| HK Tong Yuan Technical Co., Limited | Private company limited by shares | Live |
| YUNNAN JINDING FOREIGN ECONOMIC TECHNICAL COOPERATION LIMITED | Private company limited by shares | Live |
| ZENITH TECHNICAL LIMITED | Private company limited by shares | Live |
| Zero Technical Consulting Co., Limited | Private company limited by shares | Live |
| HUA ZHONG TECHNICAL ALLIANCE COMPANY LIMITED | Private company limited by shares | Dissolved |
| Zhong An Yong Tai Economic And Technical Corporations Company Limited | | Live |
| NATURE TECHNICAL&INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| OPHIR TECHNICALS LIMITED | Private company limited by shares | Live |
| BeijingZHONGCHENHUITONG (HK) Technical&Technology Co., Limited | Private company limited by shares | Live |
| Technicas-E Limited | | Live |