| Company | Timeline | Status | |
K-Power Limited Director • Director | 27 Oct 2010←4 Years→22 Sep 2015 | Dissolved | |
| Microcosm Limited Director • Statistician | 19 Dec 1991←34 Years→Current | Active | |
| Microcosm Research Limited Director • Unreported | 1 Aug 1981←44 Years→10 Dec 2025 | Active | |
| Microcosm Limited Secretary • Unreported | 1 Jan 1970←55 Years→10 Dec 2025 | Active | |
