| Company | Timeline | Status | |
| Bio Technics Limited Director • Accountant | 25 Nov 1998←3 Years→31 May 2002 | Active | |
| Oil Technics (Fire Fighting Products) Limited Director • Accountant | 25 Nov 1998←3 Years→31 May 2002 | Active | |
| Oil Technics Limited Director • Accountant | 25 Nov 1998←3 Years→31 May 2002 | Active | |
| Oil Technics Holdings Limited Director • Accountant | 17 Nov 1997←4 Years→31 May 2002 | Active | |
