OTHER INFORMATION.
−Removed: Third Restated Articles of Incorporation (incorporated by reference as Exhibit 3.1 to the Company’s current Report on Form 8-K filed with the SEC on August 5, 2024).
−Removed: First Restated Bylaws (incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed with the SEC on May 20, 2024).
−Removed: Contract between the Company and the U.S.
−Removed: Defense Logistics Agency (DLA) Strategic Materials, dated September 22, 2025 (Portions of this exhibit have been omitted pursuant to Item 601(b)(10) of Regulation S-K).
+Added: On March 23, 2026 , Michael A.
+Added: McManus , a member of the Company’s Board of Directors , adopted a Rule 10b5-1 trading plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Securities Exchange Act of 1934, as amended.
+Added: McManus’s plan covers the sale of up to 100,000 shares of the Company’s common stock between June 22, 2026 and December 31, 2026 , subject to earlier termination in accordance with its terms.
+Added: Transactions under the plan are based upon pre-established dates and stock price thresholds.
+Added: Certificate of Formation (incorporated by reference as Exhibit 3.1 to the Company’s Current Report on Form 8-K filed with the SEC on August 28, 2025).
+Added: Bylaws (incorporated by reference as Exhibit 3.2 to the Company’s Current Report on Form 8-K filed with the SEC on August 28, 2025).
Rule 15d-14(a) Certification by Principal Executive Officer.
2 unchanged sentences
Mine Safety Disclosure.
−Removed: Technical Report Summary per SEC S-K 1300 - Bear River Zeolite (incorporated by reference to Exhibit 96.1 to the Company’s Current Report on Form 8-K filed with the SEC on July 25, 2025)
+Added: Technical Report Summary and Initial Assessment on the Fostung Tungsten Property (incorporated by reference as Exhibit 99 to the Company’s Current Report on Form 8-K filed with the SEC on April 10, 2026).
Inline XBRL Instance Document.
8 unchanged sentences
UNITED STATES ANTIMONY CORPORATION
−Removed: November 12, 2025
Chairman of the Board and CEO
(principal executive officer)
−Removed: November 12, 2025
−Removed: /s/ Richard R.
−Removed: SVP and Chief Financial Officer
+Added: Interim Chief Financial Officer
(principal financial officer)
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.