Dah Hsin Engineering Announces Change of General Manager

1. Date of Board Resolution or Change: 2026/07/20 2. Position (Please enter Chairman or General Manager): General Manager 3. Former Name: Hsieh Tien-Ho 4. Former Resume: Acting General Manager of Dah Hsin Engineering Co., Ltd. 5. New Name: Pan Ming-Kuan 6. New Resume: Acting General Manager of Dah Hsin Engineering Co., Ltd. 7. Nature of Change (Please enter 'Resignation', 'Dismissal', 'End of Term', 'Role Adjustment', 'Redundancy', 'Retirement', 'Deceased', or 'New Appointment'): Role Adjustment 8. Reason for Change: Role Adjustment 9. Effective Date of New Appointment: 2026/07/20 10. Other Matters to be Disclosed (If the subject is a publicly listed company, this significant information also meets Article 7, Paragraph 6 of the Enforcement Rules of the Securities and Exchange Act regarding matters significantly affecting shareholders' rights or securities prices): None

Keywords: Significant Information