| TRONSAN METALLIC YARN CO., LIMITED | Private company limited by shares | Dissolved |
| TRONSAN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| TRONSAN SHARE (FANCY YARN) LIMITED | Private company limited by shares | Dissolved |
| TRONSAN FANCY YARN COMPANY LIMITED | Private company limited by shares | Live |
| Tronsen Limited | | Live |
| TronShine Technology Limited | Private company limited by shares | Dissolved |
| HBH TRONSIN CHINA COMPANY LIMITED | Private company limited by shares | Dissolved |
| TRONSIN ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| TRONSIN GROUP OF COMPANY LIMITED | Private company limited by shares | Dissolved |
| TRONSOME LIMITED | Private company limited by shares | Dissolved |
| TRONSON LIMITED | Private company limited by shares | Dissolved |
| TRONSON ENTERPRISES LIMITED | Private company limited by shares | Live |
| TRONSON INVESTMENT LIMITED | Private company limited by shares | Live |
| TRONSSON LIMITED | Private company limited by shares | Live |
| TRONSUM LIMITED | Private company limited by shares | Live |
| TRONSYN TECHNOLOGY LIMITED | Private company limited by shares | Live |