| GF Securities (Hong Kong) Brokerage Limited | Rep | Advising on securities | 2017-11-17 | 2020-09-11 |
| Rep | Dealing in securities | 2017-11-17 | 2020-09-11 |
| CHINA MERCHANTS FUTURES (HK) CO., LIMITED | Rep | Dealing in futures contracts | 2013-08-09 | 2017-10-10 |
| CHINA MERCHANTS SECURITIES (HK) CO., LIMITED | Rep | Advising on securities | 2013-06-03 | 2017-10-10 |
| Rep | Dealing in securities | 2010-11-01 | 2017-10-10 |
| SOUTH CHINA COMMODITIES LIMITED | Rep | Dealing in futures contracts | 2007-10-30 | 2010-10-21 |
| SOUTH CHINA SECURITIES LIMITED | Rep | Dealing in securities | 2007-10-30 | 2010-10-21 |
| KARL THOMSON FINANCIAL ADVISORY LIMITED | Rep | Advising on corporate finance | 2005-09-12 | 2006-04-26 |
| KARL THOMSON INVESTMENT CONSULTANTS LIMITED | Rep | Advising on securities | 2005-07-18 | 2006-04-26 |