TTET Union Corporation announced the change of Chief internal auditor. Name, title, and resume of the previous position holder: Chen Guan-Chou, Chief Internal Auditor. Name, title, and resume of the new position holder: Lee Shih-Ya, Financial Assistant Manager and Accounting Assistant Manager.

Reason for the change: position adjustment. Effective date: June 1, 2023. Date of occurrence of the change: May 4, 2023.