Form 8-K

8-K — UNITED STATES ANTIMONY CORP

Accession: 0001104659-26-100539

Filed: 2026-08-25

Period: 2026-08-25

CIK: 0000101538

SIC: 3330 (PRIMARY SMELTING & REFINING OF NONFERROUS METALS)

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — tm2623553d2_8k.htm (Primary)

EX-99.1 — EXHIBIT 99.1 (tm2623553d2_ex99-1.htm)

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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)

August 25, 2026

UNITED

STATES ANTIMONY CORPORATION

(Exact

name of registrant as specified in its charter)

Texas

001-08675

81-0305822

(State or other jurisdiction

of incorporation)

(Commission

File No.)

(IRS Employer

Identification Number)

4438

W. Lovers Lane, Unit

100, Dallas,

75209

(Address of principal executive officers)

(Zip Code)

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:

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, $0.01 par value

UAMY

NYSE

Common

Stock, $0.01 par value

UAMY

NYSE

Texas

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 7.01 Regulation FD Disclosure.

On August 25, 2026, United States Antimony Corporation

(“USAC”, “US Antimony”, or the “Company”) issued a press release reporting an update on the Company’s

mining results at its Stibnite Hill, Montana location. This press release is furnished as Exhibit 99.1 to this Current Report on Form

8-K and is incorporated herein by reference.

The foregoing disclosure is qualified in its entirety

by the full text of the Press Release.

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 furnished as Exhibit 99.1 to this Current Report on Form 8-K, contains forward-looking statements. 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.

Exhibit No.

Description

99.1

Press Release issued by United States Antimony Corporation dated August 25, 2026

104

Cover Page Interactive Data File (embedded with the inline XBRL document)

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.

UNITED STATES ANTIMONY CORPORATION

Dated:

August 25, 2026

By:

/s/ Shawn P. Winkler

Shawn P. Winkler

Interim Chief Financial Officer

EX-99.1 — EXHIBIT 99.1

EX-99.1

Filename: tm2623553d2_ex99-1.htm · Sequence: 2

Exhibit

99.1

United States

Antimony Provides Update on

Mining Success

at Stibnite Hill, Montana

“The

Critical Minerals and ZEO Company”

Antimony, Gold, Tungsten, and Zeolite ~

DALLAS,

TX / ACCESS Newswire / August 25, 2026 / United States Antimony Corporation (“USAC,” “US Antimony,” or the

“Company”), (NYSE: 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, is pleased

to announce the successful continuation of mining operations at its Stibnite Hill property in Thompson Falls, Montana.

Since resuming mining operations this past spring

in April, USAC has continued to advance its domestic antimony mining program at Stibnite Hill in Montana. To-date in 2026, the Company

has transported 42 truckloads of stibnite ore from the mine, averaging approximately 14 tons per truck and approximately 10% antimony

content. This represents approximately 576 tons of high-grade stibnite ore transported from Stibnite Hill during the current 2026 mining

campaign.

Mining and haulage operations are currently progressing

at a rate of approximately three truckloads per operating day, or approximately 42 tons of ore per day. The current pace represents a

significant increase compared with the Company's 2025 mining campaign, when USAC transported approximately 800 tons of antimony ore over

a 45-day period. At its present operating rate, the 2026 campaign is moving ore down the mountain at over two times faster than last year's

daily rate.

Material mined at Stibnite Hill is transported

for processing to the Company's Radersburg, Montana flotation mill, with the resulting antimony concentrate then being shipped to either

USAC's Thompson Falls smelter or the Madero smelter located in Mexico for conversion into finished antimony products, including mill spec

material.

The continued progress at Stibnite Hill represents

another important step in USAC's previously announced strategy to expand its access to domestically sourced antimony feedstock and begin

reducing its reliance on third-party and foreign ore purchases. The Company restarted mining operations at Stibnite Hill in April 2026

after winter weather brought the previous year's campaign to a close in November 2025.

Commenting on the current mining operations at

Stibnite Hill, Montana, Mr. Joseph Bardswich, P.E., Executive Vice President and Chief Mining Engineer, stated “We continue to improve

our operations on Stibnite Hill by moving rock off the mountain over twice as fast as we did last year. Our contractors are becoming more

efficient and we are fortunate to be able to continue mining antimony within the vein systems we have been excavating. We anticipate accomplishing

similar results soon in Alaska.”

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., Mexico, and

Canada. The Company mines, purchases, and processes 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. Beginning in 2024 and continuing

in 2025, the Company acquired mining claims, real properties (patented claims) and leases located in Alaska, Montana, and Ontario,

Canada in an effort to reduce the cost of third-party antimony ore purchases and to expand 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

its Annual Report on Form 10-K and 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.

Investor Relations Contact:

Media Relations Contact:

Jonathan Miller, VP, Investor Relations

Anthony D. Andora

4438 W. Lovers Lane, Unit 100

Edge Consulting, Inc.

Dallas, Texas 75209

1560 Market Street, Ste. 701

E-Mail: Jmiller@usantimony.com

Denver, Colorado 80202

Phone: 406-606-4117

E-Mail: Anthony@EdgeConsultingSolutions.com

Phone: 720-317-8927

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