Announcement of the record date for distribution of cash dividend.

1.Date of the resolution by the board of directors or shareholders meeting or decision by the
 Company:2025/06/25
2.Type of ex-rights or ex-dividend (please enter: “Ex-rights”, ”Ex-dividend”, or ”Ex-rights and dividend”):
 Ex-dividend
3.Type and monetary amount of common stock dividend distribution:Cash dividend of NT$1.3- for per share.
4.Ex-rights (ex-dividend) trading date:2025/07/11
5.Last date before book closure:2025/07/14
6.Book closure starting date:2025/07/15
7.Book closure ending date:2025/07/19
8.Ex-rights (ex-dividend) record date:2025/07/19
9.Deadline for applying the conversion of the bond:N/A
10.The closure period for the conversion of the bond will start from the date:N/A
11.The closure period for the conversion of the bond will end on the date:N/A
12.Payment date of common stock cash dividend distribution:2025/08/15
13.Any other matters that need to be specified:None