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THM.V ·

Thunder Mountain Gold Inc. Announces Board Appointment

Management Changes

Thunder Mountain Gold Inc. Announces Board

Appointment

Vancouver, British Columbia and Boise, Idaho--(Newsfile Corp. - October 3, 2025) - Thunder Mountain

Gold, Inc. (TSXV: THM) (OTCQB: THMG) (the "

Company

" or "

Thunder Mountain

") is pleased to

announce the unanimous Board approval of the appointment of Mr. Ralph Noyes, current Board Member,

as Chairman of the Board. This appointment will split the duties of the Chairmanship, from the President

and Chief Executive Officers duties.

"We're excited to have Ralph serve in this leadership role," commented Eric T. Jones, President and

CEO. "Ralph

has served on the Thunder Mountain Gold Board since 2016, and has excellent board

and executive level experience from his years as a mining company executive and consultant. He

has proven exploration and development experience that will be instrumental as we advance our

exploration and development plans."

Mr. Noyes is a seasoned international mining executive with over 45 years of experience. He has a

wealth of experience in exploration, mine and project management, executive management, junior

mining company boards, and investment portfolio management. Ralph spent a large part of his career as

Manager of Mines and Vice President of Metal Mining with Hecla Mining Company, with direct corporate

operations responsibility for Yellow Pine Mine – Stibnite Idaho (gold); Lucky Friday lead silver in Silver

Valley, Idaho; Republic – Knob Hill Mine -gold silver in Washington state; The Escalante silver mine in

Utah; and Hecla's interests in the Galena and Coeur Mine in the Silver Valley, Idaho, and the Greens

Creek Mine in Alaska, along with the Rosebud Mine in Pershing County, Nevada.

His group discovered

and developed both the Golden Promise deposit in Republic and the Gold Hunter deposit near the Lucky

Friday Mine in Idaho. Ralph also managed several massive sulfide, gold, beryllium, germanium and

gallium projects across North America - from Mexico to Canada. Ralph most recently spent 15 years in

investment portfolio management with Salomon Smith Barney, then Wells Fargo Advisors.

He worked

with individuals and small businesses, specializing in working with mining executives.

The appointment reflects Thunder Mountain Gold's continued commitment and vision to advancing the

South Mountain resource to production and exploration of the South Mountain.

This news release shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there

be any sale of these securities in any state or jurisdiction in which the offer, solicitation or sale would be

unlawful.

Regarding Thunder Mountain Gold, Inc.

Thunder Mountain Gold Inc., a junior exploration company founded in 1935, owns interests in base and

precious metals projects in the western U.S. The Company's principal asset is The South Mountain

Mine, a historic former Anaconda Mining development of zinc, silver, gold, lead, and copper, located on

private land in Owyhee County Idaho. Thunder Mountain Gold also owns 100% of the Trout Creek

Project – a gold exploration project located along the western flank of the Shoshone Mountain Range in

the Reese River Valley, adjacent to and surrounded by Nevada Gold Mines, a Barrick and Newmont

Gold, Inc. joint venture. For more information on Thunder Mountain Gold, please visit the Company's

website at

www.Thundermountaingold.com

.

The South Mountain Project

The South Mountain Mine is a polymetallic development project containing high-grade zinc, silver, gold,

and copper, and is located on private land approximately 70 miles southwest of Boise, Idaho (See

Figure 1 above). The Project is on private land, permitting has been, and should remain straightforward.

The Project was intermittently mined from the late from 1940s to the late 1960s, most notably by

Anaconda Copper, with over 4,000 feet of underground developmental workings that that have been

rehabilitated, re-engineered, and are MSHA compliant. Thunder Mountain Gold Inc. purchased and

advanced the project from 2007 through Present, with expenditures into the project of approximately

US$25 million. Historic test mining and processing at the Project has mostly come from high-grade

Carbonate Replacement Deposits (CRD) and skarn zones that remain open at depth and along strike.

According to historical smelter records, approximately 53,642 tons of mineralized material have been

mined and direct shipped to the smelter, with average grades;

14.5% Zn, 10.6 o.p.t. Ag (363.42 g/t

Ag), 0.058 o.p.t. Au

(

1.98 g/t Au), 1.4% Cu, and 2.4% Pb

were realized (See SK-1300 Technical

Resource Statement, and NI 43-101 Technical Report: Updated Mineral Resource Estimate for the

South Mountain Project, dated December 31, 2023, and December 15, 2023, respectively. More details

are available on the Thunder Mountain Gold Inc. website and at

www.SEC.gov

, and

www.sedarplus.ca

).

Technical Data in this Release

The technical information in this news release was reviewed and approved by Tyson Forbush, C.P.G.,

consulting geologist with GeoTech LLC, and a "Qualified Person" as defined by the U.S. SK-1300

regulations & National Instrument 43-101 (Canada) standards.

Forward-Looking Statements

This press release contains forward-looking statements that are based on the beliefs of management

and reflect the Company's current expectations. Generally, forward-looking statements can be identified

by the use of forward-looking terminology such as "plans", "expects", "is expected", "budget",

"scheduled", "estimates", "forecasts", "intends", "anticipates", "believes" or variations of such words and

phrases or statements that certain actions, events or results "may", "could", "would", "might" or "will be

taken", "occur" or "be achieved" or the negative connotation thereof.

The forward-looking statements are

based on certain assumptions, which could change materially in the future. By their nature, forward-

looking information involves known and unknown risks, uncertainties and other factors that may cause

actual results, performance or achievements to be materially different from any future results,

performance or achievements expressed or implied by the forward-looking information. There can be no

assurance that forward-looking information will prove to be accurate, as actual results and future events

could differ materially from those anticipated in such statements. Accordingly, investors should not place

undue reliance on forward-looking information. Forward-looking information is provided as of the date of

this press release, and the Company assumes no obligation to update or revise them to reflect new

events or circumstances, except as required in accordance with applicable laws.

Cautionary Note to Investors

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in

policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this

release.

For further information, please contact:

Thunder Mountain Gold, Inc.

Eric T. Jones

President and Chief Executive Officer

[email protected]

Office: (208) 658-1037

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/269043