【Cheng Tai】Announcement of Board Approval for Change of Acting Spokesperson

1. Type of personnel change (Please enter spokesperson, acting spokesperson, important operational executive (e.g., CEO, COO, CMO, CSO), financial officer, accounting officer, corporate governance officer, information security officer, R&D executive, internal audit executive or litigation and non-litigation agent): Acting Spokesperson 2. Date of change: 2026/05/07 3. Name, rank, and brief resume of former incumbent: Lin Mei-Hsing, Section Chief of Finance Department 4. Name, rank, and brief resume of new incumbent: Lin Chia-Hua, Section Chief of Finance Department 5. Details of change (Please enter 'resignation', 'position adjustment', 'layoff', 'retirement', 'death', 'new appointment' or 'removal'): New Appointment 6. Reason for change: New Appointment 7. Effective date: 2026/05/07 8. Other matters that should be specified: None