| Company | Timeline | Status | |
| Clayton Holdings Limited Director • Director | 1 Apr 2003←9 Months→31 Dec 2003 | Active | |
| Clayton Holdings Limited Secretary • Director | 1 Apr 2003←9 Months→31 Dec 2003 | Active | |
| Clayton Furnaces Limited Secretary • Director | 1 Apr 2003←9 Months→31 Dec 2003 | Active | |
| Clayton Furnaces Limited Director • Director | 1 Apr 2003←9 Months→31 Dec 2003 | Active | |
| Clayton Filtration Limited Secretary • Unreported | 1 Apr 2003←9 Months→31 Dec 2003 | Active | |
| Clayton Thermal Processes Limited Director • Company Secretary | 5 Jul 1999←4 Years→31 Dec 2003 | Active | |
| Beta Heat Treatment Limited Director • Company Secretary | 5 Jul 1999←4 Years→31 Dec 2003 | Active | |
| Clayton Thermal Processes Limited Secretary • Unreported | 6 Feb 1998←5 Years→31 Dec 2003 | Active | |
| Beta Heat Treatment Limited Secretary • Unreported | 6 Feb 1998←5 Years→31 Dec 2003 | Active | |
