1.   Date of the resolution by the board of directors or shareholders meeting or decision by the Company:

     2026/07/02

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 common stock dividend distribution:

     Cash dividend of NT$173,203,224 (NT$1 per share)

4.   Ex-rights (ex-dividend) trading date: 2026/07/20

5.   Last date before book closure: 2026/07/21

6.   Book closure starting date: 2026/07/22

7.   Book closure ending date: 2026/07/26

8.   Ex-rights (ex-dividend) record date: 2026/07/26

9.   Deadline for applying the conversion of the bond: NA

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

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

12. Payment date of common stock cash dividend distribution: 2026/08/14

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