| Company | Timeline | Status | |
| Institute Of Professional Investigators Limited(The) Director • Professional Investigator | 8 Oct 1994←7 Years→6 Oct 2001 | Active | |
| Quik-Kuf International Limited Director • Director | 22 Mar 1993←9 Years→30 Apr 2002 | Active | |
| Fan Court Residents' Association Limited Director • Security Consultant | 26 Sep 1992←29 Years→14 Sep 2022 | Active | |
