1.Date of the resolution by the board of directors or
shareholders’ meeting, or of the decision by the company:2026/05/29
2.Type (ex-rights or ex-dividend) (please write ”Ex-rights”,
 ”Ex-dividend”, or ”Ex-rights and dividend”):Ex-dividend
3.Type and monetary amount of common stock dividend distribution:
(1)Original dividend type and amount:
   Cash dividend: NT$229,735,994; cash dividend per share: NT$2.00
(2)Revised dividend type and amount:
   Cash dividend: NT$229,735,994; cash dividend per share: NT$2.05466318
4.Ex-rights (Ex-dividend) date:2026/06/15
5.Last date before book closure:2026/06/16
6.Book closure starting date:2026/06/17
7.Book closure ending date:2026/06/21
8.Ex-rights (Ex-dividend) record date:2026/06/21
9.Deadline for applying the conversion of the debt voucher:N/A
10.The closure period for the conversion of the debt voucher will
 start from the date:N/A
11.The closure period for the conversion of the debt voucher will
end on the date:N/A
12.Payment date of common stock cash dividend distribution:2026/07/14
13.Any other matters that need to be specified:
Due to the repurchase of treasury shares by the Company, the number of
outstanding shares has changed. In accordance with the resolution of
the Board of Directors on March 12, 2026, the Chairman was authorized
to adjust the cash dividend payout ratio.