| JOYKEY CORPORATION LIMITED | Private company limited by shares | Dissolved |
| JOYKEY CORPORATION LIMITED | Private company limited by shares | Live |
| JOYKEY ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| JOYKEY INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SHANGHAI JOYKEY RICHFUN NEW PIPES LIMITED | Private company limited by shares | Dissolved |
| JOYKEY TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| JOYKEY TECHNOLOGY LIMITED | Private company limited by shares | Live |
| JOYKEY INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |