| KETEC MACHINERY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| KETEC TECHNOLOGY LIMITED | Private company limited by shares | Live |
| KETECH LIMITED | Private company limited by shares | Dissolved |
| KETECH CO., LIMITED | Private company limited by shares | Dissolved |
| KETECH ELECTRON LIMITED | Private company limited by shares | Live |
| Ketech Engineering Limited | Private company limited by shares | Dissolved |
| KETECH INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| KETECH TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |