Announcement of the ex-dividend base date of the Company and the period of cessation of conversion of convertible corporate bonds.

 Announcement of the ex-dividend base date of the
Company and the period of cessation of conversion of
convertible corporate bonds.

1.Date of the resolution by the board of directors or
shareholders' meeting, or of the decision by the company:2022/06/23
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:Cash dividends of
 NT$233,756,955.
4.Ex-rights (Ex-dividend) date:2022/07/22
5.Last date before book closure:2022/07/25
6.Book closure starting date:2022/07/26
7.Book closure ending date:2022/07/30
8.Ex-rights (Ex-dividend) record date:2022/07/30
9.Deadline for applying the conversion of the debt voucher:2022/07/01
10.The closure period for the conversion of the debt voucher will
 start from the date:2022/07/05
11.The closure period for the conversion of the debt voucher will
end on the date:2022/07/30
12.Payment date of cash dividend distribution:2022/08/24
13.Any other matters that need to be specified:
 (1)The period of cessation of conversion of the Company's third domestic
    unsecured convertible corporate bonds:2022/07/05~2022/07/30.
 (2)For this ex-dividend date, the chairperson shall be fully authorized
    to handle and announce any matters not set forth herein in case the
    dividend payout ratio changes based on impact on the number of
    outstanding shares by changes in share capital.