| ISOLA CAPITAL ASSET MANAGEMENT LIMITED | RO | Advising on securities | 2013-06-06 | - |
| RO | Dealing in securities | 2013-06-06 | - |
| RO | Asset management | 2012-10-17 | - |
| Yorkville Advisors HK Limited | RO | Advising on corporate finance | 2010-08-27 | 2011-10-31 |
| RO | Advising on securities | 2009-03-18 | 2011-10-31 |
| RO | Dealing in securities | 2009-03-18 | 2011-10-31 |
| LEHMAN BROTHERS ASIA LIMITED | Rep | Advising on securities | 2007-05-28 | 2008-07-21 |
| Rep | Advising on corporate finance | 2007-05-23 | 2008-07-21 |
| Citigroup Global Markets Asia Limited | Rep | Advising on corporate finance | 2004-04-30 | 2007-04-27 |
| Rep | Dealing in securities | 2004-04-30 | 2007-04-27 |
| CITIGROUP GLOBAL MARKETS HONG KONG FUTURES AND SECURITIES LIMITED | Rep | Dealing in securities | 2004-04-30 | 2007-05-11 |
| Credit Suisse Securities (Hong Kong) Limited | Rep | Advising on corporate finance | 2003-04-01 | 2004-04-13 |
| Rep | Advising on securities | 2003-04-01 | 2004-04-13 |
| Rep | Asset management | 2003-04-01 | 2004-04-13 |