| Company | Timeline | Status | |
| R. Blackett & Son Limited Secretary • Unreported | 1 Oct 1999←1 Year 5 Months→28 Mar 2001 | Active | |
| Seaton Leng & Son,Limited Director • Unreported | 16 Oct 1995←30 Years→Current | Active | |
| R. Blackett & Son Limited Director • Chartered Accountant | 22 Nov 1991←17 Years→1 Jul 2009 | Active | |
