| Optimas Capital Limited | RO | Asset management | 2020-03-04 | - |
| RO | Advising on securities | 2018-12-12 | - |
| RO | Dealing in securities | 2018-12-12 | 2023-07-07 |
| Rep | Asset management | 2017-03-23 | 2020-03-04 |
| NOMURA INTERNATIONAL (HONG KONG) LIMITED | Rep | Dealing in futures contracts | 2014-08-20 | 2016-04-14 |
| Rep | Dealing in securities | 2013-08-12 | 2016-04-14 |
| Merrill Lynch Far East Limited | Rep | Dealing in futures contracts | 2010-08-20 | 2013-05-11 |
| MERRILL LYNCH FUTURES (HONG KONG) LIMITED | Rep | Dealing in futures contracts | 2009-07-27 | 2010-08-20 |
| Merrill Lynch (Asia Pacific) Limited | Rep | Dealing in securities | 2009-07-02 | 2013-05-11 |
| Merrill Lynch Far East Limited | Rep | Dealing in securities | 2009-07-02 | 2013-05-11 |
| Citigroup Global Markets Asia Limited | Rep | Dealing in securities | 2005-07-22 | 2009-05-11 |
| CITIGROUP GLOBAL MARKETS HONG KONG FUTURES AND SECURITIES LIMITED | Rep | Dealing in securities | 2005-07-22 | 2009-05-11 |
| Credit Suisse (Hong Kong) Limited | Rep | Advising on corporate finance | 2004-02-03 | 2005-03-11 |
| Rep | Advising on securities | 2004-02-03 | 2005-07-20 |