| Organisation | Role | Activity | From | Until |
|---|---|---|---|---|
| Yuen Shing Capital Limited | RO | Advising on securities | 2019-03-11 | 2021-10-31 |
| RO | Asset management | 2019-03-11 | 2021-10-31 | |
| Fuh Hwa SITE Asset Management (Hong Kong) Limited | RO | Advising on securities | 2010-03-08 | 2017-06-30 |
| RO | Asset management | 2010-03-08 | 2017-06-30 | |
| Rep | Asset management | 2009-04-16 | 2010-03-08 | |
| Rep | Advising on securities | 2009-03-18 | 2010-03-08 | |
| DAIWA INSTITUTE OF RESEARCH (HONG KONG) LIMITED | Rep | Advising on securities | 2007-02-28 | 2009-02-13 |
| CASH ASSET MANAGEMENT LIMITED | Rep | Asset management | 2005-10-10 | 2006-08-14 |
| CELESTIAL SECURITIES LIMITED | Rep | Dealing in securities | 2005-10-10 | 2006-08-14 |