[8-K] Bunker Hill Mining Corp. Reports Material Event

Rhea-AI Filing Summary

Bunker Hill Mining Corp. (BHLL) amended its secured promissory note purchase agreement with Monetary Metals Bond III LLC, extending the availability date for advances from June 30, 2025 to January 31, 2026. The agreement, entered into by BHLL and its wholly owned subsidiary Silver Valley Metals Corp., remains secured by security interests over all assets, properties, and undertakings of both entities.

The company also announced the amendment via press release, which was furnished as an exhibit. The amendment is the third to the original August 8, 2024 agreement.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 10, 2025

BUNKER HILL MINING CORP.

(Exact Name of Registrant as Specified in Charter)

Nevada		333-150028		32-0196442
(State or Other Jurisdiction		(Commission		(IRS Employer
of Incorporation)		File Number)		Identification No.)

1009 McKinley Avenue, Kellogg, Idaho 83837

(Address of Principal Executive Offices) (Zip Code)

(604) 417-7952

(Registrant’s Telephone Number, Including Area Code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e 4(c))

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

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
none

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 1.01 Entry into a Material Definitive Agreement.

On November 10, 2025, Bunker Hill Mining Corp., a Nevada corporation (the “Company”) and the Company’s wholly-owned subsidiary, Silver Valley Metals Corp. (“Silver Valley”), entered into an amendment to the secured promissory note purchase agreement dated August 8, 2024 (the “NPA Amendment”), as previously amended by a first amendment to secured promissory note purchase agreement dated November 11, 2024, and a second amendment to secured promissory note purchase agreement dated June 5, 2025 (as amended, the “NPA”), with Monetary Metals Bond III LLC to, amongst other things, extend the availability date for advances thereunder from June 30, 2025 to January 31, 2026. The NPA is secured by security interests over all assets, properties and undertakings of the Company and Silver Valley.

The foregoing description of the NPA Amendment does not purport to be complete and is qualified in its entirety by the full text of the NPA Amendment, which is filed as Exhibit 10.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.

Reference is made to the disclosure set forth in Item 1.01 of this Current Report on Form 8-K, which disclosure is incorporated by reference into this Item 2.03.

Item 7.01 Regulation FD Disclosure.

On November 10, 2025, the Company issued a press release regarding the NPA Amendment. A copy of the press release is furnished as Exhibit 99.1 hereto and is incorporated herein by reference.

The information set forth in this Item 7.01, including the information set forth in Exhibit 99.1, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.]

Item 9.01 Financial Statements and Exhibits.

(d)		Exhibits.
Exhibit No.		Description
10.1		Third Amendment to Secured Promissory Note Purchase Agreement, dated as of November 10, 2025, by and among Bunker Hill Mining Corp., Silver Valley Metals Corp., and Monetary Metals Bond III LLC
99.1		Press Release, dated as of November 10, 2025
104		Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	BUNKER HILL MINING CORP.
Dated: November 14, 2025	By:	/s/ Sam Ash
	Name:	Sam Ash
	Title:	President and CEO

FAQ

What did Bunker Hill Mining (BHLL) change in its note agreement?

It extended the availability date for advances under the secured promissory note purchase agreement to January 31, 2026.

Who are the parties to BHLL’s amended agreement?

The parties are Bunker Hill Mining Corp., its subsidiary Silver Valley Metals Corp., and Monetary Metals Bond III LLC.

When was the original note purchase agreement signed?

The original agreement was dated August 8, 2024, later amended on November 11, 2024 and June 5, 2025.

What collateral secures BHLL’s obligations under the agreement?

Security interests over all assets, properties, and undertakings of BHLL and Silver Valley.

Did BHLL issue a press release about the amendment?

Yes. A press release dated November 10, 2025 was furnished as Exhibit 99.1.

Which exhibit contains the third amendment details?

Exhibit 10.1 contains the Third Amendment to the Secured Promissory Note Purchase Agreement.