Uni-Ally Metal Co., Ltd. Announces Elected Supervisor List for Significant Subsidiary Uni-Ally Advanced Materials Co., Ltd.

1. Date of change: 2026/04/24 2. Type of personnel selected or changed (please enter legal entity director, legal entity supervisor, independent director, natural person director, or natural person supervisor): Natural person supervisor 3. Title and name of former incumbent: Natural person supervisor: Liao, Pei-Fen 4. Brief resume of former incumbent: Natural person supervisor: Liao, Pei-Fen / CFO, Uni-Ally Metal Technology Co., Ltd. 5. Title and name of new incumbent: Natural person supervisor: Huang, Yen-Chih 6. Brief resume of new incumbent: Natural person supervisor: Huang, Yen-Chih / Production Associate Manager, Uni-Ally Metal Technology Co., Ltd. 7. Type of change (please enter 'resignation', 'dismissal', 'term expiration', 'death', or 'new appointment'): New appointment 8. Reason for change: By-election for one supervisor position 9. Shareholding of new incumbent at time of election: Natural person supervisor: Huang, Yen-Chih: 76,000 shares 10. Original term of office (e.g., xx/xx/xx ~ xx/xx/xx): 2026/01/16~2029/01/16 11. Effective date of new appointment: 2026/04/24 12. Percentage change in directors during the same term: 0% 13. Percentage change in independent directors during the same term: Not applicable 14. Percentage change in supervisors during the same term: 100% 15. Whether more than one-third of directors have changed (please enter Yes or No): No 16. Other matters that need to be specified (If the entity involved in the event or resolution is a publicly issued company or above, this material information simultaneously complies with Article 7, Paragraph 6 of the Enforcement Rules of the Securities and Exchange Act, which stipulates matters that have a material impact on shareholders' equity or securities prices): None.