| Company | Timeline | Status | |
| PCB Technical Solutions Limited Director • Company Director | 22 Jul 2014←11 Years→Current | Active | |
| PCB Technical Solutions Limited Director • Company Director | 22 Jul 2014←9 Years→31 May 2024 | Active | |
| Airconditioning & Associated Services Limited Director • Director | 8 May 2007←2 Years 7 Months→4 Dec 2009 | Dissolved | |
| Four Seasons Energy Management Group Limited Director • Company Director | 2 May 2007←1 Year 1 Month→16 Jun 2008 | Dissolved | |
| Four Seasons Maintenance Ltd Director • Director | 3 Oct 2005←4 Years→4 Dec 2009 | Dissolved | |
| Four Seasons Control Holdings Limited Director • Director | 1 Sep 2005←4 Years→4 Dec 2009 | Dissolved | |
