Thunder Gold Files NI 43-101 Technical Report for the Tower Mountain Property Mineral Resource Estimate

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Thunder Gold (TSXV: TGOL; OTCQB: TGOLF) filed an NI 43-101 Technical Report dated March 9, 2026 (effective January 19, 2026) supporting the Mineral Resource Estimate for its 100%‑owned Tower Mountain Gold Property, 40 km from Thunder Bay, Ontario. The Report was prepared by Micon International and is available on the company's website and SEDAR+.

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Thunder Bay, Ontario--(Newsfile Corp. - March 10, 2026) - Thunder Gold Corp. (TSXV: TGOL) (FSE: Z25) (OTCQB: TGOLF) ("Thunder Gold" or the "Company") is pleased to announce that it has filed the NI 43-101 Technical Report (the "Report") supporting the Mineral Resource Estimate ("MRE") for its 100%-owned, Tower Mountain Gold Property (the "Project"), located 40 kilometres from the port city of Thunder Bay, Ontario. The Report is dated March 9, 2026 with an effective date of January 19, 2026.

The Report is titled " NI 43-101 Technical Report for the 2026 Mineral Resource Estimate on the Tower Mountain Project, Ontario, Canada." The Report was prepared by Charley Murahwi, P.Geo., FAusIMM.; William Lewis, P.Geo., Tudorel Ciuculescu, P.Geo., and Richard Gowans, P.Eng., all of Micon International Limited, Toronto, Ontario, Canada. The Report has been prepared in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects ("NI 43-101") and CIM Definition Standards of Mineral Resources and Mineral Reserves.

The Report is available on the Company's website at www.thundergoldcorp.com and on SEDAR+ (www.sedarplus.ca) under the Company's Issuer profile.

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 40 km west of the international port city 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 surrounding the Tower Mountain Intrusive Complex, a multi-phase, long duration intrusive complex that control gold distribution on the Property. Historical 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 is advancing the Tower Mountain Project in Thunder Bay, Ontario - an emerging gold system with the scale, consistency, and quality to support a long-life, open-pit operation. Results from our disciplined drill programs have consistently reinforced confidence in the continuity and predictability of the discovery, while highlighting significant potential for expansion across multiple zones of the Tower Mountain Intrusive Complex. With industry-leading drilling costs, existing infrastructure and a skilled local workforce, Tower Mountain represents a rare combination of size, scalability, and cost-effective growth.

At Thunder Gold, our vision is clear: to unlock a discovery that has the potential to become a transformational gold project, delivering long-term value for shareholders while contributing to the future of Canada's mining industry. 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
whanson@thundergoldcorp.com

Kaitlin Taylor, Investor Relations
IR@thundergoldcorp.com

NEITHER THE TSX VENTURE EXCHANGE NOR ITS REGULATION SERVICES PROVIDER (AS THAT TERM IS DEFINED IN THE POLICIES OF THE TSX VENTURE EXCHANGE) 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; 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 financing 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/287777

FAQ

What did Thunder Gold (TGOLF) file on March 10, 2026 regarding Tower Mountain?

Thunder Gold filed an NI 43-101 Technical Report dated March 9, 2026 supporting the Tower Mountain MRE. According to the company, the Report was prepared by Micon International and is available on the company website and SEDAR+ for investor review.

What is the effective date of the NI 43-101 Technical Report for Tower Mountain (TGOLF)?

The Report has an effective date of January 19, 2026 and is dated March 9, 2026. According to the company, the document supports the 2026 Mineral Resource Estimate and was authored by qualified geoscience professionals from Micon International.

Where can investors access the Tower Mountain NI 43-101 Report for TGOLF?

Investors can access the Report on the company's website and on SEDAR+. According to the company, the filing appears under the issuer profile on SEDAR+ and the full Technical Report is hosted on the Thunder Gold corporate website.

Who prepared and reviewed the Tower Mountain Technical Report filed by TGOLF?

The Report was prepared by Micon International geologists and engineers and reviewed by Wes Hanson, P.Geo., CEO of Thunder Gold. According to the company, Wes Hanson is the Qualified Person who approved the technical information under NI 43-101.

What property and location does the TGOLF NI 43-101 Report cover?

The Report covers the 100%‑owned Tower Mountain Gold Property, located about 40 kilometres from Thunder Bay, Ontario. According to the company, the Technical Report supports the 2026 Mineral Resource Estimate for that project.

Does the NI 43-101 filing for TGOLF include Mineral Resource numbers in the news release?

The news release announces filing of the Technical Report but does not publish Mineral Resource quantities in the release itself. According to the company, detailed MRE figures are contained within the filed NI 43-101 Technical Report available online.