| Company | Timeline | Status | |
Spectro Scientific Limited Director • Accountant | 4 Aug 2009←8 Years→14 Jan 2018 | Dissolved | |
Spectro Scientific Limited Secretary • Unreported | 20 Mar 2009←8 Years→14 Jan 2018 | Dissolved | |
| Spectro-Service Limited Director • Company Secretary | 9 Oct 1991←25 Years→8 May 2017 | Dissolved | |
| Spectro-Service Limited Secretary • Unreported | 1 Jan 1970←47 Years→8 May 2017 | Dissolved | |
