| 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 | 1 Jan 1970←47 Years→8 May 2017 | Active | |
| Spectro-Service Limited Secretary • Company Secretary | 1 Jan 1970←47 Years→8 May 2017 | Active | |
