Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements
Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. Chief Financial Officer Transition As previously reported, on May 4, 2026, Shawn P. Winkler was appointed as the Interim Chief Financial Officer of United States Antimony Corporation (the “Company”).…
Filed Oct 2, 2026Accepted Oct 2, 2026, 7:00 AM EDTCIK 101538Accession 0001104659-26-113034
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. From 2024 through 2026, the Company has acquired mining claims, real properties (patented claims), and leases located in Alaska, Montana, and Ontario, Canada - including the Radersburg flotation mill acquired in the first quarter of 2026 - to reduce the cost of third-party
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Item 5.02Item 5.02 - Departure/Election of Directors
Item 5.02. Departure of Directors or Certain Officers;
Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
Chief Financial Officer Transition
As previously reported, on May 4, 2026, Shawn
P. Winkler was appointed as the Interim Chief Financial Officer of United States Antimony Corporation (the “Company”). Effective
as of September 30, 2026 (the “Effective Date”), the Board has appointed Mr. Winkler as Senior Vice President and Chief Financial
Officer of the Company on a permanent basis. In connection with the appointment, Richard R. Isaak will cease to be the Senior Vice President
and Chief Financial Officer of the Company as of the Effective Date. In addition, the Board terminated Mr. Isaak’s employment
with the Company, without cause, effective as of the Effective Date. Mr. Isaak’s termination was not related to the Company’s
financial or operating results or to any disagreements or concerns regarding the Company’s financial or reporting practices. The
Company thanks Mr. Isaak for his service and contributions to the Company.
Prior to joining the Company, Mr. Winkler served
as Chief Financial Officer of Burrow Global, a Texas-based full-service engineering, procurement, and construction firm serving the energy
industry. Before his tenure at Burrow Global, Mr. Winkler spent 15 years as an investment banker at BMO Capital Markets and Deutsche Bank
Securities, advising public and private clients in the natural resources sector on more than $10 billion of M&A transactions. He led
capital raises across the full capital structure including IPOs, follow-on equity, high-yield and convertible notes, bank and institutional
loans, and acquisition financing. Mr. Winkler holds an MBA from Rice University’s Jones Graduate School of Management, where he
was named a Jones Scholar, and a Bachelor of Arts in Economics, Managerial Studies, and Policy Studies, also from Rice University.
There are no arrangements or understandings between
Mr. Winkler and any other persons pursuant to which he was appointed as Chief Financial Officer of the Company. There are no family relationships
between Mr. Winkler and any director or executive officer of the Company, and there are no transactions between Mr. Winkler and the Company
that would be reportable under Item 404(a) of Regulation S-K.