| Company | Timeline | Status | |
| Premax Engineering Limited Director • Director | 14 May 1992←28 Years→20 Mar 2021 | Active | |
| Dudley Court Management Co. Limited Director • Company Director | 12 Dec 1991←25 Years→8 Mar 2017 | Active | |
| Transformotor Limited Director • Director | 14 May 1991←29 Years→20 Mar 2021 | Active | |
| Mason Crawford (Holdings) Limited Director • Director | 14 May 1991←29 Years→20 Mar 2021 | Active | |
