[Taiflex] Announcement of change in institutional director representative of important subsidiary Richstar CO., LTD.

1. Date of occurrence of the change: 2026/04/16 2. Name of legal person: Taiflex Scientific Co., Ltd. 3. Name of the previous position holder: Sun Ta-Wen 4. Resume of the previous position holder: Director of Richstar CO., LTD. 5. Name of the new position holder: Chen Yung-Heng 6. Resume of the new position holder: Chairman of Taiflex Scientific Co., Ltd. 7. Reason for the change: Reassignment of representative by the institutional director. 8. Original term (e.g. xx/xx/xx to xx/xx/xx): Not applicable 9. Effective date of the new appointment: 2026/04/16 10. Other matters to be stated: None