| Company | Timeline | Status | |
| Cleveland Scientific Institution Director • Engineer | 1 Sep 2014←3 Years→15 Dec 2017 | Active | |
| K Home International Limited Director • Engineer | 7 Dec 1991←34 Years→Current | Active | |
| K. Home Limited Director • Engineer | 7 Dec 1990←35 Years→Current | Active | |
| K Home International Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
| K. Home Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
