Tung Ni Announces Board Resolution to Appoint New Members of the Sustainability Committee

1. Date of Change: 2026/06/22 2. Name of Functional Committee: Sustainability Committee 3. Former Members: Chen Guan-Hua Yang Wen-Zai Ye Jin-Bao 4. Former Members' Profiles: Chen Guan-Hua: Vice Chairman of the Company Yang Wen-Zai: Independent Director of the Company Ye Jin-Bao: Independent Director of the Company 5. New Members: Chen Guan-Hua Xin Chun-Hao Zhou Guang-Zhou 6. New Members' Profiles: Chen Guan-Hua: Vice Chairman of the Company Xin Chun-Hao: Independent Director of the Company Zhou Guang-Zhou: Independent Director of the Company 7. Nature of Change (Please enter 'Resignation', 'Dismissal', 'End of Term', 'Deceased', or 'New Appointment'): End of Term 8. Reason for Change: In conjunction with the expiration of directors' term and subsequent re-election. 9. Original Term (e.g., xx/xx/xx ~ xx/xx/xx): 2024/05/10 ~ 2026/06/20 10. Effective Date of New Appointment: 2026/06/22 11. Other Matters to be Disclosed: None.