| Company | Timeline | Status | |
| International Federation Of Hydrographic Societies Director • Electronics | 6 Dec 1994←1 Year 9 Months→25 Sep 1996 | Active | |
| Del Norte Technology Limited Director • General Manager | 24 Dec 1992←1 Year 3 Months→1 Apr 1994 | Dissolved | |
| Del Norte Technology Limited Secretary • Unreported | 24 Dec 1991←5 Years→5 May 1997 | Dissolved | |
