| Company | Timeline | Status | |
| N.Armstrong Limited Secretary • Pharmacist | 22 May 2001←24 Years→Current | Active | |
| N.Armstrong Limited Secretary • Pharmacist | 22 May 2001←23 Years→15 Jul 2024 | Active | |
| N.Armstrong Limited Director • Director | 15 Dec 1991←29 Years→8 Jun 2021 | Active | |
