Announcement of the record date for the distribution of 2025 cash dividends on preferred shares

1.Date of the resolution by the board of directors or shareholders meeting
  or decision by the Company:2026/06/24
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 preferred stock dividend distribution:
  (1)Cash dividends on Preferred Shares B: The total cash dividend
     distribution amount is NT$931,990,680, representing a cash dividend of
     NT$2.796 per share.
  (2)Cash dividends on Preferred Shares C: The total cash dividend
     distribution amount is NT$319,987,200, representing a cash dividend of
     NT$1.92 per share.
4.Ex-rights (ex-dividend) trading date:2026/07/10
5.Last date before book closure:2026/07/13
6.Book closure starting date:2026/07/14
7.Book closure ending date:2026/07/18
8.Ex-rights (ex-dividend) record date:2026/07/18
9.Deadline for applying the conversion of the
preferred stock:NA
10.The closure period for the conversion of the preferred stock
will start from the date:NA
11.The closure period for the conversion of the
preferred stock will end on the date:NA
12.Payment date of preferred stock cash dividend distribution:2026/08/07
13.Any other matters that need to be specified:None