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): August 25, 2026

AMERICAN BATTERY MATERIALS INC.

(Exact Name of Registrant as Specified in Charter)

Delaware	001-41594	22-3956444
(State or other jurisdiction	(Commission	(IRS Employer
of incorporation)	File Number)	Identification No.)

500 West Putnam Ave., Suite 400
Greenwich, Connecticut		06830
(Address of principal executive offices)		(Zip Code)

Registrant’s telephone number, including area code: (800) 998-7962

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:

☐	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
Common Stock		BLTH		N/A

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. ☐

CURRENT REPORT ON FORM 8-K

American Battery Materials Inc. (the “Company”)

August 25, 2026

Item 1.01 Entry into a Material Definitive Agreement.

On or about the date hereof, the Company entered into amendments to certain outstanding promissory notes and convertible notes. Pursuant to the amendments, the maturity date of the notes has been extended to September 30, 2026. In the event that the Company shall not have consummated an uplist of its common stock to NYSE American on or prior to September 30, 2026, then, effective as of September 30, 2026, the principal amount due under the notes shall be increased 15% for a total increase of $1,459,217, taking the total principal of the notes to $11,187,330. Such principal increase shall be automatic and without the necessity of any further action by any of the parties. In addition, in the event that the Company shall not have consummated an uplist of its common stock to NYSE American on or prior to September 30, 2026, then, effective as of September 30, 2026, the Company shall arrange for the issuance of six hundred twelve thousand four hundred seventy-six (612,476) shares of Common Stock to the noteholders. Such issuance of additional shares shall be automatic and without the necessity of any further action by any of the parties. With these amendments, the Company is not in default under any of its notes.

SIGNATURES

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.

	AMERICAN BATTERY MATERIALS INC.

Date: August 25, 2026	By:	/s/ David E. Graber
		David E. Graber
		Chief Executive Officer