Announced by CTBC Bank for the KO event of Hong Kong Branch USD Fixed Coupon Equity Linked Structured Notes total 7 issues

1.Date of occurrence of the event:2025/09/23
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,2nd,4th,6th,7th issue:According to the Pricing Supplement of
CTBC Bank Co., Ltd. Hong Kong Branch 12 Months USD Knock Out Fixed Coupon
Basket Equity Linked Structured Notes, CTBC Bank Hong Kong Branch repays
the Debentures due to the KO event.
3rd issue:According to the Pricing Supplement of CTBC Bank Co., Ltd.
Hong Kong Branch 7 Months USD Knock Out Fixed Coupon Basket Equity Linked
Structured Notes, CTBC Bank Hong Kong Branch repays
the Debentures due to the KO event.
5rd 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:XS3149167788
2nd issue:ISIN:XS3149165063
3rd issue:ISIN:XS3149166202
4th issue:ISIN:XS3149166467
5th issue:ISIN:XS3149166624
6th issue:ISIN:XS3149167432
7th issue:ISIN:XS3149182233