| VACUUM E & M HK LIMITED | Private company limited by shares | Live |
| VACUUM LIMITED | Private company limited by shares | Live |
| SUN NGAI VACUUM COATING FACTORY LIMITED | Private company limited by shares | Live |
| FOOK TIN VACUUM PLATED MANUFACTORY COMPANY LIMITED | Private company limited by shares | Dissolved |
| SHANGHAI FIRST VACUUM PUMP CO., LIMITED | Private company limited by shares | Live |
| TIME RICH VACUUM TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Under Vacuum Limited | Private company limited by shares | Live |
| HANG FUNG VACUUMFORMING MANUFACTORY LIMITED | Private company limited by shares | Live |
| TAI SANG (VACUUM-FORMING) COMPANY, LIMITED | Private company limited by shares | Dissolved |
| VACUUMLABS ASIA LIMITED | Private company limited by shares | Live |