[Winbond] Announcement of Changes in Audit Committee Members

1. Date of change: 2026/05/29 2. Name of functional committee: Audit Committee 3. Former members: Hsu Shan-ko, Tso Ta-chuan, Kuan Chung-ming, Lee Chung-pei 4. Former members' profiles: Hsu Shan-ko (Chairman, Etron Technology), Tso Ta-chuan (Independent Director, Power MOSFET Corp), Kuan Chung-ming (Professor, NTU), Lee Chung-pei (Chairman, Videoland) 5. New members: Chiang Shang-yi, Tso Ta-chuan, Kuan Chung-ming, Lee Chung-pei 6. New members' profiles: Chiang Shang-yi (Chairman, Shincell), Tso Ta-chuan (Independent Director, Power MOSFET Corp), Kuan Chung-ming (Professor, NTU), Lee Chung-pei (Chairman, Videoland) 7. Reason for change: Expiration of term 8. Cause of change: Full re-election of the board on 2026/05/29; the committee is now composed of newly elected independent directors. 9. Original term: 2023/05/30 ~ 2026/05/29 10. Effective date: 2026/05/29 11. Other: None