| Organisation | Role | Activity | From | Until |
|---|---|---|---|---|
| Vontobel Limited | RO | Dealing in securities | 2019-05-24 | 2021-08-13 |
| Rep | Dealing in securities | 2019-01-15 | 2019-05-24 | |
| Premia Partners Company Limited | Rep | Advising on securities | 2018-09-04 | 2018-11-28 |
| Rep | Dealing in securities | 2018-09-04 | 2018-11-28 | |
| Credit Agricole Securities (Asia) Limited | Rep | Dealing in securities | 2010-11-24 | 2011-11-10 |
| HANG SENG INVESTMENT MANAGEMENT LIMITED | Rep | Asset management | 2004-12-23 | 2006-10-16 |
| Rep | Advising on corporate finance | - | 2003-12-30 | |
| Rep | Asset management | - | 2003-12-30 | |
| Rep | Advising on securities | - | 2006-10-16 |