| Company | Timeline | Status | |
| CBS Business Furniture Limited Secretary • School Administration Officer | 10 Apr 2007←15 Years→15 Jul 2022 | Dissolved | |
| CBS Business Interiors Limited Secretary • School Administration Officer | 10 Apr 2007←14 Years→11 Jun 2021 | Dissolved | |
| Astral Green Limited Secretary • School Administration Officer | 31 Jan 2007←15 Years→1 Feb 2022 | Dissolved | |
