| Company | Timeline | Status | |
| Amplebox Limited Secretary • Unreported | 12 Oct 1991←2 Years 2 Months→4 Jan 1994 | Active | |
| Keelstone Limited Director • Unreported | 1 Jan 1970←25 Years→30 Nov 1995 | Liquidation | |
| Keelstone Limited Secretary • Unreported | 1 Jan 1970←38 Years→27 Nov 2008 | Liquidation | |
