| HONG KONG CYTX MAINLAND TOURISM LIMITED | Private company limited by shares | Live |
| An Cyuan Limited | | Live |
| Hong Kong Cyuan Trading Limited | | Live |
| Cyuan Sheng (HK) Limited | Private company limited by shares | Dissolved |
| CYUAN TRADE LIMITED | | Live |
| CYUI HK COMPANY LIMITED | Private company limited by shares | Live |
| Cyun Hau Limited | Private company limited by shares | Live |
| Siu Cyun Wu Limited | | Live |
| WU SIU CYUN COMPANY LIMITED | | Live |
| CYUN TRADE LIMITED | | Live |
| CYUN4 FASHION DESIGN LIMITED | Private company limited by shares | Live |
| HK C.YUNG INT'L LIMITED | Private company limited by shares | Live |
| CYUNION CO., LIMITED | Private company limited by shares | Live |
| CYVACE LIMITED | Private company limited by shares | Live |
| Cyverse HK Limited | | Live |
| CYVOLE LIMITED | Private company limited by shares | Dissolved |
| CYWAY ELECTRONICS LIMITED | | Live |
| CYWAY TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| CyWee Hong Kong Limited | Private company limited by shares | Live |
| CyweeMotion HK Limited | Private company limited by shares | Live |
| CYWELL FASHIONS LIMITED | Private company limited by shares | Live |
| CYWILA LIMITED | Private company limited by shares | Dissolved |
| CYWOO REALTY LIMITED | Private company limited by shares | Dissolved |
| CYWOOD ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| CYWORLD CHINA LIMITED | Private company limited by shares | Dissolved |
| CYXIN (HK) Co., Limited | Private company limited by shares | Live |
| C.Y.Y TRADE CO., LIMITED | Private company limited by shares | Live |
| CYY1 Limited | Private company limited by shares | Live |
| CYY2 Limited | Private company limited by shares | Live |
| CYY3 Limited | Private company limited by shares | Live |
| CYY4 Limited | Private company limited by shares | Live |
| CYYS Tea Limited | | Live |
| CYZON LIMITED | Private company limited by shares | Live |