| Company | Timeline | Status | |
| Seagull Engineering Limited Director • Production Director | 8 Jan 2014←11 Years→Current | Active | |
TLS Engineering Limited Director • Production Director | 7 Jan 2014←3 Years→5 Dec 2017 | Dissolved | |
Powerplus Holdings Limited Director • Production Director | 16 Feb 2004←16 Years→29 Sep 2020 | Dissolved | |
Powerplus Engineering Limited Director • Engineer | 18 Jan 1999←20 Years→4 Dec 2019 | Dissolved | |
Powerplus Engineering Limited Director • Engineer | 27 Mar 1995←7 Months→15 Nov 1995 | Dissolved | |
