| Organisation | Role | Activity | From | Until |
|---|---|---|---|---|
| TUNG SHUN SECURITIES LIMITED | Rep | Dealing in securities | 2005-03-01 | 2020-07-02 |
| CHENG YAM ON SECURITIES LIMITED | Rep | Advising on corporate finance | - | 2004-01-05 |
| Rep | Advising on securities | - | 2004-01-05 | |
| Rep | Asset management | - | 2004-01-05 | |
| Rep | Dealing in securities | - | 2005-02-28 |