| CTEK ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| C-tek electronics (HK) Limited | Private company limited by shares | Live |
| NEW C-TEK (HK) LIMITED | Private company limited by shares | Dissolved |
| CTEK HONG KONG LIMITED | Private company limited by shares | Live |
| C-TEK INTERNATIONAL HK LIMITED | Private company limited by shares | Live |
| Ctek Technology Limited | Private company limited by shares | Live |
| CTEK TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Ctek International Technology Limited | Private company limited by shares | Live |
| CTEK Technology Service HK Limited | Private company limited by shares | Live |