| Company | Timeline | Status | |
| S.W.F. Electronics Limited Secretary • Unreported | 31 Dec 1991←33 Years→Current | Active | |
| S.W.F. Machinery Limited Director • Unreported | 30 Sep 1990←35 Years→Current | Active | |
| S.W.F. Machinery Limited Secretary • Unreported | 30 Sep 1990←35 Years→Current | Active | |
| S.W.F. Electronics Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
