| Company | Timeline | Status | |
| Institute Of Sheet Metal Engineering Director • Works Director | 10 May 2000←5 Years→31 Dec 2005 | Active | |
| Institute Of Sheet Metal Engineering Director • Director | 22 May 1991←5 Years→4 Dec 1996 | Active | |
| Copper & Automotive Washer Company Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
