| Company | Timeline | Status | |
| Redstone Abrasives Limited Director • General Manager | 9 Aug 2011←14 Years→Current | Active | |
| Redstone Abrasives Limited Director • General Manager | 9 Aug 2011←13 Years→30 Nov 2024 | Active | |
| Thorncraft Trading Co. Limited Director • General Manager | 22 May 2006←19 Years→Current | Active | |
| Thorncraft Trading Co. Limited Director • General Manager | 22 May 2006←18 Years→30 Nov 2024 | Active | |
