Announced by CTBC Bank for the KO event of Hong Kong Branch USD Fixed Coupon Equity Linked Structured Notes total 3 issues

1.Date of occurrence of the event:2025/10/03

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:

1st,3rd issue:According to the Pricing Supplement of CTBC Bank Co., Ltd.

Hong Kong Branch 3 Months USD Knock Out Fixed Coupon Basket Equity Linked

Structured Notes, CTBC Bank Hong Kong Branch repays the

Debentures due to the KO event.

2nd issue:According to the Pricing Supplement of CTBC Bank Co., Ltd.

Hong Kong Branch 6 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.):

1st issue:ISIN:XS3108436109

2nd issue:ISIN:XS3166235492

3rd issue:ISIN:XS3167367856