| Organisation | Role | Activity | From | Until |
|---|---|---|---|---|
| Black Marble Securities Limited | Rep | Dealing in securities | 2016-08-02 | 2017-12-21 |
| Quam Securities Limited | Rep | Dealing in futures contracts | 2014-11-24 | 2016-04-30 |
| Rep | Dealing in securities | 2010-02-10 | 2016-04-30 | |
| Rep | Advising on securities | 2010-01-13 | 2016-04-30 | |
| Rep | Asset management | 2010-01-13 | 2016-04-30 | |
| WORL-D ASSET MANAGEMENT (HONG KONG) LIMITED | Rep | Advising on securities | 2009-02-09 | 2009-11-23 |
| Rep | Asset management | 2009-02-09 | 2009-11-23 | |
| KARL THOMSON INVESTMENT CONSULTANTS LIMITED | Rep | Asset management | 2008-04-22 | 2008-11-28 |
| Rep | Advising on securities | 2007-12-27 | 2008-11-28 |