Announcement Board of Directors Meeting Resolutions on cash dividend ex-dividend date

Announcement Board of Directors Meeting Resolutions on
cash dividend ex-dividend date

1.Date of the resolution by the board of directors or shareholders meeting
  or decision by the Company:2026/02/11
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 dividend distribution:Cash dividend of
NT$400,291,618
4.Ex-rights (ex-dividend) trading date:2026/06/17
5.Last date before book closure:2026/06/21
6.Book closure starting date:2026/06/22
7.Book closure ending date:2026/06/26
8.Ex-rights (ex-dividend) record date:2026/06/26
9.Any other matters that need to be specified:
Cash dividends payment date:2026/07/15