【Yihua Electric】Announcement of Changes in Corporate Governance Officer and Internal Audit Officer

1. Type of personnel change (please enter spokesperson, acting spokesperson, important operational managers (e.g., CEO, COO, CMO, CSO, etc.), financial manager, accounting manager, corporate governance manager, information security officer, R&D manager, internal audit manager or litigation and non-litigation agent): Corporate Governance Officer, Internal Audit Officer 2. Date of change: 115/05/07 (May 7, 2026) 3. Name, position, and brief resume of former incumbent: (1) Corporate Governance Officer: Ke Sheng-tong / Assistant Vice President of Administration Department (2) Internal Audit Officer: Not applicable 4. Name, position, and brief resume of new incumbent: (1) Corporate Governance Officer: Yang Qian-yi / Manager of Finance Department (2) Internal Audit Officer: Lan Shu-mei / Acting Audit Agent 5. Nature of change (please enter "resignation," "job adjustment," "layoff," "retirement," "death," "new appointment," or "dismissal"): Job adjustment 6. Reason for change: Job adjustment 7. Effective date: 115/05/07 (May 7, 2026) 8. Other matters that should be stated: (1) The company announced a material information on March 31, 2026, regarding the change of the Internal Audit Officer. (2) The company's Audit Committee and Board of Directors resolved and approved the appointments of the Corporate Governance Officer and Internal Audit Officer on May 7, 2026.