Feng Yuan-KY: Company's Corporate Governance Officer Appointment Ratified

1. Type of personnel change (Please enter Spokesperson, Acting Spokesperson, Important Operational Executive (e.g., CEO, COO, CMO, CSO, etc.), Financial Officer, Accounting Officer, Corporate Governance Officer, Information Security Officer, R&D Executive, Internal Audit Executive, or Litigation and Non-Litigation Agent): Corporate Governance Officer 2. Date of change: May 12, 2026 3. Name, position, and brief resume of former incumbent: None 4. Name, position, and brief resume of new incumbent: Chen Tzu-Wen 5. Reason for change (Please enter "Resignation", "Position Adjustment", "Layoff", "Retirement", "Death", "New Appointment" or "Dismissal"): New Appointment 6. Reason for change: New Appointment 7. Effective date: May 12, 2026 8. Other matters to be specified: The company had already announced a change in its Corporate Governance Officer on April 1, 2026, and the appointment was approved by the board of directors on May 12, 2026.