| Company | Timeline | Status | |
| Advanced Smoke Group Limited Director • Director  | 29 Sep 2008←17 Years→Current  | Active  | |
Advanced Car Park Ventilation Limited Secretary • Unreported  | 21 Aug 2007←10 Years→10 Apr 2018  | Dissolved  | |
| Hi-Protect Limited Secretary • Unreported  | 18 Jul 2007←18 Years→Current  | Active  | |
Advanced Smoke Technology Ltd Secretary • Unreported  | 12 Nov 1996←21 Years→24 Apr 2018  | Dissolved  | |
Euroduct Limited Director • Company Director  | 16 Aug 1992←25 Years→10 Apr 2018  | Dissolved  | |
