CTBC Holding replaces subsidiary CTBC Securities Co. Ltd. Announcement Correction Endorsement Guarantee Information Disclosure Detailed List for June 2024.

1.Date of occurrence of the event:2024/07/26

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:Corrected the limit of CTBC Securities Co. Ltd.

endorsement guarantee for a single enterprise in June 2024.

6.Information items/ statements to be corrected:

Endorsement Guarantee Information Disclosure Details in June 2024.

7.Amounts/ contents/ number of page to be corrected:

In June 2024, the limit of CTBC Securities Co. Ltd.'s single corporate

endorsement guarantee for its subsidiary CTBC Asia Limited is NT$645,004,000.

8.Amounts/ contents/ number of page after correction:

In June 2024, the limit of CTBC Securities Co. Ltd.'s single corporate

endorsement guarantee for its subsidiary CTBC Asia Limited is NT$615,004,000.

9.Countermeasures:Publish major news announcements and re-upload corrected

endorsement guarantee-related information.

10.Any other matters that need to be specified:none