Datong Hsin Chuang Announces Third Audit Committee Members and Elected Convener

Release Date: June 24, 2026 Statement Date: June 23, 2026 Statement Time: 16:08:59 Company Code: 1470 Company Name: Datong Hsin Chuang Subject: Announcement of the Third Audit Committee Members and Election of the Convener Applicable Clause: Item 6 Event Date: June 23, 2026

Details: 1. Date of Change: 06/23/2026 2. Functional Committee Name: Audit Committee 3. Former Members: (1) Fu-Nan Chou (2) Wu-Chung Liao (3) Hsin-Yi Huang (4) Tsung-Wen Shih 4. Former Members' Background: (1) Fu-Nan Chou / Chairman, Lun Hsin Industrial Co., Ltd. (2) Wu-Chung Liao / Chairman, Feng Wei Fiber Co., Ltd. (3) Hsin-Yi Huang / Senior Vice President, Nan Ya Plastics Corporation (4) Tsung-Wen Shih / Advisor, Nan Ya Plastics Corporation 5. New Members: (1) Tsung-Wen Shih (2) Hsin-Yi Huang (3) Chun-Yi Chen (4) Yuan-Liang Tai 6. New Members' Background: (1) Tsung-Wen Shih / Independent Director, Datong Hsin Chuang; Advisor, Nan Ya Plastics Corporation (2) Hsin-Yi Huang / Independent Director, Datong Hsin Chuang; Senior Vice President, Nan Ya Plastics Corporation (3) Chun-Yi Chen / Independent Director, Datong Hsin Chuang; General Manager, Sheng Qi Green Energy Co., Ltd. (4) Yuan-Liang Tai / Independent Director, Datong Hsin Chuang; Technology Manager, Industrial Technology Research Institute (ITRI) 7. Nature of Change: End of Term 8. Reason for Change: Regular re-election upon term expiration 9. Previous Term: 06/27/2023 ~ 06/26/2026 10. Effective Date of New Appointment: 06/23/2026 11. Additional Notes: The third Audit Committee of the Company has elected Independent Director Tsung-Wen Shih as its convener.