1.Date of the resolution by the board of directors or shareholders’ meeting, or of the decision by the company:2022/07/04

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 dividend distribution:

Preferred share A cash dividend:NT$45,500,000(NT$2.5 per Preferred share A)

Common share cash dividend:NT$394,454,493(NT$3 per Common share)

4.Ex-rights (Ex-dividend) date:2022/08/02

5.Last date before book closure:2022/08/03

6.Book closure starting date:2022/08/04

7.Book closure ending date:2022/08/08

8.Ex-rights (Ex-dividend) record date:2022/08/08

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:2022/08/19

13.Any other matters that need to be specified:

(1)The chairman is authorized to make the adjustment and handle relevant amendment matters.

(2)The closed period for preferred share A are from 2022/07/14 to 2022/08/08.