| Company | Timeline | Status | |
| Big Bag Technique Limited Director • Engineer | 19 Dec 2006←18 Years→Current | Active | |
| Big Bag Technique Limited Secretary • Engineer | 19 Dec 2006←18 Years→Current | Active | |
| Carbro Sheet Metal Co Limited Secretary • Engineer | 6 Dec 1999←25 Years→Current | Active | |
| Carbro Sheet Metal Co Limited Director • Engineer | 6 Dec 1999←25 Years→Current | Active | |
