| Company | Timeline | Status | |
| Intoco Limited Director • Engineer | 31 Dec 1991←26 Years→18 Jan 2018 | Active | |
| Intoco Steel Division Limited Director • Engineer | 31 Dec 1991←26 Years→18 Jan 2018 | Active | |
| Independent Tool Consultants Limited Director • Engineer | 18 Aug 1991←26 Years→18 Jan 2018 | Active | |
