| WORLDCOM TYWIN (HK) CO., LIMITED | Private company limited by shares | Live |
| TYWIN IMPORT AND EXPORT TRADING LIMITED | Private company limited by shares | Live |
| TYWOOD LIMITED | Private company limited by shares | Dissolved |
| TYWOOD LIMITED | Private company limited by shares | Live |
| TYY01 Limited | | Live |
| TYY02 Limited | | Live |
| TYY03 Limited | | Live |
| TYY04 Limited | | Live |
| TYY05 Limited | | Live |
| TYYF GROUP LIMITED | Private company limited by shares | Live |
| TYYT LIMITED | Private company limited by shares | Live |
| TYZANIC OPTIC CO., LIMITED | Private company limited by shares | Live |