| Organisation | Role | Activity | From | Until |
|---|---|---|---|---|
| CAITONG INTERNATIONAL SECURITIES CO., LIMITED | Rep | Dealing in securities | 2015-09-17 | 2019-11-26 |
| ORIENT SECURITIES LIMITED | Rep | Dealing in securities | 2013-10-15 | 2015-08-31 |
| WIN WONG SECURITIES LIMITED | Rep | Dealing in securities | 2008-06-23 | 2013-10-11 |
| HING WONG SECURITIES LIMITED | Rep | Dealing in securities | 2006-01-01 | 2008-06-13 |
| ORIENT SECURITIES LIMITED | Rep | Dealing in securities | 2005-08-27 | 2005-12-01 |
| Hongkong Bay Securities Limited | Rep | Dealing in securities | 2004-08-31 | 2005-08-26 |