| Protocol Asset Management (HK) Limited | Rep | Asset management | 2022-11-04 | 2022-12-09 |
| Guosen Securities (HK) Brokerage Company, Limited | Rep | Advising on securities | 2013-09-19 | 2016-04-09 |
| Rep | Dealing in securities | 2013-05-21 | 2016-04-09 |
| GUOSEN SECURITIES (HK) CAPITAL COMPANY LIMITED | Rep | Advising on corporate finance | 2012-05-31 | 2013-05-21 |
| Rep | Dealing in securities | 2012-05-31 | 2013-05-21 |
| Yorkville Advisors HK Limited | Rep | Advising on corporate finance | 2010-08-27 | 2011-09-30 |
| Rep | Advising on securities | 2009-03-18 | 2011-09-30 |
| Rep | Dealing in securities | 2009-03-18 | 2011-09-30 |
| Citigroup Global Markets Asia Limited | Rep | Dealing in securities | 2006-03-15 | 2008-11-10 |
| CITIGROUP GLOBAL MARKETS HONG KONG FUTURES AND SECURITIES LIMITED | Rep | Dealing in securities | 2006-03-15 | 2008-11-10 |
| Citigroup Global Markets Asia Limited | Rep | Advising on corporate finance | 2006-03-10 | 2008-11-10 |
| LAZARD ASIA (HONG KONG) LIMITED | Rep | Advising on corporate finance | 2004-07-20 | 2006-02-28 |
| Rep | Advising on securities | 2004-07-20 | 2006-02-28 |