquet gold project with Forage Anicinape, an indigenous-led drilling company established through a partnership between Forages Rouillier and the Cooperative de solidarite de Pikogan, representing the Pikogan First Nation.
• On May 19, 2026, the company announced final results from the 2025 Duparquet drilling program targeting the newly discovered Minuit zone, as well as the North and South zone targets along the margins of the Beattie syenite intrusion. The recent drilling continues to demonstrate higher grade gold mineralization across multiple targets at the Duparquet gold project both along strike and, at depth, supported by a geoscience-driven exploration strategy focused on delineating mineralization along the main mineral resource contact zones.
• On April 29, 2026, the company announced that pursuant to the announcement on Feb. 3, 2026, the company's new joint venture partner at First Mining's Pickle Crow gold project, Bellavista Resources Ltd., closed the acquisition of Firefly Metal Ltd.'s interest in PC Gold Inc., the entity that holds Pickle Crow. Bellavista exercised its buydown right at Pickle Crow and paid $3-million in cash to the company to reduce the company's ownership in PC Gold from 30 per cent to 20 per cent. The company's interest in PC Gold is free carried to a decision to mine at Pickle Crow.
• As of June 30, 2026, the company's cash and marketable securities balance was $40.5-million, equity investment value of Seva Mining was $29-million and the equity interest in PC Gold was $14.3 million.

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 the federal environmental assessment for the Springpole project was approved in June, 2026, and the Duparquet gold 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 a 20-per-cent project interest in the Pickle Crow gold project in Ontario and large equity interest in Seva Mining Corp.

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

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