Dahua Announces Appointment of Second Sustainability Committee Members

1. Date of Change: 2026/06/24 2. Name of Functional Committee: Sustainability Committee 3. Former Members: Huang Wen-Jung, Lin Teng-Jung, Chiang Ming-Li 4. Former Members' Backgrounds: Huang Wen-Jung: Independent Director, Dahua Metal Industries Co., Ltd. Lin Teng-Jung: Independent Director, Dahua Metal Industries Co., Ltd. Chiang Ming-Li: Chairman, Dahua Metal Industries Co., Ltd. 5. New Members: Chao Chun-Man, Chiang Chia-Chun, Han Ta-Peng 6. New Members' Backgrounds: Chao Chun-Man: Director, Dahua Metal Industries Co., Ltd. Chiang Chia-Chun: Chairman, Dahua Metal Industries Co., Ltd. Han Ta-Peng: Manager, Planning Department, Dahua Metal Industries Co., Ltd. 7. Nature of Change (select from 'resignation', 'dismissal', 'end of term', 'deceased', or 'new appointment'): New Appointment 8. Reason for Change: Appointed by the Board of Directors 9. Previous Term (e.g., xx/xx/xx ~ xx/xx/xx): 2024/04/30 ~ 2026/06/18 10. Effective Date of New Appointment: 2026/06/24 11. Other Matters to be Disclosed: None