CTBC Board of Directors approved the cancelling of the issued restricted employee stock units

1.Date of the board of directors resolution:2025/08/22
2.Reason for capital reduction:The employees who has been allocated
restricted employee stock units did not fulfill the vesting conditions.
Therefore, the allotted restricted employee stock units are forfeited
and cancelled by the Company.
3.Amount of capital reduction:NTD6,147,210
4.Cancelled shares:614,721 shares
5.Capital reduction percentage:0.0031%
6.Share capital after capital reduction:NTD201,497,561,140
7.Scheduled date of the shareholders meeting:N/A
8.Estimated no.of listed common shares after issuance of new shares
upon capital reduction:N/A
9.Estimated ratio of listed common shares after issuance of new shares upon
capital reduction to outstanding common shares:N/A
10.Please explain any countermeasures for lower circulation in
shareholding if the aforesaid estimated no.of listed common shares upon
capital reduction does not reach 60 million and the percentage does not
reach 25%:N/A
11.The record date for capital reduction:2025/08/25
12.Any other matters that need to be specified:The record date for capital
reduction is 2025/08/25. In the event of a change to the record date due
to the actual procedure, it is proposed that the chairman of the board
make the adjustment under the authorization of the board of directors.