Form 8-K

8-K — UNITED STATES ANTIMONY CORP

Accession: 0001104659-26-071104

Filed: 2026-06-08

Period: 2026-06-03

CIK: 0000101538

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

Item: Changes in Registrant's Certifying Accountant

Item: Financial Statements and Exhibits

Documents

8-K — tm2617046d1_8k.htm (Primary)

EX-16.1 — EXHIBIT 16.1 (tm2617046d1_ex16-1.htm)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K — FORM 8-K

8-K (Primary)

Filename: tm2617046d1_8k.htm · Sequence: 1

false

0000101538

2026-06-03

0000101538

UAMY:CommonStockOneMember

2026-06-03

0000101538

UAMY:CommonStockTwoMember

2026-06-03

iso4217:USD

xbrli:shares

iso4217:USD

xbrli:shares

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)

June 3, 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 4.01 Changes in Registrant’s Certifying

Accountant.

(a) Dismissal / resignation of previous

independent registered public accounting firm.

As previously disclosed, Assure CPA, LLC (“Assure”)

served as the independent registered public accounting firm of United States Antimony Corporation (the “Company”). On June 3,

2026, Assure combined its practice with, and was acquired by, Sadler Gibb & Associates, LLC (“Sadler Gibb”) (the

“Transaction”). As a result of the Transaction, effective June 3, 2026, Assure effectively resigned and ceased to serve

as the Company’s independent registered public accounting firm, and the Company engaged Sadler Gibb as its independent registered

public accounting firm. The decision to change the Company’s independent registered public accounting firm was approved by the Audit

Committee of the Board of Directors of the Company and concurred in and approved by the Board of Directors, on June 5, 2026.

The audit reports of Assure on the Company’s

consolidated financial statements as of and for the fiscal years ended December 31, 2025 and December 31, 2024 did not contain

an adverse opinion or a disclaimer of opinion, and were not qualified or modified as to uncertainty, audit scope or accounting principles.

During the fiscal years ended 2025 and 2024 and

the subsequent interim period through June 3, 2026, there were (i) no disagreements (within the meaning of Item 304(a)(1)(iv) of

Regulation S-K and the related instructions) between the Company and Assure on any matter of accounting principles or practices, financial

statement disclosure, or auditing scope or procedure, which disagreements, if not resolved to Assure’s satisfaction, would have

caused Assure to make reference to the subject matter of the disagreement(s) in connection with its reports, and (ii) no “reportable

events” within the meaning of Item 304(a)(1)(v) of Regulation S-K.

The Company has provided Assure with a copy of

the disclosures in this Current Report on Form 8-K and has requested that Assure furnish a letter addressed to the Securities and

Exchange Commission stating whether it agrees with the statements made by the Company in this Item 4.01 and, if not, stating the respects

in which it does not agree. A copy of Assure’s letter, dated June 5, 2026, is filed as Exhibit 16.1 to this Current Report

on Form 8-K.

(b) Engagement of new independent registered

public accounting firm.

As described above, effective June 5, 2026,

the Company engaged Sadler Gibb as its independent registered public accounting firm for the fiscal year ending December 31, 2026.

The engagement of Sadler Gibb was approved by the Audit Committee and the Board of Directors of the Company. In connection with the Transaction,

the lead engagement partner and the professional staff principally responsible for the Company’s prior annual audits have continued

with Sadler Gibb and remain unchanged.

During the fiscal years ended 2025 and 2024 and

the subsequent interim period through June 3, 2026, neither the Company nor anyone acting on its behalf consulted with Sadler Gibb

prior to the date of the Transaction regarding (i) the application of accounting principles to a specified transaction, either completed

or proposed, or the type of audit opinion that might be rendered on the Company’s financial statements, and neither a written report

nor oral advice was provided to the Company by Sadler Gibb that Sadler Gibb concluded was an important factor considered by the Company

in reaching a decision as to any accounting, auditing or financial reporting issue, or (ii) any matter that was either the subject

of a disagreement (within the meaning of Item 304(a)(1)(iv) of Regulation S-K) or a reportable event (within the meaning of Item

304(a)(1)(v) of Regulation S-K).

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.

Description

16.1

Letter from Assure CPA, LLC dated June 5, 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: June 8, 2026

By:

/s/ Gary C. Evans

Gary C. Evans

Chairman and Chief Executive Officer

EX-16.1 — EXHIBIT 16.1

EX-16.1

Filename: tm2617046d1_ex16-1.htm · Sequence: 2

EXHIBIT 16.1

June 5, 2026

Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

Ladies and Gentlemen:

We have read the statements made by United States

Antimony Corporation under Item 4.01 of its Current Report on Form 8-K dated June 3, 2026, and we agree with the statements

concerning our firm contained therein.

Very truly yours,

/s/ Assure CPA, LLC

Assure CPA, LLC

Spokane, Washington

XML — IDEA: XBRL DOCUMENT

XML

Filename: R1.htm · Sequence: 8

v3.26.1

Cover

Jun. 03, 2026

Document Type

8-K

Amendment Flag

false

Document Period End Date

Jun. 03, 2026

Entity File Number

001-08675

Entity Registrant Name

UNITED

STATES ANTIMONY CORPORATION

Entity Central Index Key

0000101538

Entity Tax Identification Number

81-0305822

Entity Incorporation, State or Country Code

Entity Address, Address Line One

4438

W. Lovers Lane

Entity Address, Address Line Two

Unit

100

Entity Address, City or Town

Dallas

Entity Address, State or Province

Entity Address, Postal Zip Code

75209

City Area Code

406

Local Phone Number

606-4117

Written Communications

false

Soliciting Material

false

Pre-commencement Tender Offer

false

Pre-commencement Issuer Tender Offer

false

Entity Emerging Growth Company

false

Common Stock One [Member]

Title of 12(b) Security

Common

Stock, $0.01 par value

Trading Symbol

UAMY

Security Exchange Name

NYSE

Common Stock Two [Member]

Title of 12(b) Security

Common

Stock, $0.01 par value

Trading Symbol

UAMY

Security Exchange Name

NYSE

- Definition

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

+ References

No definition available.

+ Details

Name:

dei_AmendmentFlag

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Area code of city

+ References

No definition available.

+ Details

Name:

dei_CityAreaCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

+ Details

Name:

dei_DocumentPeriodEndDate

Namespace Prefix:

dei_

Data Type:

xbrli:dateItemType

Balance Type:

Period Type:

duration

- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:

dei_DocumentType

Namespace Prefix:

dei_

Data Type:

dei:submissionTypeItemType

Balance Type:

Period Type:

duration

- Definition

Address Line 1 such as Attn, Building Name, Street Name

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine1

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Address Line 2 such as Street or Suite number

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine2

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Code for the postal or zip code

+ References

No definition available.

+ Details

Name:

dei_EntityAddressPostalZipCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

Period Type:

duration

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityCentralIndexKey

Namespace Prefix:

dei_

Data Type:

dei:centralIndexKeyItemType

Balance Type:

Period Type:

duration

- Definition

Indicate if registrant meets the emerging growth company criteria.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityEmergingGrowthCompany

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

Name:

dei_EntityFileNumber

Namespace Prefix:

dei_

Data Type:

dei:fileNumberItemType

Balance Type:

Period Type:

duration

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:

dei_EntityIncorporationStateCountryCode

Namespace Prefix:

dei_

Data Type:

dei:edgarStateCountryItemType

Balance Type:

Period Type:

duration

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityRegistrantName

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityTaxIdentificationNumber

Namespace Prefix:

dei_

Data Type:

dei:employerIdItemType

Balance Type:

Period Type:

duration

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

Name:

dei_PreCommencementIssuerTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

Name:

dei_PreCommencementTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Title of a 12(b) registered security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

+ Details

Name:

dei_Security12bTitle

Namespace Prefix:

dei_

Data Type:

dei:securityTitleItemType

Balance Type:

Period Type:

duration

- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

+ Details

Name:

dei_SecurityExchangeName

Namespace Prefix:

dei_

Data Type:

dei:edgarExchangeCodeItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

+ Details

Name:

dei_SolicitingMaterial

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:

dei_TradingSymbol

Namespace Prefix:

dei_

Data Type:

dei:tradingSymbolItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

+ Details

Name:

dei_WrittenCommunications

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Details

Name:

us-gaap_StatementClassOfStockAxis=UAMY_CommonStockOneMember

Namespace Prefix:

Data Type:

Balance Type:

Period Type:

- Details

Name:

us-gaap_StatementClassOfStockAxis=UAMY_CommonStockTwoMember

Namespace Prefix:

Data Type:

Balance Type:

Period Type: