| Company | Timeline | Status | |
| JCK Cooperation Ltd Director • Company Director | 14 Jul 2021←4 Years→Current | Active | |
SK Excel Materials Limited Director • Dental Practice Manager | 25 Mar 2013←2 Years 3 Months→30 Jun 2015 | Dissolved | |
| SK Excel Dental Limited Director • Manager | 26 Feb 2008←17 Years→Current | Active | |
