| SPEEDTECH LIMITED | Private company limited by shares | Live |
| SPEEDTECH E & M COMPANY LIMITED | Private company limited by shares | Live |
| SPEEDTECH AUTO ENGINEERING LIMITED | Private company limited by shares | Live |
| SPEED-TECH ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| SPEEDTECH (HK) LIMITED | Private company limited by shares | Dissolved |
| SPEEDTECH (HK) CO., LIMITED | Private company limited by shares | Live |
| Speed-Tech Technology (Hong Kong) Limited | | Live |
| SPEEDTECH INTERNATIONAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| SPEEDTECH INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SPEEDTECH LOGISTICS LIMITED | Private company limited by shares | Dissolved |
| SPEEDTECH LOGISTICS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SPEEDTECH GLOBAL SERVICES LIMITED | Private company limited by shares | Live |
| SpeedTech Solution Limited | Private company limited by shares | Live |
| SPEED-TECH PRECISION SPRING LIMITED | Private company limited by shares | Dissolved |
| SPEEDTECH INDUSTRIAL SUPPLIES LIMITED | Private company limited by shares | Dissolved |
| SPEED-TECH TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| SPEEDTECH (CHINA) TRADING COMPANY LIMITED | Private company limited by shares | Live |