| Company | Timeline | Status | |
| Electro Magnetic Products Limited Secretary • Micro Biologist | 17 Dec 1998←4 Years→20 Dec 2002 | Active | |
| Electro Magnetic Products Limited Director • Micro Biologist | 17 Dec 1998←4 Years→20 Dec 2002 | Active | |
| Medcross Limited Director • Microbiologist | 26 Aug 1998←4 Years→10 Mar 2003 | Active | |
