| Organisation | Role | Activity | From | Until |
|---|---|---|---|---|
| High Nine Asset Management Limited | RO | Asset management | 2020-02-25 | 2024-06-04 |
| Chinese Strategic Asset Management Limited | RO | Advising on securities | 2019-04-03 | 2019-08-30 |
| RO | Asset management | 2019-04-03 | 2019-08-30 | |
| GRAND ALLIANCE ASSET MANAGEMENT LIMITED | Rep | Asset management | 2005-06-27 | 2006-02-13 |
| Rep | Dealing in securities | 2004-05-25 | 2005-07-12 | |
| DBS VICKERS (HONG KONG) LIMITED | Rep | Dealing in futures contracts | 2003-10-30 | 2004-05-03 |
| Rep | Dealing in securities | 2003-07-10 | 2004-05-03 | |
| DBS VICKERS FUTURES (HONG KONG) LIMITED DBS | Rep | Dealing in futures contracts | 2003-07-10 | 2003-12-09 |