Announced by CTBC Bank for the KO event of Hong Kong Branch 9 Months USD Knock Out Fixed Coupon Basket Equity Linked Structured Notes

1.Date of occurrence of the event: 2025/06/10

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 Pricing Supplement of

CTBC Bank Co., Ltd. Hong Kong Branch 9 Months USD Knock Out Fixed Coupon

Basket Equity Linked Structured Notes, CTBC Bank Hong Kong Branch 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.):

ISIN:XS3016245733。