Announcement of the appointment of the 5th Board of CTBC Securities Investment Service Co., Ltd. on behalf of CTBC Securities.

1.Date of occurrence of the change:2026/05/12
2.Name of legal person:CTBC Securities Co., Ltd.
3.Name of the previous position holder:
Representative of CTBC Securities Co., Ltd.:Ming-Shan Lin
Representative of CTBC Securities Co., Ltd.:Yu-Tse Chang
Representative of CTBC Securities Co., Ltd.:Chuang-Kun Hsieh
Representative of CTBC Securities Co., Ltd.:Lun Kuo
4.Resume of the previous position holder:
Ming-Shan Lin：Chairman,CTBC Securities Investment Service Co., Ltd.
Yu-Tse Chang：Director,CTBC Securities Investment Service Co., Ltd.
Chuang-Kun Hsieh：Director,CTBC Securities Investment Service Co., Ltd.
Lun Kuo：Supervisor,CTBC Securities Investment Service Co., Ltd.
5.Name of the new position holder:
Representative of CTBC Securities Co., Ltd.:Ming-Shan Lin
Representative of CTBC Securities Co., Ltd.:Yu-Tse Chang
Representative of CTBC Securities Co., Ltd.:Chuang-Kun Hsieh
Representative of CTBC Securities Co., Ltd.:Chia-Fang Lai
6.Resume of the new position holder:
Ming-Shan Lin：Chairman,CTBC Securities Investment Service Co., Ltd.
Yu-Tse Chang：Director,CTBC Securities Investment Service Co., Ltd.
Chuang-Kun Hsieh：Director,CTBC Securities Investment Service Co., Ltd.
Chia-Fang Lai：Accounting Department Manager,Taiwan Life Insurance
Co., Ltd.
7.Reason for the change:term expired
8.Original term (from __________ to __________):2023/07/31-2026/07/30
9.Effective date of the new appointment:2026/05/19
10.Any other matters that need to be specified:None