Zhengdao Announces Change in General Manager

1. Date of Board Resolution or Effective Date of Change: June 30, 2026 (R.O.C. Year 115) 2. Position (Please specify 'Chairman' or 'General Manager'): General Manager 3. Name of Former Executive: Luo Shiyi 4. Background of Former Executive: Former General Manager of the Company 5. Name of New Executive: Not applicable 6. Background of New Executive: Not applicable 7. Nature of Change (Please select from 'Resignation', 'Dismissal', 'End of Term', 'Job Reassignment', 'Redundancy', 'Retirement', 'Death', or 'New Appointment'): Retirement 8. Reason for Change: Retirement 9. Effective Date of New Appointment: Not applicable 10. Other Matters to be Disclosed: (1) Mr. Luo Shiyi, General Manager, retired on June 30, 2026. His responsibilities will be temporarily assumed by Deputy General Manager Cheng Ping-shan of the General Manager's Office starting July 1, 2026. (2) The appointment of the new General Manager will be announced separately after approval by the company's Board of Directors.