| Company | Timeline | Status | |
| J-Joo Ltd Director • Director | 1 Jun 2023←2 Years 5 Months→Current | Active | |
| Quartet Holdings Limited Director • Manager Office Maintenance | 30 Jun 2021←5 Months→30 Nov 2021 | Dissolved | |
| Quartet Books Limited Director • Manager Office Maintenance | 30 Jun 2021←4 Years→Current | Liquidation | |
