| Company | Timeline | Status | |
| Spectech Limited Director • Unreported | 31 May 1993←32 Years→Current | Active | |
| Spectech Limited Secretary • Unreported | 13 Dec 1991←1 Year 6 Months→1 Jul 1993 | Active | |
| Spectech Limited Secretary • Unreported | 1 Jan 1970←23 Years→1 Jul 1993 | Active | |
