| Advanced Sterilization Limited | | Live |
| GAWOKEI STERILIZATION CO., LIMITED | Private company limited by shares | Live |
| MS Sterilization Service Company Limited | Private company limited by shares | Live |
| Kit Bo Tableware Sterilization Limited | Private company limited by shares | Live |
| Cleanse Tableware Sterilization Limited | Private company limited by shares | Live |
| Dr.V Sterilization Technology Company Limited | Private company limited by shares | Live |
| UVGI STERILIZATION SYSTEM LIMITED | Private company limited by shares | Dissolved |
| Wash Up Cleaning and Sterilization Services Limited | Private company limited by shares | Live |