| Company | Timeline | Status | |
| Prodec Precision Manufacturing Co. Limited Director • Engineer | 30 May 1991←10 Years→20 Jul 2001 | Active | |
| Prodec Engineering Co. Limited Director • Engineer | 30 May 1991←10 Years→20 Jul 2001 | Active | |
| Prodec (Holdings) Limited Director • Engineer | 31 Jan 1991←10 Years→20 Jul 2001 | Active | |
