| Year | Per Common Share | Ex Date | Ex Rights | Record Date | Payment Date | Shareholders' Meeting Date | |
| Cash Dividends (NTD) | Stock Dividends | ||||||
| 2020 | 4.8 | - | - | - | - | - | 2021/06/03 |
| 2019 | 6.03730315 | - | 2020/06/12 | - | 2020/06/20 | 2020/07/15 | 2020/05/27 |
| 2018 | 8 | - | 2019/05/23 | - | 2019/05/29 | 2019/06/14 | 2019/05/07 |
| 2017 | 6.99 | 0 | - | - | - | - | 2018/06/28 |