| Company | Timeline | Status | |
| Ambercrown Limited Director • Retired | 31 Oct 2016←3 Years→19 Aug 2020 | Active | |
| Ambercrown Limited Director • Technical Superviser | 12 Mar 1998←4 Months→1 Aug 1998 | Active | |
| Ambercrown Limited Secretary • Technical Superviser | 12 Mar 1998←4 Months→31 Jul 1998 | Active | |
