| Company | Timeline | Status | |
| Wash Studio Limited Secretary • Unreported | 13 Mar 2003←11 Years→30 Jun 2014 | Active | |
| Eil UK Director • Consultant Engineer | 1 Mar 1996←26 Years→2 Dec 2022 | Active | |
| KT Management Limited Director • Consultant Engineer | 21 Aug 1993←3 Years→16 Aug 1997 | Active | |
| Keswick Bridge Limited Director • Consultant Engineer | 28 Jun 1992←5 Years→23 Aug 1997 | Active | |
