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First Mining Announces Socio-Economic Analysis for the Springpole Gold Project

Corporate Updates

TSX: FF

OTCQX: FFMGF

FRANKFURT: FMG

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NEWS RELEASE

First Mining Announces Socio-Economic Analysis for the Springpole Gold Project

January 7, 2026 – Vancouver, Canada – First Mining Gold Corp. (“First Mining” or the “Company”) (TSX:

FF) (OTCQX: FFMGF) (FRANKFURT: FMG) is pleased to announce the results of the updated socio-economic

analysis (the “Updated Analysis”) for the Company’s 100% owned Springpole Gold Project (the “Project” or

“Springpole”) located in Ontario , Canada. The final Environmental Impact Statement/Environmental

Assessment (“EA/EIS”) submitted to Ontario and Canada in November 2024 included an analysis of the

Project benefits. This analysis has been updated based on the recently announced updated Pre-Feasibility

Study (the “PFS”). The Updated Analysis undertaken by WSP Canada Inc. demonstrates the major benefits

to the local region around the Project, to Ontario and to Canada.

“We are pleased to announce the socio-economic analysis results for Springpole, which demonstrate the

potential for the Project to be one of the largest economic drivers of Northwestern Ontario for generations to

come,” stated Dan Wilton, CEO of First Mining. “The Project will generate billions of dollars in government

revenue, deliver hundreds of jobs and careers in the local region, provide significant contracting opportunities

for regional and Indigenous businesses and add billions of dollars to the gross domestic product at a critical

time for the Ontario and Canadian economy . Springpole is a transformative gold and silver project that will

provide unprecedented opportunities and infrastructure improvements for the Indigenous and local

communities in the area.”

The Updated Analysis considers the socio-economic impact during the construction, operations and closure

phases. In the current gold price environment, and accounting for direct, indirect and induced employment

opportunities, the Project is capable of delivering 3,340 jobs in each year of construction and 5,910 jobs

during each year of operations for a total of over 67,000 person-years of employment. In addition, the Project

is expected to generate over $7 billion of tax revenue for governments and contribute $15 billion to the Gross

Domestic Product.

Nearing the end of both the provincial and federal EA /EIS processes, the Project is positioned as one of the

few near-term economic development opportunities in the Canadian mining sector. The Project will provide

long-term economic stability and development throughout northwestern Ontario, where other sectors and

industries operating in the region have been experiencing a decline in activity.

First Mining is committed to its on -going work with local and Indigenous communities, Ontario and Canada

towards the development of the Project in a manner that achieves both a high level of socio-economic benefit

and environmental protection.

About First Mining Gold Corp.

First Mining is a gold developer advancing two of the largest gold projects in Canada, th e 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 30% project interest in the Pickle Crow Gold Project.

TSX: FF

OTCQX: FFMGF

FRANKFURT: FMG

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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

For further information, please contact:

Toll Free: 1 844 306 8827 | Email: [email protected]

Paul Morris | Director, Investor Relations | Email: [email protected]

Cautionary Note Regarding Forward-Looking Statements

This news release includes certain “forward -looking information” and “forward -looking statements” (collectively

“forward-looking statements”) within the meaning of applicable Canadian and United States securities legislation

including the United States Private Securities Litigation Reform Act of 1995. These forward-looking statements are made

as of the date of this news release. Forward -looking statements are frequently, but not always, identified by words such

as “expects”, “anticipates”, “believes”, “plan s”, “projects”, “intends”, “estimates”, “envisages”, “potential”,

“possible”, “strategy”, “goals”, “opportunities”, “objectives”, or variations thereof or stating that certain actions, events

or results “may”, “could”, “would”, “might” or “will” be taken, occur or be achieved, or the negative of any of these terms

and similar expressions.

Forward-looking statements in this news release relate to future events or future performance and reflect current

estimates, predictions, expectations or beliefs regarding future events and include, but are not limited to, First Mining’s

plans related to its Springpole, Duparquet and other projects. All forward-looking statements are based on First Mining's

or its consultants' current beliefs as well as various assumptions made by them and information currently available to

them. There can be no assurance that such statements will prove to be accurate, and actual results and future events

could differ materially from those anticipated in such statements. Forward -looking statements reflect the beliefs,

opinions and projections on the date the statements are made and are based upon a number of assumptions and

estimates that, while considered reasonable by the respective parties, are inherently subject to significant business,

economic, competitive, political and social uncertainties and contingencies. Such factors include, without limitation the

Company’s business, operations and financial condition potentially being materially adversely affected by the outbreak

of epidemics, pandemics or other health crises, and by reactions by government and private actors to such outbreaks;

risks to employee health and safety as a result of the outbreak of epidemics, pandemics or other health crises, that may

result in a slowdown or temporary suspension of operations at some or all of the Company's mineral properties as well

as its head office; fluctuations in the spot an d forward price of gold, silver, base metals or certain other commodities;

fluctuations in the currency markets (such as the Canadian dollar versus the U.S. dollar); changes in national and local

government, legislation, taxation, controls, regulations and political or economic developments; risks and hazards

associated with the business of mineral exploration, development and mining (including environmental hazards,

industrial accidents, unusual or unexpected formations, pressures, cave -ins and flooding); the presence of laws and

regulations that may impose restrictions on mining; employee relations; relationships with and claims by local

communities, indigenous populations and other stakeholders; availability and increasing costs associated with mining

inputs and labour; the speculative nature of mineral exploration and development; title to properties.; and the additional

risks described in the Company’s Annual Information Form for the year ended December 31, 2024 filed with the

Canadian securities regulat ory 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 of factors that may affect future results is not exhaustive. When relying on our

forward-looking statements to make decisions with respect to First Mining, investors and others should carefully

consider the for egoing factors and other uncertainties and potential events. First Mining does not undertake to update

TSX: FF

OTCQX: FFMGF

FRANKFURT: FMG

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any forward-looking statement, whether written or oral, that may be made from time to time by the Company or on our

behalf, except as required by law.