| Company | Timeline | Status | |
| Stamford Property Company Limited Director • Electronics Engineer | 23 Jun 1995←30 Years→Current | Active | |
| Paktronic Engineering Company Limited Director • Electronics Engineer | 31 Dec 1990←35 Years→Current | Active | |
| Paktronic Engineering Company Limited Director • Unreported | 1 Jan 1970←56 Years→Current | Active | |
