| Ciyu Tech Hong Kong Limited | Private company limited by shares | Live |
| CIYUAN (HK) GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| CIYUAN INTERNATIONAL GROUP (HK) LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Ciyuan Space Limited | Private company limited by shares | Live |
| CIYUAN ELECTRONIC TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| CIYUAN (HONGKONG) TECHNOLOGY LIMITED | Private company limited by shares | Live |
| CIYUNXI LIMITED | Private company limited by shares | Live |