Announcement of Change of Financial Officer

1.Type of personnel changed (please enter: spokesperson, acting spokesperson, important personnel (CEO, COO, CMO, CSO, etc.) ,financial officer, accounting officer, corporate governance officer, chief information security officer, research and development officer, chief internal auditor, or designated and non-designated representatives):Financial Officer

2.Date of occurrence of the change:2026/04/10

3.Name, title, and resume of the previous position holder:CHEN YU CHUAN, Deputy General Manager of Finance Management Division.

4.Name, title, and resume of the new position holder:CHEN CHAO CHIH, Accounting Officer

5.Type of the change (please enter: ”resignation”, ”position adjustment”, ”retirement”, ”death”,”new replacement” or ”dismissal”):Position Adjustment

6.Reason for the change:Position Adjustment

7.Effective date:2026/04/10

8.Any other matters that need to be specified:The appointment of the new position holder will be announced upon approval by the Board of Directors.