| MINSEC TIME LIMITED | Private company limited by shares | Dissolved |
| Minsecond Industry (HK) Limited | Private company limited by shares | Live |
| MINSEN LIMITED | Private company limited by shares | Live |
| Guangzhou Minsen Environmental Technology Co., Limited | Private company limited by shares | Live |
| MINSEN TESTING EQUIPMENT (ASIA) LIMITED | Private company limited by shares | Live |
| Minsen Group Limited | Private company limited by shares | Live |
| MINSEN HOLDING COMPANY LIMITED | Private company limited by shares | Live |
| MINSEN TESTING (HONG KONG) LIMITED | Private company limited by shares | Live |
| MINSEN Testing (Hong Kong) Service Limited | | Live |
| MINSEN INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| H.K MINSEN INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| MINSEN INTERNATIONAL (HONGKONG) LIMITED | Private company limited by shares | Live |
| MINSEN INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| MST MINSEUNG TRADE LIMITED | Private company limited by shares | Live |