Announcement on behalf of CTBC Bank of penalty imposed by the FSC

1.Date of occurrence of the event：2025/12/09
2.The subject of the incident：report on behalf of subsidiaries：CTBC Bank
3.Cause of occurrence (Explanation of the event)：CTBC Bank was found to have deficiencies arising from employees’ improper
access to customer’s personal data, in violation of the Banking Act and the
“Implementation Rules of Internal Audit and Internal Control System of 
Financial Holding Companies and Banking Industries” promulgated under 
its authority. In accordance with Article 129, Subparagraph 7 of the 
Banking Act, an administrative fine of NT$2,000,000 has been imposed.
4.Handling procedure：The improvement plan will handle in accordance with the competent 
authority’s advice.
5.Status of the injunction by the respective competent authority：The amount of fine is NT$2000000.
6.Whether being fined or penalized：Yes
7.Administrative fines(amount)：NTD 2,000,000 元
8.Anticipated possible loss or impact：NT$2000000
9.Amount of insurance claims that might be obtained(amount)：None
10.Improvement status and future countermeasures：CTBC Bank will adjust related procedures and improve control 
system based on the FSC's instructions.
11.Whether material information regarding the same event has been previously released：None
12.Any other matters that need to be specified：None