| Organisation | Role | Activity | From | Until |
|---|---|---|---|---|
| CITIC Securities Brokerage (HK) Limited | Rep | Dealing in securities | 2021-03-29 | 2024-07-02 |
| HAITONG INTERNATIONAL SECURITIES COMPANY LIMITED | Rep | Dealing in securities | 2020-04-21 | 2021-03-12 |
| KO'S BROTHER SECURITIES COMPANY LIMITED | Rep | Dealing in securities | 2003-07-08 | 2020-04-06 |
| Ko's Brother (Securities) Company | Rep | Advising on corporate finance | - | 2003-05-28 |
| Rep | Advising on securities | - | 2003-05-28 | |
| Rep | Asset management | - | 2003-05-28 | |
| Rep | Dealing in securities | - | 2003-06-20 |