| Organisation | Role | Activity | From | Until |
|---|---|---|---|---|
| TUNG YAT SECURITIES LIMITED | RO | Asset management | 2022-12-16 | - |
| RO | Advising on securities | 2022-09-13 | - | |
| RO | Dealing in securities | 2018-11-13 | - | |
| Nerico Brothers Limited (HK) | Rep | Dealing in futures contracts | 2008-11-13 | 2018-10-24 |
| RO | Dealing in securities | 2008-06-17 | 2018-10-24 | |
| Rep | Dealing in securities | 2008-04-28 | 2008-06-17 | |
| ONE CHINA SECURITIES LIMITED | Rep | Dealing in securities | 2006-05-08 | 2008-04-18 |
| OCBC Securities Brokerage (Hong Kong) Limited | Rep | Providing automated trading services | 2003-04-01 | 2003-07-21 |
| Rep | Advising on corporate finance | 2003-04-01 | 2004-01-27 | |
| Rep | Advising on securities | 2003-04-01 | 2004-01-27 | |
| Rep | Asset management | 2003-04-01 | 2004-01-27 | |
| Rep | Dealing in securities | 2003-04-01 | 2005-07-18 |