| Company | Timeline | Status | |
| Grannatech Limited Secretary • Art Historian | 28 Mar 2000←25 Years→Current | Active | |
| Grannatech Limited Director • Art Historian | 28 Mar 2000←3 Years→29 Jul 2003 | Active | |
| Blackheath Tube Company Limited Secretary • Unreported | 5 Aug 1997←28 Years→Current | Liquidation | |
| Blackheath Tube Company Limited Director • Company Secretary | 5 Aug 1997←28 Years→Current | Liquidation | |
