Announcement for the change of accounting officer and acting spokesperson

SEQ_NO

1

Date of announcement

2025/05/15

Time of announcement

17:16:17

Subject

Announcement for the change of accounting officer and acting spokesperson

To which
item it meet

sparagrap 8

Date of events

2025/05/15

Statement

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):
   accounting officer,acting spokesperson
2. Date of occurrence of the change:2025/05/15
3. Name, title, and resume of the previous position holder:
   accounting officer and acting spokesperson:Yen, Hsien-Ying / Accounting Supervisor
4. Name, title, and resume of the new position holder:
   Tsai,Cheng-Hsiung /Operation Management Center
   Vice President and Supervisor of Finance,corporate governance officer
5. Type of the change (please enter: ”resignation”, ”position adjustment”, ”retirement”
   , ”death”,”new replacement” or ”dismissal”):resignation
6. Reason for the change:resignation
7. Effective date:2025/05/15
8. Any other matters that need to be specified:
   The resolutions passed at the most recent board meeting will be reported accordingly.