| C.E.T.E.C. LIMITED | Private company limited by shares | Live |
| CeTec Corporation Limited | Private company limited by shares | Dissolved |
| CETEC INTERNATIONAL ENGINEERING LIMITED | Private company limited by shares | Live |
| CETEC HONG KONG LIMITED | Private company limited by shares | Live |
| CETEC INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| CETEC PROPERTY CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| CETECH LIMITED | Private company limited by shares | Live |
| CETECH INVESTMENT (HONG KONG) CO., LIMITED | Private company limited by shares | Live |