1.Date of the resolution by the board of directors or shareholders' meeting or decision by the Company:2026/05/15

2.Type of ex-rights or ex-dividend (please enter: “Ex-rights”,”Ex-dividend”, or ”Ex-rights and dividend”):Ex-rights and dividend

3.Type and monetary amount of dividend distribution: Cash dividends to common shareholders NT$22,315,500 Stock dividends to common shareholders NT$7,438,500

4.Ex-rights (ex-dividend) trading date:2026/05/25

5.Last date before book closure:2026/05/26

6.Book closure starting date:2026/05/27

7.Book closure ending date:2026/05/31

8.Ex-rights (ex-dividend) record date:2026/05/31

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 cash dividend distribution:2026/08/25

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