| Company | Timeline | Status | |
| Quartz Computing Limited Director • Company Secretary | 1 Mar 2011←1 Day→1 Mar 2011 | Active | |
| Quartz Computing Limited Secretary • Unreported | 28 Sep 2004←6 Years→1 Mar 2011 | Active | |
| Lineartron Limited Secretary • Unreported | 1 Sep 2004←9 Years→1 Jan 2014 | Active | |
