| Company | Timeline | Status | |
| CLM Engineering (Overseas) Limited Director • Accountant | 19 Aug 1996←2 Years 4 Months→31 Dec 1998 | Dissolved | |
| Costain Oil, Gas & Process Limited Director • Accountant | 28 Feb 1993←5 Years→31 Dec 1998 | Active | |
| Costain Oil, Gas & Process (Overseas) Limited Director • Accountant | 28 Feb 1992←6 Years→31 Dec 1998 | Active | |
