| WINTECH MICROELECTRONICS TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| WINTECH NETWORK TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Wintech Precision Technology Limited | Private company limited by shares | Live |
| Wintech Solar Technology Limited | Private company limited by shares | Live |
| WIN-TECH TECHNOLOGY SYSTEMS LIMITED | Private company limited by shares | Live |
| Wintech Tecnology HK Limited | Private company limited by shares | Live |
| WINTECH TEXTILES LIMITED | Private company limited by shares | Dissolved |
| WINTECH TOYS COMPANY LIMITED | Private company limited by shares | Live |
| WINTECH TRADING LIMITED | Private company limited by shares | Live |
| EASY WINTECH TRADING LIMITED | Private company limited by shares | Live |
| WINTECH INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| WINTECH TRADING INTERNATIONAL LIMITED | Private company limited by shares | Live |
| WINTECH TRANSPORTATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| WINTECH TRANSPORTATION LIMITED | Private company limited by shares | Live |
| WinTech WaterWorks Limited | Private company limited by shares | Live |
| WINTECH METAL WORKS LIMITED | Private company limited by shares | Live |
| WINTECH-AIR AIR-CONDITIONING LIMITED | Private company limited by shares | Live |
| JIANGSU WINTECHEM CO., LIMITED | Private company limited by shares | Live |
| HK WINTECH-HK LIMITED | Private company limited by shares | Live |
| WINTECHMICRO LIMITED | Private company limited by shares | Dissolved |
| WINTECHNOLOGY INTERNATIONAL GROUP LIMITED | Private company limited by shares | Dissolved |
| WINTECH-TRANS HK LIMITED | Private company limited by shares | Live |
| WINTECH-TRANS COMPRESSING CO LIMITED | Private company limited by shares | Dissolved |
| WINTECK CO., LIMITED | Private company limited by shares | Dissolved |
| WINTECK ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| WINTECK INVESTMENT LIMITED | Private company limited by shares | Dissolved |