| FULLSIN DEVELOPMENT LIMITED | Private company limited by shares | Live |
| FULL-SIN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| FULLSING MECHANICAL APPLIANCES MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| FULLSINO LIMITED | Private company limited by shares | Live |
| FULLSINO (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| FULLSINO MANAGEMENT LIMITED | Private company limited by shares | Live |
| FULLSINO TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| FULLSINO LONG VAST LIMITED | Private company limited by shares | Live |