| Company | Timeline | Status | |
| Kaleidoscope Club Limited Director • Piano Teacher | 29 Aug 1991←6 Years→1 Aug 1998 | Active | |
| Breakaway Singles Club (Social Functions) Limited Director • Piano Teacher | 20 Dec 1990←8 Years→27 Apr 1999 | Active | |
| Breakaway Singles Club (Social Functions) Limited Director • Unreported | 1 Jan 1970←29 Years→27 Apr 1999 | Active | |
