| Company | Timeline | Status | |
| Pinnacle Construction Materials Limited Secretary • Unreported | 25 Oct 1994←10 Years→22 Mar 2005 | Active | |
| Sherburn Sand Company Limited Secretary • Unreported | 25 Oct 1994←18 Years→25 Jun 2013 | Active | |
| Hart Aggregates Limited Secretary • Unreported | 25 Oct 1994←18 Years→25 Jun 2013 | Active | |
| Sherburn Minerals Limited Secretary • Unreported | 25 Oct 1994←18 Years→25 Jun 2013 | Active | |
| Sherburn Stone Company Limited Secretary • Unreported | 25 Oct 1994←18 Years→25 Jun 2013 | Active | |
| Pinnacle Construction Materials Limited Director • Mining Engineer | 31 Aug 1994←10 Years→22 Mar 2005 | Active | |
| Vertical Technology Limited Director • Roped Access Supervisor | 21 Dec 1993←2 Years 4 Months→19 Apr 1996 | Active | |
| Hart Aggregates Limited Director • Mining Engineer | 18 Oct 1991←21 Years→25 Jun 2013 | Active | |
| Sherburn Minerals Limited Director • Mining Engineer | 18 Oct 1991←21 Years→25 Jun 2013 | Active | |
| Sherburn Stone Company Limited Director • Mining Engineer | 18 Oct 1991←21 Years→25 Jun 2013 | Active | |
