| Organisation | Role | Activity | From | Until |
|---|---|---|---|---|
| CHINAWIDE SECURITIES LIMITED | Rep | Dealing in securities | 2011-05-24 | 2012-07-16 |
| SOUTH CHINA SECURITIES LIMITED | Rep | Dealing in securities | 2010-05-26 | 2011-01-01 |
| WINTECH SECURITIES LIMITED | RO | Advising on securities | - | 2004-12-17 |
| RO | Asset management | - | 2004-12-17 | |
| RO | Dealing in securities | - | 2005-06-16 |