| Organisation | Role | Activity | From | Until |
|---|---|---|---|---|
| XinKong International Securities Limited | Rep | Dealing in securities | 2010-09-09 | 2012-09-15 |
| HUNG SING SECURITIES LIMITED | Rep | Dealing in securities | 2008-01-04 | 2010-07-23 |
| WIN WONG SECURITIES LIMITED | Rep | Dealing in securities | 2007-09-14 | 2008-01-02 |