| HONG KONG C.Y.K. CLUB LIMITED | Company limited by guarantee | Dissolved |
| C.Y.K. Sourcing Co., Limited | Private company limited by shares | Live |
| CYKAKA TRADE LIMITED | Private company limited by shares | Live |
| CYKing Limited | Private company limited by shares | Live |
| CYKO LIMITED | | Live |
| CYKO COMPUTER LIMITED | Private company limited by shares | Dissolved |
| CYKON TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Cykorp Limited | Private company limited by shares | Live |
| CYKP LIMITED | | Live |
| CYKT Limited | Private company limited by shares | Live |