| Company | Timeline | Status | |
| Linstone Chine Holiday Services Limited Director • Technical Director | 19 Apr 2014←11 Years→Current | Active | |
| Linstone Chine Management Co. Limited Director • Technical Director | 19 Apr 2014←1 Year→2 May 2015 | Active | |
| Linstone Chine Management Co. Limited Director • Technical Director | 19 Apr 2013←12 Years→Current | Active | |
| Invincium Limited Director • Materials Consultant | 17 Jul 2007←18 Years→Current | Active | |
| Materials Technology Limited Director • Materials Consultant | 31 Mar 2006←19 Years→Current | Active | |
