| Organisation | Role | Activity | From | Until |
|---|---|---|---|---|
| Atta Capital Limited | RO | Asset management | 2020-10-29 | - |
| RO | Advising on securities | 2019-01-22 | - | |
| Atta Securities Limited | RO | Dealing in securities | 2019-01-22 | - |
| Atta Capital Limited | Rep | Advising on securities | 2018-10-03 | 2019-01-22 |
| Rep | Asset management | 2018-10-03 | 2020-10-29 | |
| Atta Securities Limited | Rep | Dealing in securities | 2018-10-03 | 2019-01-22 |
| Rep | Dealing in futures contracts | 2018-10-03 | 2021-05-04 | |
| GF Capital (Hong Kong) Limited | Rep | Advising on corporate finance | 2010-04-19 | 2017-04-26 |
| GF Securities (Hong Kong) Brokerage Limited | Rep | Dealing in securities | 2010-04-19 | 2017-04-26 |
| Citigroup Global Markets Asia Limited | Rep | Advising on corporate finance | 2006-02-13 | 2009-10-15 |
| Rep | Dealing in securities | 2006-02-13 | 2009-10-15 | |
| CITIGROUP GLOBAL MARKETS HONG KONG FUTURES AND SECURITIES LIMITED | Rep | Dealing in securities | 2006-02-13 | 2009-10-15 |