| Company | Timeline | Status | |
| Sewing Machine Trade Association Limited Director • Managing Director | 1 Jun 1991←10 Years→12 May 2002 | Active | |
| J & B Sewing Machine Company Limited Director • Managing Director | 31 Dec 1990←35 Years→Current | Active | |
| J & B Sewing Machine Company Limited Director • Unreported | 1 Jan 1970←56 Years→Current | Active | |
