Chaintex Announces Appointment of Second Audit Committee Members

1. Date of Change: 2026/06/22 2. Name of Functional Committee: Audit Committee 3. Former Member Name: None 4. Former Member Resume: None 5. New Member Name: Wang Chi-Liang 6. New Member Resume: Wang Chi-Liang: Director and General Manager, Huan-Fu Sustainable Systems Co., Ltd. 7. Nature of Change (please enter 'resignation', 'dismissal', 'end of term', 'deceased', or 'new appointment'): New Appointment 8. Reason for Change: Supplementary Election 9. Original Term (e.g., xx/xx/xx ~ xx/xx/xx): 2025/06/06 ~ 2028/06/06 10. Effective Date of New Appointment: 2026/06/22 11. Other Matters to be Stated: Independent Director Wang Ming-Zhi has been elected as the convener of the Audit Committee.