| Company | Timeline | Status | |
| Kristek (Holdings) Limited Director • Director | 19 Oct 1995←30 Years→Current | Active | |
| Kristek (Holdings) Limited Secretary • Engineer | 19 Oct 1995←30 Years→Current | Active | |
| Kristek Precision Limited Secretary • Unreported | 10 Apr 1991←34 Years→Current | Active | |
| Kristek Precision Limited Director • Director | 10 Apr 1991←34 Years→Current | Active | |
