Thunder Mountain Gold, Inc. News Releases

Thunder Mountain Gold Announces Proposed Shares for Debt Settlement

Wed, 08 Jul 2026 17:41:00 -0400

Vancouver, British Columbia and Boise, Idaho--(Newsfile Corp. - July 8, 2026) - Thunder Mountain Gold, Inc. (TSXV: THM) (OTCQB: THMG) (the "Company" or "Thunder Mountain") is pleased to announce that its board of directors has approved the proposed issuance of up to 1,578,036 Common Shares at a deemed price per Common Share of US$0.70 (CAD$1.00) to settle outstanding compensations payable to the President and Chief Executive Officer (the "Insider") and to certain former service providers of the Company, including one former officer, in aggregate debt amount of US$1,104,625 (CAD$1,578,036) (the "Debt Settlement").

The issuance of 670,714 Common Shares to the Insider in satisfaction of US$469,500 constitutes a "related party transaction" as defined in Multilateral Instrument 61-101 - Protection of Minority Securityholders in Special Transactions ("MI 61-101"). The Company is relying on the exemption from valuation requirement and minority approval pursuant to subsections 5.5(a) and 5.7(1)(a) of MI 61-101, respectively, as the participation by the Insider in the Debt Settlement does not represent more than 25% of the fair market value of the Company's market capitalization.

The completion of the Debt Settlement remains subject to the approval of the TSX Venture Exchange.

The Common Shares have not been and will not be registered under the U.S. Securities Act of 1933, as amended (the "Securities Act"), or any U.S. state securities laws. The Debt Settlement will be conducted in the United States pursuant to Section 4(a)(2) of the Securities Act and/or Rule 506(b) of Regulation D promulgated thereunder. The Common Shares will constitute "restricted securities" under the Securities Act and shall bear a U.S. restrictive legend, in addition to such additional legends as shall be required under applicable Canadian securities legislation and the policies of the TSX Venture Exchange.

The Common Shares issued in the Debt Settlement will be subject to a four-month hold period in accordance with the policies of the TSX Venture Exchange and applicable Canadian securities legislation, in addition to such other restrictions as may apply under the Securities Act.

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 silver, gold, zinc, copper, and lead, 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. The Project is on private land, permitting has been, and should remain straightforward. The Project was intermittently mined from the late 1940s to the late 1960s, most notably by Anaconda Copper, with over 8,000 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 Steven A. Osterberg, Ph.D., P.G., Q.P. consulting geologist, and is a "Qualified Person" as defined by the U.S. S-K 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
eric@thundermountaingold.com
Office: (208) 658-1037

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/304464

Thunder Mountain Gold Announces Private Placement Financing

Wed, 08 Jul 2026 17:38:00 -0400

Vancouver, British Columbia and Boise, Idaho--(Newsfile Corp. - July 8, 2026) - Thunder Mountain Gold, Inc. (TSXV: THM) (OTCQB: THMG) (the "Company" or "Thunder Mountain") is pleased to announce that its board of directors has approved a non-brokered private placement, as described further below, for an aggregate value of up to approximately US$6.4 million in gross proceeds raised through the issuance of up to 9,143,000 units of the Company (each, a "Unit") at a price of US$0.70 (CAD$1.00) (the "Private Placement"). Each Unit will consist of one share of the Company's common stock (each, a "Common Share") and one-half common share purchase warrant (each whole warrant, a "Warrant"). Each Warrant will entitle the holder to purchase one additional Common Share (each, a "Warrant Share") at a price of US$1.00 (CAD$1.42) for a period of 24 months from the date of issuance. Subject to regulatory approval, the Company may close the Private Placement in one or more tranches.

The proceeds raised pursuant to the Private Placement will be used for advancing the South Mountain Project, including drilling, assaying, geophysical surveys, and general administration to carry out these programs.

The completion of the Private Placement remains subject to the approval of the TSX Venture Exchange.

The Units, the underlying Common Shares and Warrants, and the Warrant Shares issuable upon exercise of the Warrants, have not been and will not be registered under the U.S. Securities Act of 1933, as amended (the "Securities Act"), or any U.S. state securities laws, and may not be offered or sold in the United States absent registration or an applicable exemption from registration requirements. The Private Placement will be conducted (i) in the United States pursuant to Section 4(a)(2) of the Securities Act and/or Rule 506(b) of Regulation D promulgated thereunder (the "U.S. Offering"), and (ii) outside the United States pursuant to Regulation S under the Securities Act (the "Regulation S Offering"). The Warrants may not be exercised by or for the account or benefit of a U.S. person or a person in the United States absent an exemption from the registration requirements of the Securities Act and any applicable U.S. state securities laws. The Units, the underlying Common Shares and Warrants, and any Warrant Shares issued upon exercise of the Warrants, will be "restricted securities" under the Securities Act and shall bear a U.S. restrictive legend, in addition to such additional legends as shall be required under applicable Canadian securities legislation and the policies of the TSX Venture Exchange.

Subject to the approval of the TSX Venture Exchange, the Company intends to pay finder's fees to certain finders (collectively, the "Finders") in an amount up to 6% of the gross proceeds raised under the Private Placement and by the issuance of that number of non-transferable common share purchase warrants (the "Finder Warrants"). Each Finder Warrant will entitle the holder to acquire one common share in the capital of the Company (the "Finder Warrant Share") at a price of US$1.00 (CAD$1.42) per Finder Warrant Share for a period of 24 months from the date of issuance. Any Finder that receives compensation in connection with the offer or sale of securities in the United States or to U.S. persons, or otherwise engages in activities that would constitute acting as a "broker" within the meaning of Section 3(a)(4) of the U.S. Securities Exchange Act of 1934, as amended (the "Exchange Act"), must either: (i) be registered as a broker-dealer with the U.S. Securities and Exchange Commission (the "SEC") pursuant to Section 15(a) of the Exchange Act; or (ii) qualify for an applicable exemption from such registration requirement under U.S. federal securities laws.

The securities issued in the Private Placement will be subject to a four-month hold period in accordance with the policies of the TSX Venture Exchange and applicable Canadian securities legislation, in addition to such other restrictions as may apply under the Securities Act.

This press release is being issued pursuant to and in accordance with Rule 135c under the Securities Act.

Regarding Thunder Mountain Gold, Inc.

The South Mountain Project

Technical Data in this Release

Forward-Looking Statements

Cautionary Note to Investors

For further information, please contact:

Thunder Mountain Gold, Inc.
Eric T. Jones
President and Chief Executive Officer
eric@thundermountaingold.com
Office: (208) 658-1037

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/304462

Thunder Mountain Gold Launches 2026 Drill Program at South Mountain

Mon, 22 Jun 2026 09:30:00 -0400

Boise, Idaho--(Newsfile Corp. - June 22, 2026) - Thunder Mountain Gold, Inc. (OTCQB: THMG) (TSXV: THM) ("Thunder Mountain Gold" or the "Company") is pleased to announce the launch of its 2026 exploration drilling campaign at the South Mountain Project in southern Idaho (the "South Mountain" or the "Project"). The Company's initial 10,000-foot program is designed to expand the established carbonate replacement deposit (CRD) silver, zinc, copper, lead and gold massive sulfide resource, while also advancing the first drill tests of compelling district-scale copper-gold targets. This new campaign marks an important step in unlocking the broader value potential of the South Mountain district for shareholders and resource investors worldwide.

Drilling Focus for 2026

Resource Expansion and Step-Out Potential - The initial 10,000-foot program is now underway and is designed to accelerate expansion of the CRD massive sulfide resource along strike, representing approximately twice the surface core drilling completed to date at South Mountain. The program will also test compelling magnetotelluric (MT) and induced polarization (IP) geophysical anomalies that are spatially associated with the known resource and supported by surface geological mapping, highlighting a strong opportunity to expand the mineralized footprint and advance the knowledge across the Project.

Testing New MT and Geological Targets - In 2025, the Company began an ambitious district-wide exploration program aimed at identifying the potential source or sources of the polymetallic massive sulfide mineralization and additional mineralized zones within the Laxey Marble. Integrated modeling of MT and surface geological data outlined several highly prospective anomalies (see Figure 1) including anomalies below the Gold Breccia target, further supported by historic IP data and more recent pulse electromagnetic (PEM) and ground magnetic surveys. Further geophysical work, including airborne magnetics and additional MT surveys, is planned later in the season. These programs are expected to sharpen target definition and could support additional step-out drilling across the district, providing the Company with multiple opportunities to build exploration momentum.

Gold Breccia Target - In 2009, the Company identified a new discovery in the Gold Breccia (See figure 1) which documented a gold-bearing heterolithic breccia of about 1,000 meters in strike length by 800 meters wide (Figure 1). In 2010, reverse circulation drilling returned results including 84 meters grading 0.221 g/t Au and 81 meters grading 0.289 g/t Au (see press release dated September 1, 2010, and October 4, 2010).

Eric Jones, President and CEO of Thunder Mountain Gold Inc. commented, "We are excited to launch this season's drill program with a proven, high-quality contractor in Big Sky Exploration. Their strong reputation for safe, productive core drilling gives us added confidence as we advance South Mountain. We believe this program has the potential to enhance our resource base, improve our understanding of the broader district, and generate meaningful value catalysts for our shareholders."

Big Sky Exploration, based in Eureka, Nevada, has mobilized a Boart Longyear LF™90D heavy-duty track-mounted surface coring drill rig with telescoping dump mast, providing the capability and flexibility to operate efficiently and safely across varying site conditions (Figure 2). The LF 90 has a depth capacity of up to 3,000 feet (~1,000 meters), positioning the Company to test both resource expansion opportunities and deeper district-scale targets with H-size core drilling from surface.

The South Mountain Mine

The South Mountain Mine is a polymetallic development project containing high-grade zinc, silver, gold, and copper (see Table 1), located on private land approximately 70 miles southwest of Boise, Idaho. Historic mining at South Mountain began in the 1860s. Modern mining was done as part of the World War II effort and operated intermittently from the late 1940s through the late 1960s, most notably by Anaconda Copper, and includes more than 8,000 feet of drifts, shafts, raises and stopes. The Company acquired the mine in 2007 and rehabilitated approximately 4,000 feet of underground workings that is MSHA compliant. Underground core drilling along newly developed drift blocked out significant massive sulfide ore associated with the ore chutes. This combination of historic production, established underground access, and attractive metal exposure gives South Mountain a strong foundation as an emerging U.S. critical and precious metals project.

Thunder Mountain Gold has advanced the project since 2007 and invested approximately US$25 million to date. Historic test mining and processing focused primarily on high-grade Carbonate Replacement Deposit (CRD) zones that remain open at depth and along strike. Thunder Mountain's exploration and development drilling at South Mountain has defined a broad silver, zinc, copper and gold footprint with compelling district-scale potential, supporting the Company's ongoing strategy to consolidate and expand its land position. The Company recently announced the purchase of 113 acres of private land contiguous with the main historic mine area. This acquisition includes strategic exploration ground associated with the Gold Breccia target and supports continued advancement of the South Mountain Project. In addition, the Company has staked 423 mineral lode claims on adjoining BLM lands totaling approximately 8,200 acres and secured a lease on an additional 1,073 acres of private land in and around the project area. Including the State of Idaho lease, these transactions have expanded the Company's property position by a total of 13,061 acres, or roughly twenty square miles, significantly enhancing the scale of the exploration opportunity.

According to historical smelter records, approximately 53,642 tons of mineralized material were mined and direct shipped to the smelter at average realized grades of 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 (see S-K 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 information is available on the Company's website and at www.SEC.gov and www.sedarplus.ca.

Table 1. South Mountain mineral resource estimate.

		Silver		Gold		Zinc	Copper	Lead
Classification	tons	ounces/ ton	ounces (x 1,000)	ounces/ ton	ounces	%	%	%
Measured	69,000	3.84	264	0.058	4,000	9.18	0.6	0.67
Indicated	154,000	4.47	688	0.06	9,300	8.95	0.66	1.06
Measured + Indicated	223,000	4.27	953	0.059	13,300	9.02	0.64	0.94
Inferred	959,000	5.67	5,438	0.037	35,200	7.56	0.80	1.06

Refer to S-K 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.

Figure 1: South Mountain Mine area with Laxey Marble, CRD massive sulfide resource area, Gold Breccia, and planned drill holes.

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/8664/302337_figure1.jpg

Figure 2: Priority MT anomalies, Laxey Marble and proposed drill holes.

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/8664/302337_figure2.jpg

Technical Data in this Release

Regarding Thunder Mountain Gold, Inc.

Thunder Mountain Gold Inc., founded in 1935, is a junior exploration company focused on advancing base and precious metals assets in the western United States. The Company's principal asset is the South Mountain Mine, a historic former Anaconda Copper Company 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 asset in Nevada adjacent to and surrounded by Nevada Gold Mines, a Barrick-Newmont joint venture. With a growing land position, established project infrastructure, and exposure to both critical and precious metals, Thunder Mountain Gold offers investors leverage to exploration success in premier U.S. mining jurisdictions. For more information, please visit the Company's website at www.Thundermountaingold.com, and at www.SEC.gov and www.sedarplus.ca.

Cautionary Note to Investors

This news release is intended for release in the United States only. Neither the TSX Venture Exchange, the OTCQB, nor either of 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
Eric@thundermountaingold.com
Office: (208) 658-1037

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/302337

Thunder Mountain Gold Announces Change of Independent Registered Public Accounting Firm

Tue, 09 Jun 2026 11:13:00 -0400

Boise, Idaho--(Newsfile Corp. - June 9, 2026) - Thunder Mountain Gold, Inc. (OTCQB: THMG) (TSXV: THM) ("Thunder Mountain Gold" or the "Company") announced today Assure CPA, LLC ("Assure"), the Company`s long time Independent Registered Public Accounting Firm, has been acquired by Sadler, Gibb & Associates, LLC ("Sadler Gibb"). Consequently, Assure will be resigning its role as the Company`s Independent Registered Public Accounting Firm. This resignation follows the sale of substantially all of Assure's assets to Sadler, Gibb & Associates, LLC ("Sadler Gibb").

As part of the transaction, Assure has ceased its operations as a public accounting firm, and the professionals who have served the Company are continuing in their roles at Sadler Gibb. The Company has filed a Current Report on Form 8-K under Item 4.01 (Changes in Registrant's Certifying Accountant). Additionally, the Company has filed all related documents on SEDAR+ in Canada, along with the issuance of this news release announcing the change in compliance with TSX-V regulations.

About Sadler Gibb and Associates, LLC

Sadler Gibb is a Utah-headquartered, PCAOB-registered public accounting firm with offices in Salt Lake City and Draper. The firm was founded approximately 17 years ago by partners Big Four, Global, and regional practices and wanted to combine that level of technical depth with the responsiveness and senior-partner access of a boutique firm. The firm now serves more than 500 clients across tax, assurance, advisory, and financial services, with particular strength in SEC reporting, M&A , and complex technical accounting. Memberships include the PCAOB, AICPA, UACPA, and CPAB. Core competencies. PCAOB-registered audits of public companies; SEC filings, S-1 registrations and NASDAQ up-listings; complex technical accounting (revenue recognition, stock-based compensation, convertible debt and embedded derivatives, business combinations, goodwill and asset impairment, variable interest entities); M&A and transaction advisory; federal and multi-state tax compliance; IRS problem resolution; advisory and CFO-level services.

Regarding Thunder Mountain Gold, Inc.

Thunder Mountain Gold Inc., founded in 1935, is a junior exploration company with interests in base and precious metals projects in the western United States. It had its start in the Thunder Mountain Mining District in central Idaho. Today, its principal asset is the South Mountain Mine, a historic former Anaconda Copper Company development of zinc, silver, gold, lead, and copper located on private land in Owyhee County, Idaho. The Company also owns 100% of the Trout Creek Project, a gold exploration project in Nevada adjacent to and surrounded by Nevada Gold Mines, a Barrick-Newmont joint venture. For more information, please visit the Company's website at www.Thundermountaingold.com, and at www.SEC.gov and www.sedarplus.ca.

Cautionary Note to Investors

For further information, please contact:

Thunder Mountain Gold, Inc.
Eric T. Jones
President and Chief Executive Officer
Eric@thundermountaingold.com
Office: (208) 658-1037

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/300753

Thunder Mountain Gold Significantly Increases Land Position at The South Mountain Property

Mon, 01 Jun 2026 09:02:00 -0400

Boise, Idaho--(Newsfile Corp. - June 1, 2026) - Thunder Mountain Gold, Inc. (OTCQB: THMG) (TSXV: THM) ("Thunder Mountain Gold" or the "Company") is pleased to announce that it has secured a 20-year mineral lease ("Lease") with the Idaho Department of Lands ("IDL" or the "Lessor"), through its wholly owned subsidiary, South Mountain Mines Inc., covering approximately 3,675 acres of state-owned land adjacent to the Company's South Mountain Mines Property in Owyhee County, Idaho. The Lease expands the Company's district-wide land position at South Mountain and supports continued exploration, development, and potential mining across a highly prospective area.

The Lease has an initial 20-year term, commencing March 1, 2026, and expiring February 28, 2046, with extension rights subject to Idaho law and agreement with the Lessor. The Lease and associated commitments underscore the Company's long-term investment in the project and its contribution to Idaho's critical minerals development. The mineral Lease was approved by the Idaho State Land Board and signed by Governor Brad Little on May 20, 2026.

Eric T. Jones, President and CEO of Thunder Mountain Gold, commented: "This Lease significantly strengthens our South Mountain land position and advances our district-wide exploration strategy. With this expanded footprint, we are better positioned to evaluate the broader mineral potential of the South Mountain Complex and pursue opportunities to enhance long-term project value. We appreciate the State of Idaho's constructive support for responsible resource development."

Thunder Mountain Gold has continuously advanced the South Mountain Mine and surrounding district since 2007. While work through 2024 focused primarily on the underground silver-rich polymetallic resource, the broader surrounding area remained comparatively underexplored. The Company's 2025 exploration work consisting of geophysical surveys, field mapping and sampling has identified encouraging porphyry potential across the broader project area. Follow-up mapping and geophysical work have highlighted multiple trends within the newly consolidated land package, and the Company plans additional geophysical programs to further assess these high-priority targets.

About the Idaho Department of Lands

The Idaho Department of Lands manages over 3.4 million acres of state endowment trust land, with a mandate to maximize revenue for the benefit of public schools and other institutions. Mineral leasing is a key component of this mission, contributing to Idaho's economic development and educational funding.

Additional Land Acquisition

The Company has also purchased 113 acres of private land contiguous with the main mine area. This acquisition includes strategic exploration ground associated with the Gold Breccia target and supports continued advancement of the South Mountain project. In addition, the Company has recently located 423 mineral lode claims on adjoining BLM lands totaling approximately 8,200 acres and secured a lease on an additional 1,073 acres of private land in and around the project area.

With the State of Idaho lease, the above land acquisition and new mining claims, the property position has increased by a total of 13,061 acres or about twenty (20) square miles.

Commitment to Responsible Stewardship

Throughout its 90-year history, the Company has maintained a strong commitment to responsible environmental stewardship across its land holdings in Idaho. In 2005, the Company sold the Thunder Mountain Mine in Valley County, Idaho, to the U.S. Forest Service and donated thousands of acres for conservation through Trust for Public Land, a national nonprofit organization dedicated to expanding access to the outdoors.

The Company remains committed to complying with all regulatory requirements and implementing best practices to ensure environmental stewardship and community engagement through each step in the project.

The South Mountain Project

The South Mountain Mine is a polymetallic development project containing high-grade zinc, silver, gold, and copper, located on private land approximately 70 miles southwest of Boise, Idaho. The project was intermittently mined from the late 1940s through the late 1960s, most notably by Anaconda Copper, and includes more than 4,000 feet of rehabilitated underground development that is MSHA compliant. Thunder Mountain Gold has advanced the project since 2007 and invested approximately US$25 million to date. Historic test mining and processing focused primarily on high-grade Carbonate Replacement Deposit (CRD) and skarn zones that remain open at depth and along strike. According to historical smelter records, approximately 53,642 tons of mineralized material were mined and direct shipped to the smelter at average realized grades of 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 (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 information is available on the Company's 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 Steven A. Osterberg, Ph.D., P.G., Q.P. consulting geologist, and a "Qualified Person" as defined by the U.S. SK-1300 regulations & National Instrument 43-101 (Canada) standards.

Regarding Thunder Mountain Gold, Inc.

Thunder Mountain Gold Inc., founded in 1935, is a junior exploration company with interests in base and precious metals projects in the western United States. It had its start in the Thunder Mountain Mining District in central Idaho; in 2005 the Company sold its patented and unpatented mining claims and interest to the Trust for Public Lands and the US Forest Service. Today, its principal asset is the South Mountain Mine, a historic former Anaconda Copper Company development of zinc, silver, gold, lead, and copper located on private land in Owyhee County, Idaho. The Company also owns 100% of the Trout Creek Project, a gold exploration project in Nevada adjacent to and surrounded by Nevada Gold Mines, a Barrick-Newmont joint venture. For more information, please visit the Company's website at www.Thundermountaingold.com.

Cautionary Note to Investors

For further information, please contact:

Thunder Mountain Gold, Inc.
Eric T. Jones
President and Chief Executive Officer
Eric@thundermountaingold.com
Office: (208) 658-1037

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/299580

Thunder Mountain Gold Announces Bylaw Amendment and AGM Voting Results

Thu, 05 Feb 2026 16:56:00 -0500

Boise, Idaho--(Newsfile Corp. - February 5, 2026) - Thunder Mountain Gold, Inc. (OTCQB: THMG) (TSXV: THM) ("Thunder Mountain Gold" or the "Company").

The Board of Directors (the "Board") of the Company approved an amendment to the Company's Bylaws (the "Bylaws"), effective prior to the Company's annual meeting of shareholders held on January 28, 2026 (the "Annual Meeting"). The sole purpose of the amendment was to amend the quorum requirements of the meetings of shareholders, from a majority of the outstanding shares of the Company entitled to vote, to one-third (1/3) of the outstanding shares of the Company entitled to vote, represented in person or by proxy.

The Annual Meeting was held on January 28, 2026, pursuant to a definitive notice and proxy statement filed with the SEC on December 23, 2025. The Company's shareholders approved the election of all directors, and the appointment of Assure CPA, LLC as the Company's auditor for the ensuing fiscal year. The directors elected to serve on the Board for the ensuing year are Eric T. Jones, Ralph Noyes, Doug Glaspev, and James Sabala.

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 Copper Company 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.

Cautionary Note to Investors

For further information, please contact:

Thunder Mountain Gold, Inc.
Eric T. Jones
President and Chief Executive Officer
Eric@thundermountaingold.com
Office: (208) 658-1037

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/282931

Thunder Mountain Gold Announces Market Making Services Agreement

Mon, 29 Dec 2025 13:54:00 -0500

Boise, Idaho--(Newsfile Corp. - December 29, 2025) - Thunder Mountain Gold, Inc. (OTCQB: THMG) (TSXV: THM) ("Thunder Mountain Gold" or the "Company") reports that it has entered into a market making services agreement (the "Agreement") with Independent Trading Group (ITG), Inc. ("ITG") effective as of April 1, 2025. ITG is a Toronto based independent dealer member registered with the Canadian Investment Regulatory Organization. Under the Agreement, ITG will provide market making services on behalf of the Company during the term of the Agreement. ITG will carry out the market making services by appointing an approved trader within ITG who has sufficient experience to effectively perform and manage the market making activities. In consideration for providing the market making services, the Company will pay to ITG a monthly fee of CDN$6,000 per month during the term of the Agreement. ITG does not own, directly or indirectly, any interest in or common shares of the Company or have right, directly or indirectly, to acquire any interest in or common shares of the Company. The Company will pay the monthly market making fee to ITG from its available cash and working capital resources. The initial term of the Agreement is a term of one month, subject to automatic renewal for additional terms of one month each and subject to the right of each of the Company and ITG to terminate on 30 days prior notice to the other. The Company will be evaluating the duration of this Agreement in early 2026.

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 Copper Company 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.

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. Investors should refer to THMG's Form 10-K, Form 10-Q reports, for a more detailed discussion of risks that may impact future results. 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

For further information, please contact:

Thunder Mountain Gold, Inc.

Eric T. Jones
President and Chief Executive Officer
Eric@thundermountaingold.com
Office: (208) 658-1037

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/279149

MFD Investment Holdings SA Enters the Options Review Phase for Near-Term Production with Ocean Partners at Thunder Mountain Gold`s South Mountain Mine

Mon, 08 Dec 2025 08:00:00 -0500

Scope includes initial toll-milling solutions and ore concentrate production; planning, metallurgical test work, and scoping-level commercial evaluation to commence - targeting potential commencement in 2026

Vancouver, British Columbia and Boise, Idaho--(Newsfile Corp. - December 8, 2025) - Thunder Mountain Gold, Inc. (TSXV: THM) (OTCQB: THMG) (the "Company" or "Thunder Mountain") announces that MFD Investment Holdings SA ("MFD") has entered the options review phase with Ocean Partners USA, Inc. ("Ocean Partners"), a trader specializing in base and precious metals ores and concentrates to evaluate near-term production pathways, including toll milling, direct shipping ore and concentrate production at the Company`s South Mountain Mine. This work will be undertaken under the small-scale mining initiative between Thunder Mountain Gold Inc. and MFD Investment Holdings SA ("MFD") and coordinated by MFD (see news release dated September 8, 2025). The program is targeting potential commencement of operations in 2026, subject to metallurgical outcomes, commercial terms, permitting, and internal approvals. No production decision has been made.

"Engaging Ocean Partners at this stage allows MFD and Thunder Mountain Gold to evaluate pathways for near-term production-from metallurgical compatibility to commercial terms," commented Eric T. Jones, President & CEO of Thunder Mountain Gold. "The objective in this options review phase is to assemble decision-quality data on toll milling and ore concentrate production so we can select the most executable and economic route forward."

Options Review Phase - Workstreams

Metallurgical test work: Sample selection and testing to evaluate recoveries across all metals, product specifications, and compatibility with toll processing.
Processing pathways: Reviewing toll-milling and direct shipping/sales options with Ocean Partners and qualified processors, including production throughput and campaign scheduling.
Production scenarios: Evaluation of concentrates versus direct ship, or toll milling and blending scenarios for the silver, zinc, gold and copper recovery.
Sequencing and Services: Assessment of production sequencing and possibilities for third-party services in execution of the preferred pathway.
Production approaches for targeted areas, required services, and operational sequencing.
Commercial/Economic Evaluation: Scoping-level cash-flow and sensitivity work incorporating processing, transport, and indicative commercial terms.
Logistics & Compliance: High-level review of haulage, permitting interfaces, and product marketing considerations.

Thunder Mountain Gold will provide further updates as the options review phase advances and key milestones are reached.

About Ocean Partners

Ocean Partners is an international metals company focused on the marketing and trading, of base- and precious-metal ores and concentrates and facilitates toll-processing solutions with third-party receivers. The company works with producers to structure commercial pathways for ore, concentrates and related products across the project life cycle.

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. 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, 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

Forward-Looking Statements

Cautionary Note to Investors

For further information, please contact:

Thunder Mountain Gold, Inc.
Eric T. Jones
President and Chief Executive Officer
eric@thundermountaingold.com
Office: (208) 658-1037

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/277214

Thunder Mountain Gold Closes US$2.5 Million Private Placement

Mon, 27 Oct 2025 09:55:00 -0400

Proceeds to Advance South Mountain and Corporate Growth Plans

Vancouver, British Columbia and Boise, Idaho--(Newsfile Corp. - October 27, 2025) - Thunder Mountain Gold, Inc. (TSXV: THM) (OTCQB: THMG) (the "Company" or "Thunder Mountain") announces it has closed its previously announced non-brokered private placement (the "Private Placement") for aggregate gross proceeds of US$2,500,000.

Investor highlights

Fully funded near-term work program: Proceeds are earmarked to advance South Mountain technical work (drilling, metallurgy, resource and mine planning studies) and for general working capital.
Simple, aligned structure: 10,000,000 units at US$0.25 per unit; each unit includes one common share and one-half common share purchase warrant. Each whole warrant is exercisable at US$0.40 until October 24, 2027.
Use of Proceeds: Funding supports a sequence of near-term technical and corporate milestones intended to advance the South Mountain Project, reduce project risk and advance step-out exploration.

CEO comment

Eric T. Jones, President & CEO, said, " This financing provides the capital needed to advance South Mountain. We appreciate the strong support from our investors, which underscores their confidence in our strategy, assets, management team, and long-term vision."

Financing details

Under the Private Placement, the Company issued 10,000,000 units (each, a "Unit") at a price of US$0.25 per Unit for gross proceeds of US$2,500,000. Each Unit consists of one common share of the Company (a "Common Share") and one-half of one common share purchase warrant (each whole warrant, a "Warrant"). Each Warrant entitles the holder to purchase one additional Common Share at a price of US$0.40 until October 24, 2027.

All securities issued pursuant to the Private Placement are subject to a statutory four-month hold period expiring February 24, 2026, in accordance with applicable Canadian securities laws and the policies of the TSX Venture Exchange.

The Private Placement was conducted pursuant to exemptions from prospectus and registration requirements of applicable securities laws and was made to accredited investors on a private placement basis. The securities offered have not been 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 within the United States or to "U.S. persons" (as defined in Regulation S under the U.S. Securities Act) absent registration or an applicable exemption from such registration requirements.

Final acceptance of the Private Placement remains subject to the TSX Venture Exchange.

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.sedar.com).

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

Cautionary Note to Investors

For further information, please contact:

Thunder Mountain Gold, Inc.
Eric T. Jones
President and Chief Executive Officer
eric@thundermountaingold.com
Office: (208) 658-1037

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/272034

Thunder Mountain Gold Inc. Announces Board Appointment

Fri, 03 Oct 2025 12:13:00 -0400

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.

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

Cautionary Note to Investors

For further information, please contact:

Thunder Mountain Gold, Inc.
Eric T. Jones
President and Chief Executive Officer
eric@thundermountaingold.com
Office: (208) 658-1037

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/269043