| Company | Timeline | Status | |
| Siromer Limited Secretary • Unreported | 15 Sep 2004←21 Years→Current | Active | |
| Yanchang Limited Director • Unreported | 6 Aug 2004←21 Years→Current | Active | |
| Lee For Service Limited Director • Lecturer | 23 Apr 1992←11 Years→26 Aug 2003 | Active | |
| Lee For Service Limited Secretary • Unreported | 23 Apr 1992←12 Years→15 Sep 2004 | Active | |
| Siromer Limited Secretary • Unreported | 23 May 1991←12 Years→26 Aug 2003 | Active | |
| Siromer Limited Director • Lecturer | 23 May 1991←12 Years→26 Aug 2003 | Active | |
