CTBC Holding on behalf of subsidiary CTBC Securities Co., Ltd. Announcement of amendment to portions of the Company's 2025 annual report

1.Date of occurrence of the event:2026/09/09
2.Company name:CTBC Securities Co., Ltd.
3.Relationship with the Company (please enter ”the company itself”
or ”subsidiaries”):subsidiaries
4.Reciprocal shareholding percentage:100%
5.Cause of occurrence:Amendments to portions of the Company's 2025 Annual
Report in accordance with the instructions of the Taiwan Stock Exchange
6.Information items/ statements to be corrected:2025 annual report
7.Amounts/ contents/ number of page to be corrected:Chinese Version:Page 91
8.Amounts/ contents/ number of page after correction:Chinese Version:Page 91
9.Countermeasures:Publish material information and re-upload the
revised 2025 Annual Report to Market observation Post System.
10.Any other matters that need to be specified:none