8-K

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) March 6, 2026

Registrant’s telephone number, including area code:

(406

) 606-4117

Not Applicable

(Former name or former address, if changed since last report.)

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:

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 3.01 Notice of Delisting or Failure to Satisfya Continued Listing Rule or Standard; Transfer of Listing

On March 6, 2026, United States Antimony Corporation (NYSE: UAMY) (NYSE Texas: UAMY) (“USAC,” “US Antimony,” or the “Company”) announced New York Stock Exchange (the “NYSE”) had approved the uplisting of the Company’s common stock, par value $0.01 per share, from the NYSE American LLC (the “NYSE American”) to the NYSE (the “Transfer”), where the common stock will continue to trade under the ticker symbol “UAMY.” The Company expects that trading of its common stock on the NYSE will commence on March 11, 2026. The common stock will continue to trade on the NYSE American under the ticker symbol “UAMY” until the Transfer is complete. The Company will remain listed on the NYSE Texas Exchange under the symbol “UAMY.”

Item 7.01 Regulation FD Disclosure

On March 6, 2026, the Company issued a press release announcing the Transfer.

A copy of the Press Release is attached as Exhibit 99.1 and is hereby incorporated by reference into this Item 7.01. The information contained in this Current Report on Form 8-K, including Exhibit 99.1 furnished herewith, is being furnished and shall not be deemed “filed” for any purpose, including for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section and shall not be deemed incorporated by reference into any filing under the Exchange Act or the Securities Act of 1933, as amended, regardless of any general incorporation language in such filing, except to the extent expressly stated in such filing.

Cautionary Note Regarding Forward-Looking Statements

This Current Report on Form 8-K, including the Press Release, contains forward-looking statements, including the Company’s plans for, and potential benefit from, the joint venture. Forward-looking statements reflect management's current knowledge, assumptions, judgment, and expectations regarding future performance or events. Although management believes that the expectations reflected in such statements are reasonable, they give no assurance that such expectations will prove to be correct, and you should be aware that actual events or results may differ materially from those contained in the forward- looking statements. Words such as “will,” “expect,” “intend,” “plan,” “potential,” “possible,” “goals,” “accelerate,” “continue,” and similar expressions identify forward-looking statements.

Forward-looking statements are subject to a number of risks and uncertainties including, but not limited to, those described in the Company’s filings on Form 10-K, Form 10-Q, and Form 8-K with the United States Securities and Exchange Commission.

All forward-looking statements are expressly qualified in their entirety by this cautionary notice. You should not rely upon any forward-looking statements as predictions of future events. The Company undertakes no obligation to revise or update any forward-looking statements made in this Current Report on Form 8-K to reflect events or circumstances after the date hereof, to reflect new information or the occurrence of unanticipated events, to update the reasons why actual results could differ materially from those anticipated in the forward-looking statements, in each case, except as required by law.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

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.

Exhibit 99.1

U****nitedStates Antimony Corporation Announces

Uplisting to the New York Stock Exchange

~ Trading Expectedto Commence on March 11 ~

“TheCritical Minerals and ZEO Company" ~ Antimony, Cobalt, Tungsten, and Zeolite ~

DALLAS,TX / ACCESS Newswire / March 6, 2026 / United States Antimony Corporation (“USAC,” “US Antimony,” or the “Company”), (NYSE American: UAMY) (NYSE Texas: UAMY), a leading producer and processor of antimony, zeolite, and other critical minerals, and the only fully integrated antimony company in the world outside of China and Russia, today announced that the Company has been approved for uplisting to the New York Stock Exchange (NYSE) from the NYSE American.

The Company anticipates that its common shares will commence trading at market open on the NYSE on or about March 11, 2026, under the symbol “UAMY.” The uplisting to the NYSE marks a further advancement in the Company’s ongoing goal to continue enhancing its institutional and retail shareholder base by providing a new market maker specialist and enhanced trading characteristics on the NYSE.

Upon effectiveness of the listing on the NYSE, trading of the Company’s common shares on the NYSE American will cease. The Company will remain listed on the NYSE Texas Exchange under the symbol “UAMY.”

Current shareholders of the Company are not required to take any action prior to the Company’s expected uplisting to the NYSE on March 11, 2026.

About USAC:

United States Antimony Corporation and its subsidiaries in the U.S., Mexico, and Canada (“USAC,” “U.S. Antimony,” the “Company,” “Our,” “Us,” or “We”) sell antimony, zeolite, and precious metals primarily in the U.S. and Canada. The Company processes third party ore primarily into antimony oxide, antimony metal, antimony trisulfide, and precious metals at its facilities located in Montana and Mexico. Antimony oxide is used to form a flame-retardant system for plastics, rubber, fiberglass, textile goods, paints, coatings, and paper, as a color fastener in paint, and as a phosphorescent agent in fluorescent light bulbs. Antimony metal is used in bearings, storage batteries, and ordnance. Antimony trisulfide is used as a primer in ammunition. The Company also recovers precious metals, primarily gold and silver, at its Montana facility from third party ore. At its Bear River Zeolite (“BRZ”) facility located in Idaho, the Company mines and processes zeolite, a group of industrial minerals used in water filtration, sewage treatment, nuclear waste and other environmental cleanup, odor control, gas separation, animal nutrition, soil amendment and fertilizer, and other miscellaneous applications. During 2024 and 2025, the Company began acquiring mining claims and leases located in Montana, Alaska and Ontario, Canada in an effort to expand its operations as well as its product offerings.

Learn more about United States Antimony Corporation at www.usantimony.com.

Forward-Looking Statements:

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including, without limitation, statements regarding the Company's future operations, production levels, financial performance, business strategy, market conditions, demand for antimony, zeolite, other critical minerals, and precious metals, expected costs, and other statements that are not historical facts. These statements are based on current expectations, estimates, forecasts, and projections about the industries in which the Company operates, as well as management’s beliefs and assumptions. Words such as “anticipates,” “expects,” “intends,” “plans,” “believes,” “seeks,” “estimates,” “may,” “will,” “should,” “could,” and variations of these words or similar expressions are intended to identify such forward-looking statements.

Forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially from those indicated in such statements, including, but not limited to: fluctuations in the market prices and demand for antimony and zeolite; changes in domestic and global economic conditions; operational risks inherent in mining and mineral processing; geological or metallurgical conditions; availability and cost of energy, equipment, transportation, and labor; the Company's ability to maintain or obtain permits, licenses, and regulatory approvals; changes in environmental and mining laws or regulations; competitive factors; the impact of geopolitical developments; and the effects of weather, natural disasters, or health pandemics on operations and supply chains. Additional information regarding risk factors that could cause actual results to differ materially is included in the Company’s filings with the U.S. Securities and Exchange Commission, including the most recent Annual Report on Form 10-K and subsequent Quarterly Reports on Form 10-Q.

The Company undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise, except as required by law. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof.