Announcement on behalf of the subsidiary CTBC Asia Limited. of the resignation of a director.

1.Date of occurrence of the change:2026/09/04
2.Name of legal person:CTBC Securities Co., Ltd.
3.Name of the previous position holder:CHUN HSIEN YEN
4.Resume of the previous position holder:Director of CTBC Asia Limited
5.Name of the new position holder:None
6.Resume of the new position holder:None
7.Reason for the change:Resignation
8.Original term (from __________ to __________):NA
9.Effective date of the new appointment:None
10.Any other matters that need to be specified:None