| Company | Timeline | Status | |
Abacus Transport Products Limited Secretary • Unreported | 11 May 2009←8 Years→17 Jun 2017 | Dissolved | |
| Abacus Tubular Products Limited Secretary • Unreported | 23 Dec 1991←34 Years→Current | Active | |
| Abacus Tubular Products Limited Secretary • Unreported | 1 Jan 1970←56 Years→Current | Active | |
