1.Date of the resolution by the board of directors or shareholders’ meeting, or of the decision by the company:2026/05/27

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 to common shareholders NT$100,219,145(NT$2.61 per share)

4.Ex-rights (Ex-dividend) date:2026/06/12

5.Last date before book closure:2026/06/15

6.Book closure starting date:2026/06/16

7.Book closure ending date:2026/06/20

8.Ex-rights (Ex-dividend) record date:2026/06/20

9.Deadline for applying the conversion of the debt voucher:NA.

10.The closure period for the conversion of the debt voucher will start from the date:NA.

11.The closure period for the conversion of the debt voucher will end on the date:NA.

12.Payment date of common stock cash dividend distribution:2026/07/10

13.Any other matters that need to be specified:None.