| Company | Timeline | Status | |
| Hydrogen Supplies Limited Director • Finance Director | 13 Jan 2003←1 Year 10 Months→23 Nov 2004 | Active | |
| Air Liquide Limited Director • Finance Director | 13 Jan 2003←1 Year 10 Months→23 Nov 2004 | Active | |
| Hydrogen Supplies Limited Secretary • Unreported | 8 Jan 1999←5 Years→23 Nov 2004 | Active | |
| Air Liquide Limited Secretary • Unreported | 8 Jan 1999←5 Years→23 Nov 2004 | Active | |
| Gas & Equipment Limited Secretary • Unreported | 8 Jan 1999←5 Years→23 Nov 2004 | Active | |
| Electrochem Limited Secretary • Unreported | 8 Jan 1999←5 Years→23 Nov 2004 | Dissolved | |
Kingston Medical Gases Limited Secretary • Unreported | 8 Jan 1999←5 Years→23 Nov 2004 | Dissolved | |
