THMG 10-Q Quarterly Report Sept. 30, 2025 | Alphaminr
THUNDER MOUNTAIN GOLD INC

THMG 10-Q Quarter ended Sept. 30, 2025

THUNDER MOUNTAIN GOLD INC
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Thunder Mountain Gold, Inc.: Form 10-Q - Filed by newsfilecorp.com
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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2025

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from __________ to  __________

Commission File Number: 001-08429

form10qx001.jpg

THUNDER MOUNTAIN GOLD, INC.

(Exact name of Registrant as specified in its charter)

Nevada 91-1031015
(State or other jurisdiction of incorporation  or  organization) (IRS identification No.)
11770 W President Dr. STE F
Boise , Idaho 83713-8986
(Address of Principal Executive Offices) (Zip Code)
( 208 ) 658-1037
(Registrant's Telephone Number, including Area Code)

Securities registered pursuant to Section 12(g) of the Act:

Title of Each Class Trading Symbol(s) Name of Each Exchange on Which Registered
Common Stock, $0.001 par value THMG
THM
OTCQB
TSX-V

(Former name, former address and former fiscal year, if changed since last report)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  ☒ Yes ☐  No


Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  ☒ Yes ☐  No


Indicate by check mark whether the Registrant is  ☐  a large accelerated filer, ☐  an accelerated file, ☒  a non-accelerated filer , a smaller reporting company (as defined in Rule 12b-2 of the Exchange Act) or an emerging growth company


Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act)

☐  Yes No

Number of shares of issuer's common stock outstanding at October 21, 2025: 93,255,579

1


PART I - FINANCIAL INFORMATION

Item 1 - Financial Statements

Thunder Mountain Gold, Inc.

Condensed Consolidated Balance Sheets (Unaudited)

September 30, 2025 and December 31, 2024

September 30,
2025
December 31,
2024
ASSETS
Current assets:
Cash and cash equivalents $ 1,665,987 $ 481,322
Subscription receivable - 130,000
Prepaid expenses and other assets 40,575 35,902
Total current assets 1,706,562 647,224
Property and equipment, net (Note 4) 332,509 332,509
Right to use asset (Note 8) - 1,725
Total assets $ 2,039,071 $ 981,458
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Accounts payable and other accrued liabilities $ 79,109 $ 65,604
Accrued legal fees 131,685 136,685
Operating lease liability (Note 8) - 1,771
Deferred compensation (Note 5) 1,104,625 1,104,625
Total current liabilities 1,315,419 1,308,685
Accrued reclamation costs 81,250 81,250
Total liabilities 1,396,669 1,389,935
Commitments and Contingencies (Notes 2 and 3)
Stockholders' equity:
Preferred stock; $ 0.0001 par value, 5,000,000 shares authorized; no shares issued or outstanding - -
Common stock; $ 0.001 par value; 200,000,000 shares authorized, 83,255,579 and 73,255,579 shares issued and outstanding, respectively (See Note 6) 83,256 73,256
Additional paid-in capital 9,133,592 7,172,547
Shares to be issued (Note 9) 1,000,000 -
Less: 11,700 shares of treasury stock, at cost ( 24,200 ) ( 24,200 )
Accumulated deficit ( 9,719,885 ) ( 7,799,719 )
Total Thunder Mountain Gold, Inc stockholders' equity 472,763 ( 578,116 )
Noncontrolling interest in Owyhee Gold Trust (Note 3) 169,639 169,639
Total stockholders' equity 642,402 ( 408,477 )
Total liabilities and stockholders' equity $ 2,039,071 $ 981,458

The accompanying notes are an integral part of these condensed consolidated financial statements.

3


Thunder Mountain Gold, Inc.

Condensed Consolidated Statements of Operations (Unaudited)

Three Months Ended Nine Months Ended
September 30, September 30,
2025 2024 2025 2024
Operating expenses:
Exploration $ 290,661 $ 40,164 $ 636,623 $ 82,524
Legal and accounting 83,467 13,861 158,719 71,596
Management and administrative 108,082 61,201 1,127,577 238,572
Total operating expenses 482,210 115,226 1,922,919 392,692
Net operating loss ( 482,210 ) ( 115,226 ) ( 1,922,919 ) ( 392,692 )
Other income (expense):
Loss on sale of investment - - - ( 42,855 )
Other income 1,459 595 2,753 1,713
Total other income (expense) 1,459 595 2,753 ( 41,142 )
Net loss ( 480,751 ) ( 114,631 ) ( 1,920,166 ) ( 433,834 )
Net loss - noncontrolling interest in Owyhee Gold Trust - - - -
Net loss - Thunder Mountain Gold, Inc. $ ( 480,751 ) $ ( 114,631 ) $ ( 1,920,166 ) $ ( 433,834 )
Net loss per common share - basic and diluted $ ( 0.01 ) $ Nil $ ( 0.02 ) $ ( 0.01 )
Weighted average common shares outstanding-basic and diluted. 83,255,579 60,855,579 78,453,992 60,855,579

The accompanying notes are an integral part of these condensed consolidated financial statements.

4


Thunder Mountain Gold, Inc.
Condensed Consolidated Statements of Cash Flows (Unaudited)

Nine Months Ended
September 30,
2025 2024
Cash flows from operating activities:
Net loss $ ( 1,920,166 ) $ ( 433,834 )
Adjustments to reconcile net loss to net cash used by operating activities:
Stock based compensation 771,045 -
Noncash lease expense ( 46 ) ( 328 )
Loss on sale of investment - 42,855
Change in:
Prepaid expenses and other assets ( 4,673 ) ( 20,921 )
Accounts payable and other accrued liabilities 13,505 ( 1,870 )
Accrued legal fees ( 5,000 ) -
Net cash used by operating activities ( 1,145,335 ) ( 414,098 )
Cash flows from investing activities:
Proceeds from sale of investments, net - 384,981
Net cash provided by investing activities - 384,981
Cash flows from financing activities:
Proceeds from issuances of stock and warrants 1,200,000 -
Proceeds from shares to be issued 1,000,000 -
Proceeds received on subscription receivable 130,000 -
Net cash provided by financing activities 2,330,000 -
Net increase (decrease) in cash and cash equivalents 1,184,665 ( 29,117 )
Cash and cash equivalents, beginning of period 481,322 170,628
Cash and cash equivalents, end of period $ 1,665,987 $ 141,511

The accompanying notes are an integral part of these condensed consolidated financial statements.

5


Thunder Mountain Gold, Inc.

Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited)

For the three-month and nine-month periods ended September 30, 2025 and September 30, 2024

Common
Stock
Shares
Common
Stock
Amount
Additional
Paid-In
Capital


Shares to be
Issued
Treasury
Stock
Accumulated
Deficit
Non-
Controlling
Interest in
OGT
Total
Balances at July 1, 2024 60,855,579 $ 60,856 $ 6,564,947 $ 0 $ ( 24,200 ) $ ( 7,487,811 ) $ 169,639 $ ( 716,569 )
Net loss - - - - - ( 114,631 ) - ( 114,631 )
Balances at September 30, 2024 60,855,579 $ 60,856 $ 6,564,947 $ 0 $ ( 24,200 ) $ ( 7,602,442 ) $ 169,639 $ ( 831,200 )
Balances at July 1, 2025 83,255,579 $ 83,256 $ 9,133,592 $ 0 $ ( 24,200 ) $ ( 9,239,134 ) $ 169,639 $ 123,153
Shares to be Issued - - - 1,000,000 - - - 1,000,000
Net loss - - - - ( 480,751 ) - ( 480,751 )
Balances at September 30, 2025 83,255,579 $ 83,256 $ 9,133,592 $ 1,000,000 $ ( 24,200 ) $ ( 9,719,885 ) $ 169,639 $ 642,402
Balances at January 1, 2024 60,855,579 $ 60,856 $ 6,564,947 $ 0 $ ( 24,200 ) $ ( 7,168,608 ) $ 169,639 $ ( 397,366 )
Net loss - - - - - ( 433,834 ) - ( 433,834 )
Balances at September 30, 2024 60,855,579 $ 60,856 $ 6,564,947 $ 0 $ ( 24,200 ) $ ( 7,602,442 ) $ 169,639 $ ( 831,200 )
Balances at January 1, 2025 73,255,579 $ 73,256 $ 7,172,547 $ 0 $ ( 24,200 ) $ ( 7,799,719 ) $ 169,639 $ ( 408,477 )
Issuance of stock and warrants 10,000,000 10,000 1,190,000 - - - - 1,200,000
Shares to be issued 1,000,000 1,000,000
Stock based compensation - - 771,045 - - - - 771,045
Net loss - - - - - ( 1,920,166 ) - ( 1,920,166 )
Balances at September 30, 2025 83,255,579 $ 83,256 $ 9,133,592 $ 1,000,000 $ ( 24,200 ) $ ( 9,719,885 ) $ 169,639 $ 642,402

The accompanying notes are an integral part of these condensed consolidated financial statements.

6


1. Summary of Significant Accounting Policies and Business Operations

The interim condensed consolidated financial statements of Thunder Mountain Gold, Inc. and its subsidiaries (collectively, "Thunder Mountain", "THMG", or "the Company") are unaudited. In the opinion of management, all adjustments, consisting of only normal recurring adjustments, and disclosures necessary for the fair statement of these interim statements have been included. The results reported in these interim statements may not be indicative of the results which will be reported for the year ending December 31, 2025. The condensed consolidated December 31, 2024 balance sheet data was derived from audited consolidated financial statements. Accordingly, these unaudited interim condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements included in the Company's Annual Report on Form 10-K/A for the year ended December 31, 2024.

Business Operations

Thunder Mountain Gold, Inc. ("Thunder Mountain", "THMG", or "the Company") was originally incorporated under the laws of the State of Idaho on November 9, 1935, under the name of Montgomery Mines, Inc.  In April 1978, the Montgomery Mines Corporation was obtained by a group of the Thunder Mountain property holders and changed its name to Thunder Mountain Gold, Inc., with the primary goal to further develop their holdings in the Thunder Mountain Mining District, located in Valley County, Idaho. Thunder Mountain Gold, Inc. takes its name from the Thunder Mountain Mining District, where its principal lode mining claims were located. For several years, the Company's activities were restricted to maintaining its property position and exploration activities. During 2005, the Company sold its holdings in the Thunder Mountain Mining District. During 2007, the Company acquired the South Mountain Mines property in southwest Idaho and initiated exploration activities on that property, which continue today.

Basis of Presentation and Going Concern

The accompanying consolidated financial statements have been prepared under the assumption that the Company will continue as a going concern. The Company has historically incurred losses, however, the Company has cash reserves sufficient to cover normal operating expenses for the following 12 months. If necessary, the Company continues to have the ability to raise additional capital in order to fund its future exploration and working capital requirements.

Principles of Consolidation

The condensed consolidated financial statements include the accounts of the Company; its wholly owned subsidiaries, Thunder Mountain Resources, Inc. ("TMRI") and South Mountain Mines, Inc. ("SMMI"); and a company in which the Company owns 75 % and has majority control, Owyhee Gold Trust, LLC ("OGT").    The Company's consolidated financial statements reflect the other investor's 25 % noncontrolling, capped interest in OGT.  Intercompany accounts are eliminated in consolidation.

Accounting Estimates

The preparation of the condensed consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The more significant areas requiring the use of management estimates and assumptions include the carrying value of properties and mineral interests, environmental remediation liabilities, deferred tax assets, and stock-based compensation. Management's estimates and assumptions are based on historical experience and other assumptions believed to be reasonable under the circumstances. Actual results could differ from those estimates.

7


Income Taxes

The Company recognizes deferred income tax liabilities or assets at the end of each period using the tax rate expected to be in effect when the taxes are actually paid or recovered. A valuation allowance is recognized on deferred tax assets when it is more likely than not that some or all of the deferred tax assets will not be realized.

Cash and Cash Equivalents

For the purposes of the balance sheet and statement of cash flows, the Company considers all highly liquid investments with a maturity of three months or less when purchased to be a cash equivalent. At certain times, cash amounts may exceed federal deposit insurance limits.

Fair Value Measurements

When required to measure assets or liabilities at fair value, the Company uses a fair value hierarchy based on the level of independent, objective evidence surrounding the inputs used.  The Company determines the level within the fair value hierarchy in which the fair value measurements in their entirety fall.  The categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement.  Level 1 uses quoted prices in active markets for identical assets or liabilities, Level 2 uses significant other observable inputs, and Level 3 uses significant unobservable inputs.  The amount of the total gains or losses for the period are included in earnings that are attributable to the change in unrealized gains or losses relating to those assets and liabilities still held at the reporting date. The Company has no financial liabilities that are adjusted to fair value on a recurring basis.

Financial Instruments

The Company's financial instruments include cash and cash equivalents.

Investments

The Company determines the appropriate classification of investments at the time of acquisition and re-evaluates such determinations at each reporting date. Equity securities that have a readily determined fair value are carried at fair value determined using Level 1 fair value measurement inputs with the change in fair value recognized as unrealized gain (loss) in the condensed consolidated statement of operations each reporting period. Gains and losses on the sale of securities are recognized on a specific identification basis.

Mineral Interests

The Company capitalizes costs for acquiring mineral interests, and expenses costs to maintain mineral rights and leases as incurred.  Exploration costs are expensed in the period in which they are incurred.  Should a property reach the production stage, these capitalized costs would be amortized using the units-of-production method based on periodic estimates of ore reserves. Mineral interests are periodically assessed for impairment of value and any subsequent losses are charged to operations at the time of impairment.

If a mineral interest is abandoned or sold, its capitalized costs are charged to operations.  Consideration received by the Company pursuant to joint ventures or purchase option agreements is applied against the carrying value of the related mineral interest.  When and if payments received exceed the carrying value, the excess amount is recognized as a gain in the condensed consolidated statement of operations in the period the consideration is received.

Leases

Arrangements meeting the definition of a lease are classified as operating or financing leases and are recorded on the condensed consolidated balance sheet as both a right-of-use asset and lease liability, calculated by discounting fixed lease payments over the lease term at the rate implicit in the lease or the Company's incremental borrowing rate. Lease liabilities are increased by interest and reduced by payments each period, and the right-of-use asset is amortized over the lease term. For operating leases, interest on the lease liability and the amortization of the right-of-use asset result in straight-line rent expense over the lease term. For finance leases, interest on the lease liability and the amortization of the right-of-use asset results in front-loaded expense over the lease term. Variable lease expenses are recorded when incurred.

8


Investments in Joint Ventures

For companies and joint ventures (JVs) where the Company holds more than 50% of the voting interests, but less than 100%, and has significant influence, the company or joint venture is consolidated, and other investor interests are presented as noncontrolling. In determining whether significant influence exists, the Company considers its participation in policy-making decisions and its representation on the venture's management committee.

For JVs in which the Company does not have joint control or significant influence, the cost method is used. For those JVs in which there is joint control between the parties, the equity method is utilized whereby the Company's share of the ventures' earnings and losses is included in the statement of operations as earnings in JVs and its investments therein are adjusted by a similar amount. The Company periodically assesses its investments in JVs for impairment. If management determines that a decline in fair value is other than temporary it will write-down the investment and charge the impairment against operations.

Reclamation and Remediation

The Company's operations have been, and are subject to, standards for mine reclamation that have been established by various governmental agencies. The Company would record the fair value of an asset retirement obligation as a liability in the period in which the Company incurred a legal obligation for the retirement of tangible long-lived assets. A corresponding asset would also be recorded and depreciated over the life of the asset.

For non-operating properties, the Company accrues costs associated with environmental remediation obligations when it is probable that such costs will be incurred, and they are reasonably estimable. Such costs are based on management's estimate of amounts expected to be incurred when the remediation work is performed. The Company had accrued $ 81,250 at September 30, 2025 and December 31, 2024, respectively, on its condensed consolidated balance sheets relating to estimated mine closure and reclamation costs on its South Mountain Mines property.

Share-Based Compensation

Share-based payments to employees and directors, including grants of employee stock options, are measured at fair value and expensed in the condensed consolidated statements of operations over the vesting period.

Segment Policy

The Chief Executive Officer of Thunder Mountain Gold Inc. serves as the Company's Chief Operating Decision Maker ("CODM"). The Company operates as a single business segment, focused primarily on the exploration and development of the South Mountain Project.

As a single-segment entity, the Company complies with ASC 280-10-50-20, reporting segment profit or loss, significant expenses, and other segment items. Given our status as a mineral exploration company with no revenue, financial activities were minimal, primarily consisting of essential corporate expenditure and limited exploration.

Since our single segment represents the entire entity, certain financial information may be referenced in the primary financial statements instead of duplicated in segment disclosures.

Investments in Equity Securities

Investments in equity securities are generally measured at fair value. Unrealized gains and losses for equity securities resulting from changes in fair value are recognized in current earnings. If an equity security does not have a readily determinable fair value, we may elect to measure the security at its cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for an identical or similar investment in the same issuer. At the end of each reporting period, we reassess whether an equity investment security without a readily determinable fair value qualifies to be measured at cost, less impairment, consider whether impairment indicators exist to evaluate if an equity investment security is impaired and, if so, record an impairment loss. At the end of each reporting period, unrealized gains and losses resulting from changes in fair value are recognized in current earnings. Upon sale of an equity security, the realized gain or loss is recognized in current earnings.

9


Recent Accounting Pronouncements

Accounting Standards Updates

In December 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2023-09 Income Taxes (Topic 740): Improvements to Income Tax Disclosures . This update requires companies to report on an annual basis, specific categories in the rate reconciliation and additional information on reconciling items greater than 5% of the taxable income or loss. The update also requires disclosure of income taxes paid to Federal, state and foreign jurisdictions along with other municipal and local jurisdictions representing 5% or more of total income taxes paid. This update is effective for annual periods beginning after December 15, 2024, with early adoption permitted. The Company is currently evaluating the impact of adopting this standard on its consolidated financial statements.

In November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires disclosure about the types of costs and expenses included in certain expense captions presented on the income statement. The new disclosure requirements are effective for the Company's annual periods for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027, with early adoption permitted, and may be applied either prospectively or retrospectively. We are currently evaluating the ASU to determine its impact on our consolidated financial statements and disclosures.

Net Income (Loss) Per Share

The Company is required to have dual presentation of basic earnings per share ("EPS") and diluted EPS. The Company calculates basic earnings (loss) per share by dividing net income or loss available to common stockholders by the weighted average number of common shares outstanding during the applicable reporting period. Diluted earnings per share reflect potentially dilutive common stock equivalents, including options and warrants that could share in our earnings through the conversion to common shares, except where their inclusion would be anti-dilutive. For the quarters ended September 30, 2025 and 2024 outstanding common stock options of 7,160,000 and 3,450,000 , respectively were excluded from the calculation of diluted earnings per share as their effect would have been anti-dilutive due to the net loss for the period.

2. Mineral Interest Commitments

The Company holds three leases pertaining to land parcels adjacent to its South Mountain patented and unpatented mining claims. The details of these leases are as follows:

Acree Lease:

On June 20, 2008, the Company entered into a lease agreement with Ronald Acree for a six-year term, covering 113 acres at a lease rate of $ 20 per acre. The lease agreement includes an option to extend for an additional ten years at a revised rate of $ 30 per acre. Beginning on the 17th anniversary of the lease, the rate increases to $ 50 per acre, payable in the form of an advanced royalty, through the 30th anniversary. Thereafter, the lease rate will further increase to $ 75 per acre.

Effective June 2025, upon entering the 17th year of the lease term, the lease was extended an additional 10 years.  The annual lease payment increased to $ 5,650 , reflecting the rate adjustment to $ 50 per acre for the 113 -acre property.

Lowry Lease:

On October 24, 2008, the Company executed a lease agreement with William and Nita Lowry for a duration of 6 years, encompassing 376 acres at a rate of $ 20 per acre. Similar to the Acree Lease, the Lowry Lease incorporates an option to extend for an additional 10 years at a revised rate of $ 30 per acre. Following the passing of the original lessors, the lease was inherited by Michael Lowry, their son. The lease expires on October 24, 2025. The Company's management is in contact with Michael Lowry with the goal of completing a lease extension.

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Looten Lease:

On June 2, 2025, the Company executed a lease agreement with Kevin and Jo Looten for an initial term of 7 years, encompassing 18 acres at a rate of $ 30 per acre. Similar to the Acree Lease, the Looten Lease incorporates an option to extend for an additional 10 years at a revised rate of $ 40 per acre.

The leases have no work requirements. It is the current intention of the Company to engage in negotiations for new leases with the current landowners upon the expiration of the existing lease agreements. The negotiations may involve modifications to terms, rates, or other conditions as mutually agreed upon by the parties involved.

The Company has 26 unpatented claims ( 533 acres) in the Trout Creek area and 34 unpatented claims in the South Mountain area.

The Company incurred an increase in claims fees in the South Mountain area as compared to the prior quarter as a result of adding approximately over 200 BLM lode claims to their land position.

The claim fees are paid on these unpatented claims annually as follows:

Target Area 2025
Trout Creek -State of Nevada $ 5,200
Trout Creek -Lander County, Nevada 324
South Mountain-BLM 109,928
Total $ 115,452

3. South Mountain Project

SMMI Joint Venture - OGT, LLC

The Company's wholly owned subsidiary SMMI is the sole manager of the South Mountain Project in its entirety through a separate Mining Lease with Option to Purchase ("Lease Option") with the Company's majority-owned subsidiary OGT.  SMMI has an option to purchase the South Mountain mineral interest for a capped $ 5 million less net returns royalties paid through the date of exercise. The Lease Option expires in November 2026.  If SMMI exercises the option, the option payment of $ 5 million less advance royalties will be distributed 100 % by OGT to OGT's minority member, ISGCII.  Under the Lease Option, SMMI pays an advance of $ 5,000 net returns royalty to OGT annually.

Under the OGT operating agreement, SMMI and ISGC II have 75 % and 25 % ownership, respectively, in OGT. SMMI is the sole manager and pays all expenses for exploration and development of the property.  The Company has established 75 % ownership and full management of the property. OGT's financial information is included 100 % in the Company's condensed consolidated financial statements as of September 30, 2025 and December 31, 2024, and for the periods ended September 30, 2025 and 2024.

MFD Investment Holdings

On January 27, 2025, the Company announced a strategic partnership with Swiss-based MFD Investment Holdings SA ("MFD").  The letter agreement signed outlines that MFD will provide additional funding, contributing $ 1,000,000 in project-related expenditures as well as providing technical support for project development. This partnership adds additional financial strength in advancing South Mountain's technical and economic studies.  The letter agreement is in the form of an option, whereby THMG grants an option to MFD to earn an interest in its South Mountain Project pursuant to which MFD shall have the right, but not the obligation, to complete certain requirements in return for the acquisition of a 10 % interest in the Project.  As of September 30, 2025, THMG has received $ 154,498 from MFD for project-related reimbursements, recorded as a reduction to exploration expenses.

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4. Property and Equipment

The Company's property and equipment are as follows:

September 30,

2025

December 31,

2024

Vehicles $ 22,441 $ 22,441
Construction Equipment 30,407 30,407
Mining Equipment 42,696 42,696
95,544 95,544
Accumulated Depreciation ( 95,544 ) ( 95,544 )
- -
Land 332,509 332,509
Total Property and Equipment $ 332,509 $ 332,509

5. Related Party Transactions

Board of Directors Compensation

The Company paid its Board a total of $ 10,500 during the nine months ended September 30, 2025.

Deferred Compensation

As of September 30, 2025, and December 31, 2024, the balances of the total deferred compensation for the officers, are as follows, Eric Jones, President and Chief Executive Officer: $ 469,500 ; Jim Collord, Vice President and Chief Operating Officer: $ 420,000 ; Larry Thackery, former Chief Financial Officer: $ 215,125 . The total deferred compensation for these officers at September 30, 2025 and December 31, 2024 was $ 1,104,625 .

6. Stockholders' Equity

The Company's common stock has a par value of $ 0.001 with 200,000,000 shares authorized. The Company has 5,000,000 authorized shares of preferred stock with a par value of $ 0.0001 .  The Company also has 17,400,000 warrants outstanding as of September 30, 2025, with a weighted average exercise price of $ 0.12 and a weighted average life of 1.97 years.

On April 15, 2025, the Company`s Board approved a private placement financing of 10,000,000 units at a price of $ 0.12 per unit for total proceeds to the company of $ 1,200,000 .  Each unit includes one share of common stock and a warrant to purchase one-half share of common stock, exercisable for 2 years from the close of the offering at an exercise price of $ 0.18 . On May 25, 2025, the Company closed the private placement of 10,000,000 units for aggregate proceeds of $ 1,200,000 . No placement agent fees were paid during the offering.

7. Stock Options

The Company has a Stock Incentive Plan (the "SIP"), that authorizes the granting of stock options up to 10 percent of the total number of issued and outstanding shares of common stock, that provides for the grant of stock options, incentive stock options, stock appreciation rights, restricted stock awards, and incentive awards to eligible individuals including directors, executive officers and advisors that have furnished bona fide services to the Company not related to the sale of securities in a capital-raising transaction. On December 10, 2024, the Company's shareholders, at their Annual Meeting, ratified and reapproved the Stock Option Plan.

On June 18, 2025, the Company granted 2,295,000 stock options to certain officers and directors. The options are exercisable at $ 0.20 per share and expire on June 18, 2030. The options were fully vested upon grant. The fair value of the options was determined to be $ 445,230 using the Black-Scholes valuation model. As the options were fully vested at issuance, the entire fair value was recognized as share-based compensation expense during the nine months ended September 30, 2025. This expense was included in management and administrative expenses on the Company's Statement of Operations. The Company recognized $ 39,000 in compensation expense for share-based payment awards issued to non-employees as part of the total compensation expense recognized during the same period.

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On February 7, 2025, the Company issued 3,045,000 stock options to officers and directors of the Company. The options are exercisable on or before February 7, 2030, and have an exercise price of $ 0.10 . The fair value of the options was determined to be $ 325,815 using the Black Scholes model. The options were fully vested upon grant and the entire fair value was recognized as share-based compensation expense, included as part of management and administrative expenses on the Statement of Operations, for the nine months ended September 30, 2025. The Company recognized $ 10,700 in compensation expense for share-based payment awards issued to non-employees as part of the total compensation expense recognized during the same period .

The Company has elected to account for forfeitures of share-based payment awards as they occur. Accordingly, any previously recognized compensation expense related to non-employee share-based payment awards that are subsequently forfeited will be reversed in the period in which the forfeiture occurs.

The fair value of each option award was estimated on the date of the grant using the assumptions noted in the following table:

June 18, 2025 February 7, 2025
Stock price $ 0.20 $ 0.11
Exercise price $ 0.20 $ 0.10
Expected volatility 167.2 % 170.7 %
Expected dividends - -
Expected terms (in years) 5.0 5.0
Risk-free rate 3.98 % 4.33 %

On March 29, 2025, 1,630,000 options expired.

The following is a summary of the Company's options issued and outstanding under the SIP:

Shares

Weighted

Average

Exercise

Price

Outstanding and exercisable at December 31, 2023 4,775,000 $ 0.09
Expired ( 1,325,000 ) 0.09
Outstanding and exercisable at December 31, 2024 3,450,000 $ 0.09
Granted 5,340,000 0.14
Expired ( 1,630,000 ) 0.10
Outstanding and exercisable at September 30, 2025 7,160,000 $ 0.13

The average remaining contractual term of the options outstanding and exercisable at September 30, 2025, was 3.75 years. At September 30, 2025, options outstanding and exercisable had an aggregate intrinsic value of $ 1,650,300 based on the Company's stock price of $ 0.36 at September 30, 2025.

8. Leases

The Company renewed its office operating lease on February 1, 2023, for 24 months. The Company entered into a two-year operating lease for its corporate office space for a total lease payment of $ 41,625 . A lease liability and corresponding right-of-use asset of $ 38,701 was recognized on the lease inception date, February 1, 2023. This lease ended on January 31, 2025.  During the nine months ended September 30, 2025 the Company paid $ 1,771 in lease payments, with imputed interest of $ 46 .

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The Company renewed its office operating lease on February 1, 2025 for 12 months, and does not anticipate the lease will be more than 12 months. Since the remaining lease term is one year or less the Company did not recognize a right of use asset and related lease liability on the balance sheet for the lease renewal.

9. Subsequent Events

On October 1, 2025, the Company`s Board approved a private placement financing of 10,000,000 units at a price of $ 0.25 per unit for total proceeds to the Company of $ 2,500,000 .  Each unit includes one share of common stock and one-half warrant to purchase one share of common stock, exercisable for 2 years from the close of the offering at an exercise price of $ 0.40 .  On September 26, 2025, the Company received a subscription agreement for 4,000,000 units and one-half warrants, recorded as shares to be issued for $ 1,000,000 during the period.

On October 1, 2025, the Company's Board approved the recission of the stock options granted on June 18, 2025 to all directors, except for management, reducing the options from 2,295,000 to 450,000 .

On October 24, 2025, pursuant to the Board’s approval on October 1, 2025, the Company completed a non-brokered private placement financing of 10,000,000 units at a price of $ 0.25 per unit for total proceeds to the Company of $ 2,500,000 .  Each unit includes one share of common stock and one-half warrant to purchase one share of common stock, exercisable for 2 years from the close of the offering at an exercise price of $ 0.40 .

On October 28, 2025, the Company executed a purchase and sale agreement with Ronald Acree related to the Acree Lease to purchase 113 acres for a purchase price of $ 250,000 .

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ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.

Forward-Looking Statements

Certain statements contained in this Form 10-Q, including in Management's Discussion and Analysis of Financial Condition and Results of Operations and Quantitative and Qualitative Disclosures About Market Risk, are intended to be covered by the safe harbor provided for under Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended.  Our forward-looking statements include our current expectations and projections about future results, performance, results of litigation, prospects and opportunities, including reserves and other mineralization. We have tried to identify these forward-looking statements by using words such as "may," "will," "expect," "anticipate," "believe," "intend," "feel," "plan," "estimate," "project," "forecast" and similar expressions.  These forward-looking statements are based on information currently available to us and are expressed in good faith and believed to have a reasonable basis.  However, our forward-looking statements are subject to a number of risks, uncertainties and other factors that could cause our actual results, performance, prospects or opportunities to differ materially from those expressed in, or implied by, these forward-looking statements.

These risks, uncertainties and other factors include, but are not limited to, those set forth under Part I, Item 1A. - Risk Factors in our 2024 Form 10-K/A and in Part II, Item 1.A. - Risk Factors of our 2025 Q1, 2025 Q2 and 2025 Q3 on Form 10-Q. Given these risks and uncertainties, readers are cautioned not to place undue reliance on our forward-looking statements.  All subsequent written and oral forward-looking statements attributable to Thunder Mountain Gold, Inc. or to persons acting on our behalf are expressly qualified in their entirety by these cautionary statements.  Except as required by federal securities laws, we do not intend to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

The following Management's Discussion and Analysis of Financial Condition and Results of Operation ("MD&A") is intended to help the reader understand our financial condition. MD&A is provided as a supplement to, and should be read in conjunction with, our financial statements and the accompanying integral notes ("Notes") thereto.  The following statements may be forward-looking in nature and actual results may differ materially.

Plan of Operations

The Company, including its subsidiaries, owns mining rights, mining claims, and properties in the mining areas of Nevada and Idaho, which includes its South Mountain Property in Idaho, and its Trout Creek Property in Nevada.

The Company owns 100% of the outstanding stock of Thunder Mountain Resources, Inc., a Nevada Corporation. Thunder Mountain Resources, Inc. owns 100% of the outstanding stock of South Mountain Mines, Inc. (SMMI), an Idaho Corporation. Thunder Mountain Resources, Inc. completed the direct purchase of 100% ownership of South Mountain Mines, Inc. on September 27, 2007, which consisted of 17 patented mining claims (approximately 327 acres) located in Owyhee County in southwestern Idaho. After the purchase, The Company continues to expand the land position by staking lode mining claims and obtaining mineral leases on adjoining private land.

The Company's plan of operation for the next twelve months, subject to business conditions, will be to continue to advance the South Mountain Project, including continued baseline environmental and engineering work necessary to complete a Preliminary Economic Analysis or Initial Analysis. The Company will continue to advance the South Mountain Project and acquire additional properties through partnerships, joint ventures, option agreements, and strategic relationships.

Financial Condition

Liquidity and Capital Resources

The condensed consolidated financial statements for the nine-months ended September 30, 2025, have been prepared under the assumption that we will continue as a going concern. Such an assumption contemplates the realization of assets and the satisfaction of liabilities in the normal course of business. As shown in the condensed consolidated financial statements for the nine-month period ended September 30, 2025, we have cash reserves sufficient to cover normal operating expenditures for the following 12 months.

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Long-term strategies involve financing through stock or debt sales and eventual profitability from mining operations. Capital raising efforts are challenging given the current capital market conditions and the broader economic climate in the United States. Company management is actively seeking additional funds through various means, including public offerings, private placements, mergers, option agreements, and external debt, to ensure the Company's viability.

On November 28, 2024, the Board of Directors authorized a private placement financing of up to $700,000, offering equity units at $0.05 per unit. Each unit consisted of one share of common stock and one common stock purchase warrant, with each warrant exercisable for one additional share at $0.10 per share for 36 months from issuance.

On December 16, 2024, the Company closed the private placement, issuing 12,400,000 shares of common stock and an equal number of common stock purchase warrants, generating gross proceeds of approximately $620,000, including $20,000 in non-cash consideration for vendor services.

On April 15, 2025, the Company`s Board approved a private placement financing of 10,000,000 units at a price of $0.12 per unit for total proceeds to the company of $1,200,000.  Each unit includes one share of common stock and a warrant to purchase one-half share of common stock, exercisable for 2 years from the close of the offering at an exercise price of $0.18 per share. On May 25, 2025, the Company closed the private placement of 10,000,000 units for aggregate proceeds of $1,200,000.  No placement agent fees were paid during the offering.

On October 1, 2025, the Company`s Board approved a private placement financing of 10,000,000 units at a price of $0.25 per unit for total proceeds to the Company of $2,500,000.  Each unit includes one share of common stock and one-half warrant to purchase one share of common stock, exercisable for 2 years from the close of the offering at an exercise price of $0.40. On October 24, 2025, the Company completed a non-brokered private placement financing pursuant to the Board's approval on October 1, 2025.

Our plans for the long-term viability include financing our future operations through sales of our common stock and/or debt and the eventual profitable exploitation of our mining properties.  There can be no assurance that such activities will be successful.

At September 30, 2025, we had current assets of $1,706,562.  Our future liquidity and capital requirements will depend on many factors, including timing, cost and progress of our exploration efforts, our evaluation of, and decisions with respect to, our strategic alternatives, and costs associated with the regulatory approvals. Our short-term liquidity needs and capital requirements consist primarily of exploration expenses, lease payments and salaries and administrative expenses; our longer-term liquidity needs include construction and equipment costs if we are able to successfully progress our project to operations. If we do not have enough cash to complete our exploration programs, we intend to seek to raise additional funds from public offerings, sale of liquid stock or loans or to adjust our business plans accordingly.

  • On October 7, 2025 the Company had a cash balance of $2,223,709 in our bank accounts, which does not include consideration for option payments mentioned below.
  • Management's goal is to manage expenses to not exceed the on-hand cash resources of the Company.
  • The Company will also consider other sources of funding, including potential mergers or lease option to purchase, the sale of all or part of the Company`s assets, and/or additional farm-out of its other exploration property.

During the nine months ended September 30, 2025, the Company discloses a net cash outflow from operating activities amounting to $1,145,335, compared to an operating cash outflow of $414,098 for the nine months ended September 30, 2024. During the same period ended September 30, 2024, the net cash source from investing activities was $384,981 generated from the sale of BeMetals Corp. common stock.

During the nine months ended September 30, 2025, net cash inflow from financing activities totaled $2,330,000. This included proceeds of $130,000 received on February 7, 2025, from a subscription agreement signed on November 5, 2024 for 2,600,000 shares of common stock and 2,600,000 common stock purchase warrants.  Cash proceeds totaling $1,200,000 were received after the completion of a private placement financing, which included the issuance of 10,000,000 units, with each unit consisting of one share of common stock and warrants to purchase one-half share of common stock, exercisable for 2 years from the close of the offering at an exercise price of $0.18 per share. Additional cash proceeds totaling $1,000,000 were received in advance of approval of a private placement financing of $2,500,000 approved by the Board on October 1, 2025, see Note 9.

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The Company realized a net cash increase of $1,184,665 for the nine-months ended September 30, 2025 compared to a net cash decrease of $29,117 for the corresponding period in 2024.

Results of Operations:

For the three months ended September 30, 2025, the Company incurred a net loss of $480,751, compared to a net loss of $114,631 for the comparable period in 2024. For the nine months ended September 30, 2025, the Company reported a net loss of $1,920,166, compared to a net loss of $433,834 for the same period in 2024. The change is primarily attributable to elevated exploration expenditures related to the advancement of the South Mountain Mine Project and stock-based compensation expenses incurred for options granted to officers and directors.

Three-month period comparisons

Operating expenses for the three months ended September 30, 2025 totaled $482,210, an increase of $366,984, or 318%, compared to the prior year period. This variance was primarily attributable to elevated exploration activities and increased legal and accounting expenses.

Exploration expenditures amounted to $290,661, representing a year-over-year increase of $250,497 or 624%. The rise was driven by strategic exploration initiatives undertaken to advance the Company's mineral interests.

During the quarter ended September 30, 2025, legal and accounting fees increased by $69,606 to a total of $83,467. The increase primarily reflects professional service fees incurred in connection with outsourced financial consulting services, as well as water rights and claim fees being negotiated on behalf of SMMI. Management and administrative expenses increased by $46,881, or 77%, compared to the prior period. The increase was primarily driven by investor relations expenses and increased filing fees during the reporting period.

Nine-month period comparisons

For the nine-month period ended September 30, 2025, operating expenses totaled $1,922,919, reflecting an increase of $1,530,227, or 390%, compared to the corresponding period in 2024. This variance was primarily attributable to elevated exploration activities and increased management and administrative expenses.

Exploration expenditures amounted to $636,623, representing a year-over-year increase of $554,099 or 671%. The rise was driven by strategic exploration initiatives undertaken to advance the Company's mineral interests.

Legal and accounting expenses increased by $87,123, or 122%, to $158,719. The increase was associated with professional services supporting the $1,200,000 private placement of common stock and warrants completed during the reporting period. A portion of the placement proceeds was allocated to pre-drilling fieldwork and technical evaluations.

Management and administrative costs rose by $889,005, or 373%, compared to the prior-year period. This increase was largely due to non-cash stock-based compensation expenses related to option grants issued to executive officers and members of the Board of Directors.

Going Concern:

The audit opinion and notes that accompany our consolidated financial statements for the year ended December 31, 2024 disclose a 'going concern' qualification to our ability to continue in business. These condensed consolidated financial statements have been prepared on the basis that the Company will continue as a going concern, which contemplates the realization of our assets and the settlement of our liabilities in the normal course of our operations

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As of the date of this report on Form 10-Q, we have sufficient cash to meet our normal operating commitments for the next 12 months without additional financing. However, we are an exploration company with exploration programs that require significant cash expenditures. A significant drilling program, such as that we have executed in prior years, can result in depletion of cash and would be prohibitive unless we can secure sufficient cash to support normal operations for the following 12 months.

We plan, as funding allows, to follow up on our positive drill results on our South Mountain Project. Subject to available capital, we may continue prudent exploration programs on our material exploration properties and/or fund some exploratory activities on early-stage properties.

We will require additional funding and/or reductions in exploration and administrative expenditures in future periods. Given current economic conditions, we cannot provide assurance that necessary financing transactions will be available on terms acceptable to us, or at all. Without additional financing, we would have to curtail our exploration and other expenditures while we seek alternative funding arrangements to provide sufficient capital to meet our ongoing, non-discretionary expenditures, and maintain our primary mineral properties. If we cannot obtain sufficient additional financing, we may be unable to make required property payments on a timely basis and be forced to return some or all of our leased or optioned properties to the underlying owners.

Contractual Obligations

Ascent CFO Solutions, LLC:

On April 10, 2025, the Company entered into a services agreement with Ascent CFO Solutions, LLC to provide outsourced financial consulting services.

The Company holds three leases pertaining to land parcels adjacent to its South Mountain patented and unpatented mining claims. The details of these leases are as follows:

Acree Lease:

On June 20, 2008, the Company entered into a lease agreement with Ronald Acree for a six-year term, covering 113 acres at a lease rate of $20 per acre. The lease agreement includes an option to extend for an additional ten years at a revised rate of $30 per acre. Beginning on the 17th anniversary of the lease, the rate increases to $50 per acre, payable in the form of an advanced royalty, through the 30th anniversary. Thereafter, the lease rate will further increase to $75 per acre.

Effective June 2025, upon entering the 17th year of the lease term, the lease was extended an additional 10 years. The annual lease payment increased to $5,650, reflecting the rate adjustment to $50 per acre for the 113-acre property.

Lowry Lease:

On October 24, 2008, the Company executed a lease agreement with William and Nita Lowry for a duration of 6 years, encompassing 376 acres at a rate of $20 per acre. Similar to the Acree Lease, the Lowry Lease incorporates an option to extend for an additional 10 years at a revised rate of $30 per acre. Following the passing of the original lessors, the lease was inherited by Michael Lowry, their son. The lease will expire on October 24, 2025. The Company's management is in contact with Michael Lowry negotiating a lease extension.

Looten Lease:

On June 2, 2025, the Company executed a lease agreement with Kevin and Jo Looten for an initial term of 7 years, encompassing 18 acres at a rate of $30 per acre. Similar to the Acree Lease, the Looten Lease incorporates an option to extend for an additional 10 years at a revised rate of $40 per acre.

OGT, LLC

SMMI is the sole manager of the South Mountain Project in its entirety through a separate Mining Lease with Option to Purchase ("Lease Option") with the Company's majority-owned subsidiary OGT.  SMMI has an option to purchase the South Mountain mineral interest for a capped $5 million less net returns royalties paid through the date of exercise. The Lease Option expires in November 2026. Under the Lease Option, SMMI pays an advance of $5,000 net returns royalty to OGT annually on November 4 which is distributed to OGT's minority member.

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The leases and net royalties' payment are summarized in the following table.

Contractual obligations Payments due by period
Total* Less than 1
year
2-3
years
4-5
years
More than
5 years
Acree Lease (yearly, June)(1) $56,500 $5,650 $11,300 $11,300 $        28,250
Lowry Lease (yearly, October)(2) $11,280 $11,280 - - $        -
Kevin and Jo Looten Trust $3,780 $  540 $ 1,080 $ 1,080 $       1,080
OGT LLC (3) $10,000 $5,000 $5,000 - $        -
Total $81,560 $22,470 $17,380 $12,380 $        29,330

(1) Effective June 2025, upon entering the 17th year of the lease term, the lease was extended an additional 10 years at $50/acre after 2024.

(2) The Lowry lease has an early buy-out provision for 50% of the remaining amounts owed in the event the Company desires to drop the lease prior to the end of the first seven-year period.

(3) OGT LLC, managed by the Company's wholly owned subsidiary SMMI, receives a $5,000 per year payment for up to 10 years, or until a $5 million capped NPI Royalty is paid.

Item 3.  Quantitative and Qualitative Disclosures about Market Risk

Not applicable.

Item 4.  Controls and Procedures

Evaluation of Disclosure Controls and Procedures

At the end of the period covered by this report, an evaluation was carried out under the supervision of, and with the participation of, the Company's Management, including the Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of the Company's disclosure controls and procedures (as defined in Rule 13a - 15(e) and Rule 15d - 15(e) of the Securities and Exchange Act of 1934, as amended).  Based on that evaluation, the Chief Executive Officer and Chief Financial Officer have concluded that as of the end of the period covered by this report, the Company's disclosure controls and procedures were adequately designed and effective in ensuring that information required to be disclosed by the Company in its reports that it files or submits to the SEC under the Exchange Act, is recorded, processed, summarized and reported within the time period specified in applicable rules and forms.

Changes in Internal Controls Over Financial Reporting

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On April 10, 2025, the Company entered into a services agreement with Ascent CFO Solutions, LLC to provide outsourced financial consulting services. This engagement was intended to ensure that accounting personnel responsible for financial reporting possess the necessary technical expertise and capacity to consistently apply complex accounting standards. We believe these measures were adequate to remediate the identified material weakness as previously documented in the Company's 10-K/A dated December 31, 2024.

PART II - OTHER INFORMATION

Item 1.  Legal Proceedings.

We are not aware of any material pending litigation or of any proceedings known to be contemplated by governmental authorities which are, or would be, likely to have a material adverse effect, individually or in the aggregate, upon us or our operations, taken as a whole. No director, officer or affiliate of Thunder Mountain and no owner of record or beneficial owner of more than 5% of our securities or any associate of any such director, officer or security holder is a party adverse to Thunder Mountain or has a material interest adverse to Thunder Mountain in reference to any currently pending material litigation.

Item 1A. Risk Factors.

In addition to other information set forth in this Quarterly Report on Form 10-Q, Item 1A. - Risk Factors of our 2024 Form 10-K/A and our Quarterly Report on Form 10-Q for the three months ended March 31, 2025, set forth information relating to important risks and uncertainties that could materially adversely affect our business, financial condition or operating results. Additional risks and uncertainties currently unknown to us, or that we currently deem to be immaterial, also may materially adversely affect our business, financial condition, or future results.

Mineral resources are subject to further exploration and development, are subject to additional risks, and no assurance can be given that they will eventually convert to future reserves. Inferred Resources have a great amount of uncertainty as to their existence and their economic and legal feasibility. Mineral interests are periodically assessed for impairment of value and any subsequent losses are charged to operations at the time of impairment. Thunder Mountain Gold evaluated these impairment considerations and determined that no such impairments occurred as of September 30, 2025.

Risks Related to Our Company

We have a history of losses and expect to continue to incur losses in the future.

We have incurred losses since inception and expect to continue to incur losses in the future. We had an accumulated deficit of approximately $9,719,885 as of September 30, 2025. We expect to continue to incur losses unless and until such time as one of our properties enters into commercial production and generates sufficient revenues to fund continuing operations. We recognize that if we are unable to generate significant revenues from mining operations and dispositions of our properties, we will not be able to earn profits or continue operations. At this early stage of our operation, we also expect to face the risks, uncertainties, expenses, and difficulties frequently encountered by companies at the start-up stage of their business development. We cannot be sure that we will be successful in addressing these risks and uncertainties and our failure to do so could have a materially adverse effect on our financial condition.

Item 2.  Unregistered Sales of Equity Securities and Use of Proceeds.

None.

Item 3.  Defaults Upon Senior Securities.

None.

Item 4.  Mine Safety Disclosures

Pursuant to Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 (the "Dodd-Frank Act"), issuers that are operators, or that have a subsidiary that is an operator, of a coal or other mine in the United States are required to disclose in their periodic reports filed with the SEC information regarding specified health and safety violations, orders and citations, related assessments and legal actions, and mining-related fatalities.

The information concerning mine safety violations or other regulatory matters required by Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act and Item 104 of Regulation S-K is included in exhibit 95 to this Quarterly Report.

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During the nine-month period ended September 30, 2025, the Company did not have any operating mines and therefore had no such specified health and safety violations, orders or citations, related assessments or legal actions, mining-related fatalities, or similar events in relation to the Company's United States operations requiring disclosure pursuant to Section 1503(a) of the Dodd-Frank Act.

Item 5.  Other Information

None.

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Item 6.  Exhibits

(a) Documents which are filed as a part of this report:

Exhibits :

3.1 Articles of Incorporation, Thunder Mountain Gold Inc. (Nevada), December 11, 2007
3.2 Bylaws, Thunder Mountain Gold Inc. (Nevada)
4.1 [Form of Warrants (December)]
4.2 [Form of Warrants (May)]
4.3 [Form of Options]
10.1[**] [ Form of Subscription Agreement related to 2025 Private Placement ]
10.2[**] [Form of Warrant Agreement related to 2025 Private Placement]
10.3 Amendment to Option Agreement dated September 4, 2025 (incorporated by reference to the Company’s Form 8-K filed on September 8, 2025.
31.1* Certification Required by Rule 13a-14(a) or Rule 15d-14(a). Jones
31.2* Certification Required by Rule 13a-14(a) or Rule 15d-14(a). Jones
32.1* Certification required by Rule 13a-14(a) or Rule 15d-14(b) and section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350. Jones
32.2* Certification required by Rule 13a-14(a) or Rule 15d-14(b) and section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350. Jones
95* Mine safety information listed in Section 1503 of the Dodd-Frank Act.
101.INS* Inline XBRL Instance Document–the instance document does not appear in the Interactive Data File as its XBRL tags are embedded within the Inline XBRL document
101.SCH* Inline XBRL Taxonomy Extension Schema Document
101.CAL* Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF* Inline XBRL Taxonomy Extension Definition Linkbase Document
101.LAB* Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE* Inline XBRL Taxonomy Extension Presentation Linkbase Document
104 Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

*Filed herewith.

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SIGNATURES

Pursuant to the requirements of Section 13 or 15(b) of the Securities and Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf of the undersigned, thereunto duly authorized.

THUNDER MOUNTAIN GOLD, INC.

By /s/ Eric T. Jones

Eric T. Jones

President and Chief Executive Officer

Date: November 10, 2025

Pursuant to the requirements of the Securities Act of 1934 this report signed below by the following person on behalf of the Registrant and in the capacity on the date indicated.

By /s/ Eric T. Jones

Eric. T Jones

Principal Financial Officer

Date: November 10, 2025


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TABLE OF CONTENTS
Part I - Financial InformationItem 1 - Financial StatementsItem 2. Management's Discussion and Analysis Of Financial Condition and Results Of OperationsItem 3. Quantitative and Qualitative Disclosures About Market RiskItem 4. Controls and ProceduresPart II - Other InformationItem 1. Legal ProceedingsItem 1A. Risk FactorsItem 2. Unregistered Sales Of Equity Securities and Use Of ProceedsItem 3. Defaults Upon Senior SecuritiesItem 4. Mine Safety DisclosuresItem 5. Other InformationItem 6. Exhibits

Exhibits

3.1 Articles of Incorporation, Thunder Mountain Gold Inc. (Nevada), December 11, 2007 3.2 Bylaws, Thunder Mountain Gold Inc. (Nevada) 4.1 [Form of Warrants (December)] 4.2 [Form of Warrants (May)] 4.3 [Form of Options] 10.1[**] [Form of Subscription Agreement related to 2025 Private Placement] 10.2[**] [Form of WarrantAgreement related to 2025 Private Placement] 10.3 Amendment to Option Agreement dated September 4, 2025 (incorporated by reference to the Companys Form 8-K filed on September 8, 2025. 31.1* Certification Required by Rule 13a-14(a) or Rule 15d-14(a). Jones 31.2* Certification Required by Rule 13a-14(a) or Rule 15d-14(a). Jones 32.1* Certification required by Rule 13a-14(a) or Rule 15d-14(b) and section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350. Jones 32.2* Certification required by Rule 13a-14(a) or Rule 15d-14(b) and section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350. Jones 95* Mine safety information listed in Section 1503 of the Dodd-Frank Act.