| Company | Timeline | Status | |
| Crown Polishing And Plating Company Limited Director • Director | 6 Apr 2020←5 Years→Current | Active | |
| Crown Polishing And Plating Company Limited Director • Director | 6 Apr 2020←4 Years→28 Jan 2025 | Active | |
| Sigma Motor Company Ltd Director • None | 6 Oct 2009←13 Years→18 Oct 2022 | Dissolved | |
Sigma Fasteners Limited Director • Director | 18 Feb 2009←6 Years→27 Oct 2015 | Dissolved | |
