| SINOTECH LIMITED | Private company limited by shares | Dissolved |
| SINOTECH E & M LIMITED | Private company limited by shares | Live |
| SINOTECH LIMITED | Private company limited by shares | Live |
| NEW SINOTECH LIMITED | Private company limited by shares | Live |
| SINOTECH R&D LIMITED | Private company limited by shares | Live |
| SINOTECH ASIA LIMITED | Private company limited by shares | Live |
| Sinotech Capital Limited | Private company limited by shares | Live |
| Sinotech Ceramics Co ., Limited | Private company limited by shares | Live |
| SINO-TECH COMPONENTS LIMITED | Private company limited by shares | Dissolved |
| SINOTECH DIGITAL LIMITED | Private company limited by shares | Dissolved |
| Sinotech Digital Company Limited | Private company limited by shares | Live |
| SINOTECH ENTERPRISES LIMITED | Private company limited by shares | Live |
| SINOTECH GOLDMINE LIMITED | Private company limited by shares | Live |
| SINOTECH ENTERPRISES (HOLDING) LIMITED | Private company limited by shares | Dissolved |
| SINOTECH INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Sinotech Power Investment Co. Limited | | Live |
| SINOTECH RESOURCES LIMITED | Private company limited by shares | Live |
| SINOTECH CAPITAL RESOURCES LIMITED | Private company limited by shares | Live |
| SINOTECH SOLUTIONS LIMITED | Private company limited by shares | Dissolved |
| SINOTECH SYSTEM LIMITED | Private company limited by shares | Live |
| Sinotech (UK) Limited | Private company limited by shares | Dissolved |
| ADVANCED SINO-TECHNOLOGY CHINA LIMITED | Private company limited by shares | Dissolved |