Announcement of the record date for cash dividend

 Announcement of the record date for
cash dividend

1.Date of the resolution by the board of directors or
shareholders’ meeting, or of the decision by the company:2026/03/16
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:
 Cash dividends:NT$167,706,000.(NT$4.2 per share)
4.Ex-rights (Ex-dividend) date:2026/04/23
5.Last date before book closure:2026/04/24
6.Book closure starting date:2026/04/25
7.Book closure ending date:2026/04/29
8.Ex-rights (Ex-dividend) record date:2026/04/29
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:2026/05/14
13.Any other matters that need to be specified:
(1)Cash dividends are calculated up to New Taiwan Dollar and rounded up
   below New Taiwan Dollar.
(2)Taiwan Depository & Clearing Corporation has been appointed to handle
   the electronic notification of the dividend payment. Shareholders are
   requested to register on the eNotice platform of the “Shareholders' e
   Service”of the Taiwan Depository & Clearing Corporation
   (https://stockservices.tdcc.com.tw) one business day prior to the
   commencement date of the ex-dividend cessation (i.e.2026/04/23) to
   agree to receive eNotices,so that shareholders can receive dividend
   payment notices via the email address they have provided.
   (For shareholders who agree after 2026/04/24, the next dividend
   payment eNotice will apply).