| SCIENTIFIC SUCCESS LIMITED | Private company limited by shares | Dissolved |
| SCIENTIFIC SPORTS SYSTEMS LIMITED | Private company limited by shares | Live |
| TECSYNC SCIENTIFIC LIMITED | | Live |
| SCIENTIFIC TELECOMMUNICATION LIMITED | Private company limited by shares | Dissolved |
| Topwin Scientific Limited | Private company limited by shares | Live |
| SCIENTIFIC TOYS, LIMITED | Private company limited by shares | Live |
| UNI-ASIA SCIENTIFIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNITE SCIENTIFIC LIMITED | Private company limited by shares | Live |
| VISION SCIENTIFIC LIMITED | Private company limited by shares | Live |
| V-tech Scientific Limited | Private company limited by shares | Live |
| Wells Scientific Limited | Private company limited by shares | Live |
| Windleaf Scientific Limited | Private company limited by shares | Live |
| WINNING SCIENTIFIC LIMITED | Private company limited by shares | Dissolved |
| WISDOM SCIENTIFIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| ZENITH SCIENTIFIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| ZENITH SCIENTIFIC LIMITED | Private company limited by shares | Live |
| ZIRIUS SCIENTIFIC LIMITED | Private company limited by shares | Dissolved |
| ZONE TIME SCIENTIFIC LIMITED | Private company limited by shares | Live |
| SHANGHAI TAI-WEI SCIENTIFIC&TECHNICAL (HK) DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| HONEST SCIENTIFIC&TECHNOLOGY (CHINA) CO., LIMITED | Private company limited by shares | Live |