| Organisation | Role | Activity | From | Until |
|---|---|---|---|---|
| UPBEST SECURITIES COMPANY LIMITED | Rep | Advising on securities | 2017-04-12 | 2018-10-01 |
| Rep | Dealing in securities | 2017-04-12 | 2018-10-01 | |
| Yuanta Securities (Hong Kong) Company Limited | Rep | Dealing in securities | 2012-06-20 | 2014-03-13 |
| Yuanta Asia Investment (Hong Kong) Limited | Rep | Dealing in securities | 2010-01-25 | 2013-04-26 |
| GREATER CHINA SECURITIES LIMITED | Rep | Dealing in securities | 2006-06-07 | 2009-11-30 |
| Tung Shing Securities (Brokers) Limited | Rep | Advising on corporate finance | - | 2003-04-10 |
| Rep | Advising on securities | - | 2003-04-10 | |
| Rep | Asset management | - | 2003-04-10 | |
| Rep | Dealing in securities | - | 2003-04-10 |