| JOINCO COMPANY LIMITED | Private company limited by shares | Live |
| JOINCO DEVELOPMENT LIMITED | Private company limited by shares | Live |
| JOINCO PROPERTIES DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| JOINCO ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| JOINCO ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| JOINCO (H.K.) LIMITED | Private company limited by shares | Dissolved |
| JOINCO (H.K.) LIMITED | Private company limited by shares | Live |
| JOINCO TRADING (HK) LIMITED | Private company limited by shares | Dissolved |
| JOINCO HOLDINGS LIMITED | Private company limited by shares | Live |
| JOINCO (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| JOINCO INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| JOINCO INDUSTRIAL LIMITED | Private company limited by shares | Live |
| JOINCO INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| JOINCO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| JOINCO INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| JOINCO INVESTMENT LIMITED | Private company limited by shares | Live |
| JOINCO MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| JOINCO TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| JOINCO TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| JOINCO TRADING LIMITED | Private company limited by shares | Dissolved |
| JOINCO TRADING LIMITED | Private company limited by shares | Live |
| JOIN-COM LIMITED | Private company limited by shares | Dissolved |
| JOINCOM CHINA LIMITED | Private company limited by shares | Live |
| JOIN-COM (HARDWARE) TRADING COMPANY LIMITED | Private company limited by shares | Live |
| JOINCOM INTERNATIONAL (HK) LIMITED | Private company limited by shares | Live |
| Joincomm International Limited | Private company limited by shares | Dissolved |
| JOINCON INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| JOINCORP LIMITED | Private company limited by shares | Dissolved |
| JOINCORP LIMITED | Private company limited by shares | Live |
| JOINCORP INTERNATIONAL LIMITED | Private company limited by shares | Live |