Announced by CTBC Bank for the KO event of 2023 4th Senior Unsecured 7 Months USD KO Basket Linked Fixed Coupon Non-Principal Guaranteed Financial Debentures

1.Date of occurrence of the event:2023/12/20
2.Company name:CTBC Bank Co., Ltd. (“CTBC Bank”)
3.Relationship to the Company (please enter ”head office” or
  ”subsidiaries”):subsidiaries
4.Reciprocal shareholding ratios:100% held by CTBC Financial Holding Co., Ltd.
5.Cause of occurrence:According to the Terms and Conditions of 2023 4th
Senior Unsecured 7 Months USD KO Basket Linked Fixed Coupon Non-Principal
Guaranteed Financial Debentures, CTBC Bank repays the Debentures due to
the KO event.
6.Countermeasures:None
7.Any other matters that need to be specified (the information disclosure
  also meets the requirements of Article 7, subparagraph 9 of the Securities
  and Exchange Act Enforcement Rules, which brings forth a significant impact
  on shareholders rights or the price of the securities on public companies.):
CTBC Bank will repay the Debentures on the KO event Payment Date according to
the Terms and Conditions of the Debentures. Relevant information will be
posted on M.O.P.S. website (Bond Market Information Section).