| Company | Timeline | Status | |
| Polytech Metals Limited Secretary • Unreported | 6 Apr 2004←4 Years→29 Aug 2008 | Active | |
| Polytech Metals Limited Director • Finance Controller | 9 May 2002←1 Year 11 Months→5 Apr 2004 | Active | |
| Polytech Food Systems Limited Director • Finance Controller | 5 Jan 2000←4 Years→5 Apr 2004 | Active | |
| Polytech Food Systems Limited Secretary • Unreported | 29 Mar 1991←24 Years→1 Mar 2016 | Active | |
