| PROTIME LIMITED | Private company limited by shares | Dissolved |
| PROTIME LIMITED | Private company limited by shares | Live |
| PROTIME CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| PROTIME TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| PROTIME ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| PROTIME (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| PROTIME INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| PROTIME INDUSTRIAL CORPORATION LIMITED | Private company limited by shares | Dissolved |
| PROTIME INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| PROTIME INVESTMENT LIMITED | Private company limited by shares | Live |
| PROTIME NETWORK LIMITED | Private company limited by shares | Live |
| PRO-TIME PRECISION LIMITED | Private company limited by shares | Dissolved |
| PROTIME INTERNET TECHNOLOGY LIMITED | Private company limited by shares | Live |