United States Antimony (UAMY) Proxy filing summary

Audit committee and external auditor matters

• Audit Committee initially appointed Assure CPA, LLC as independent registered public accounting firm for fiscal year ending December 31, 2026.

• Assure CPA, LLC was acquired by Sadler Gibb & Associates, LLC on June 3, 2026, resulting in a change of auditor.

• Audit Committee appointed Sadler Gibb as successor independent registered public accounting firm on June 5, 2026.

• Lead engagement partner and audit staff remain unchanged after the transition to Sadler Gibb.

• Shareholders are now asked to ratify Sadler Gibb's appointment for the 2026 fiscal year; proxies already submitted remain valid.

Voting matters and shareholder proposals

• Proposal No. 3 amended to reflect the appointment of Sadler Gibb as the independent auditor for 2026.

• Shareholders do not need to take action unless they wish to change their vote; prior proxies remain effective.

• Representatives of Sadler Gibb are expected to attend the Annual Meeting and may make a statement.

Board of directors and corporate governance

• Board recommendations on all proposals remain unchanged despite the auditor transition.

• Information on directors and executive officers participating in proxy solicitation is available in the Proxy Statement.