| Company | Timeline | Status | |
| The Churchill Machine Tool Company Limited Secretary • Unreported | 1 Mar 2007←18 Years→Current | Active | |
| S.B.T. Engineering Services Limited Secretary • Unreported | 1 Mar 2007←18 Years→Current | Active | |
| S.B.T. Engineering Services Limited Secretary • Unreported | 1 Mar 2007←18 Years→4 Apr 2025 | Active | |
| SBT Holdings Limited Secretary • Unreported | 17 Jan 2007←18 Years→Current | Active | |
| SBT Holdings Limited Secretary • Unreported | 17 Jan 2007←18 Years→4 Apr 2025 | Active | |
