Imgho: Announcement of Personnel Change for Chief Operating Officer

1. Type of personnel change (please enter spokesperson, acting spokesperson, important operational executives (e.g., CEO, COO, CMO, CSO, etc.), financial officer, accounting officer, corporate governance officer, information security officer, R&D officer, internal audit officer, or litigation and non-litigation agent): Chief Operating Officer 2. Date of change: 115/05/13 (May 13, 2026) 3. Name, title, and brief resume of former incumbent: Lin Meng-Jie / Chief Operating Officer and Acting General Manager of the Company 4. Name, title, and brief resume of new incumbent: Wu Min-Lang / Vice General Manager / Executive Vice General Manager of Imgho Optoelectronics Kunshan Co., Ltd. 5. Type of change (please enter "resignation," "position adjustment," "layoff," "retirement," "death," "new appointment," or "dismissal"): Position adjustment 6. Reason for change: Position adjustment 7. Effective date: 115/05/13 (May 13, 2026) 8. Other matters to be specified: Mr. Lin Meng-Jie, who originally served as the Chief Operating Officer and Acting General Manager of the Company, has been reassigned as Vice General Manager and Acting General Manager effective from May 13, 2026. Keywords: Material Information