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TGOL.V ·

Thunder Gold Upsizes Private Placement of Flow-Through Units to $2.15 Million

Financings

Thunder Gold Upsizes Private Placement of

Flow-Through Units to $2.15 Million

Thunder Bay, Ontario--(Newsfile Corp. - December 17, 2025) - Thunder Gold Corp. (TSXV: TGOL)

(FSE: Z25) (OTCQB: TGOLF) ("Thunder Gold" or the "Company") is pleased to announce that, due to

existing investor demand, it has increased the size of its non-brokered private placement of flow-through

units (the "Private Placement"), as previously announced on December 12, 2025, to up to 28,666,667

flow-through units (the "FT Units") at a price of $0.075 per FT Unit for aggregate gross proceeds of up to

approximately C$2,150,000. Proceeds of the Private Placement shall be used to fund the current

exploration program at the Company's 100%-owned, 2,500 hectare, Tower Mountain Gold Property,

located in the Shebandowan Greenstone Belt, 40 kilometres west of the port city of Thunder Bay, Ontario

and other "Canadian exploration expenses" that qualify as "flow-through mining expenditures" (as such

terms are defined in the

Income Tax Act

(Canada) (the "Tax Act")).

Each FT Unit consists of one common share of the Company and one-half of one (1/2) common share

purchase warrant (each whole warrant, a "Warrant"), each of which will qualify as a "flow-through share"

as defined in subsection 66(15) of the Tax Act. Each Warrant being exercisable for an additional

common share of the Company (each of which will not qualify as a "flow-through share" under the Tax

Act) at an exercise price of $0.10 for 18 months from the date of issue.

The Private Placement is expected to close on or about December 19, 2025, and is subject to approval

by the TSX Venture Exchange (the "TSXV"). All securities issued pursuant to the Private Placement will

be subject to a four (4) month plus a day hold period from the date of issuance in accordance with

applicable securities legislation and policies of the TSXV.

In connection with the Private Placement, the Company may pay finders' fees to eligible finders in

accordance with the policies of the TSXV consisting of a cash fee equal to up to 6% of the gross

proceeds raised under the Private Placement.

The securities issued pursuant to the Private Placement have not been, nor will they be, registered under

the United States Securities Act of 1933, as amended (the "U.S. Securities Act") or any state securities

laws, and may not be offered or sold to, or for the account or benefit of, persons in the United States or

U.S. persons absent registration under the U.S. Securities Act and all applicable state securities laws or

compliance with the requirements of an exemption therefrom. This press release shall not constitute an

offer to sell or the solicitation of an offer to buy nor shall there be any sale of the securities in any

jurisdiction in which such offer, solicitation or sale would be unlawful.

Qualified Person

Technical information in this news release has been reviewed and approved by Wes Hanson, P.Geo.,

President and CEO of Thunder Gold Corp., who is a Qualified Person under the definitions established

by NI 43-101.

About the Tower Mountain Gold Property

The 100%-owned Tower Mountain Gold Property is located adjacent to the Trans-Canada highway,

approximately 50-km west of Thunder Bay, Ontario. The 2,500-hectare property surrounds the largest,

exposed, intrusive complex in the eastern Shebandowan Greenstone Belt where most known gold

occurrences have been described as occurring either within, or proximal to, intrusive rocks. Gold at

Tower Mountain is localized within extremely altered rocks parallel to the western contact of the intrusive

center. Drilling has established anomalous gold extending out from the intrusive contact for over 500

metres along a 1,500-metre strike length, to depths of over 500 metres from surface. The remaining

75% of the perimeter surrounding the intrusion shows identical geology, alteration, and geophysical

response, offering a compelling exploration opportunity.

About Thunder Gold Corp.

Thunder Gold Corp. is a junior exploration company focused on gold discovery in Canada. For more

information about the Company please visit:

www.thundergoldcorp.com

.

On behalf of the Board of Directors,

Wes Hanson, P.Geo., President and CEO

For further information contact:

Wes Hanson, CEO

(647) 202-7686

[email protected]

NEITHER THE TSXV NOR ITS REGULATION SERVICES PROVIDER (AS THAT TERM IS

DEFINED IN THE POLICIES OF THE TSXV) ACCEPTS RESPONSIBILITY FOR THE

ADEQUACY OR ACCURACY OF THIS RELEASE.

The information contained herein contains "forward-looking information" and "forward-looking

statements" within the meaning of applicable securities legislation (collectively, "forward-looking

statements"). Forward-looking statements relate to information that is based on assumptions of

management, forecasts of future results, and estimates of amounts not yet determinable. All

statements, other than statements of historical fact, are forward-looking statements and are based on

predictions, expectations, beliefs, plans, projections, objectives and assumptions made as of the date

of this news release, including without limitation: the size of the Private Placement and other

statements concerning the Private Placement; the anticipated use of proceeds from the Private

Placement; closing and the expecting closing date of the Private Placement; the renunciation to the

purchasers of FT Units and timing thereof; the tax treatment of the FT Units and the Company's plans

regarding exploring its mineral exploration properties; anticipated results of geophysical drilling

programs, geological interpretations and potential mineral recovery. Any statement that involves

discussions with respect to predictions, expectations, beliefs, plans, projections, objectives,

assumptions, future events or performance (often but not always using phrases such as "expects", or

"does not expect", "is expected", "anticipates" or "does not anticipate", "plans", "budget", "scheduled",

"forecasts", "estimates", "believes" or "intends" or variations of such words and phrases or stating that

certain actions, events or results "may" or "could", "would", "might" or "will" be taken to occur or be

achieved) are not statements of historical fact and may be forward-looking statements.

Forward-looking statements are subject to a variety of risks and uncertainties which could cause

actual events or results to differ from those reflected in the forward-looking statements, including,

without limitation: risks related to failure to obtain adequate funding on a timely basis and on

acceptable terms; risks related to the outcome of legal proceedings; political and regulatory risks

associated with mining and exploration; risks related to the maintenance of stock exchange listings;

risks related to environmental regulation and liability; the potential for delays in exploration or

development activities or the completion of feasibility studies; the uncertainty of profitability; risks and

uncertainties relating to the interpretation of drill results, the geology, grade and continuity of mineral

deposits; risks related to the inherent uncertainty of production and cost estimates and the potential

for unexpected costs and expenses; results of prefeasibility and feasibility studies, and the possibility

that future exploration, development or mining results will not be consistent with the Company's

expectations; risks related to the gold price and other commodity price fluctuations; and other risks

and uncertainties related to the Company's prospects, properties and business detailed elsewhere in

the Company's disclosure record. Should one or more of these risks and uncertainties materialize, or

should underlying assumptions prove incorrect, actual results may vary materially from those

described in forward-looking statements. Investors are cautioned against attributing undue certainty or

reliance on forward-looking statements. These forward-looking statements are made as of the date

hereof and the Company does not assume any obligation to update or revise any forward-looking

statements, other than as required by applicable law, to reflect new information, events or

circumstances, or changes in management's estimates, projections or opinions. Actual events or

results could differ materially from those anticipated in the forward-looking statements or from the

Company's expectations or projections.

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

https://www.newsfilecorp.com/release/278334