| Company | Timeline | Status | |
| Kilner Holdings Limited Director • Engineer | 9 Mar 2007←9 Years→7 Jan 2017 | Active | |
| Maximum Controls Limited Director • Engineer | 31 Dec 1991←25 Years→7 Jan 2017 | Active | |
| Kilner Vacuumation Company Limited Director • Engineer | 31 Dec 1991←25 Years→14 Jan 2017 | Active | |
