| RIO21 DEVELOPMENT LIMITED | Private company limited by shares | Live |
| RIOBASE LIMITED | Private company limited by shares | Dissolved |
| RIOCAL ASIA LIMITED | Private company limited by shares | Live |
| RIOCEN LIMITED | Private company limited by shares | Live |
| RIOCITY LIMITED | Private company limited by shares | Live |
| RIOCYCLE COMPANY LIMITED | Private company limited by shares | Dissolved |
| RIOFORCE LIMITED | Private company limited by shares | Dissolved |
| Rioganic Limited | Private company limited by shares | Live |
| RIOGIL LIMITED | Private company limited by shares | Live |
| RIOHAN TRADING LIMITED | Private company limited by shares | Live |
| RIOHK COMPANY LIMITED | Private company limited by shares | Live |
| RIO-IMAGE INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| RIOJA GROUP LIMITED | Private company limited by shares | Live |
| Spain Rioja International Group Co., Limited | Private company limited by shares | Dissolved |
| RIOJA INTERNATIONAL TRADE CO., LIMITED | Private company limited by shares | Live |
| RIOJA (HONG KONG) TRADING INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Riola Business Limited | | Live |
| RIOLAMA COMPANY LIMITED | Private company limited by shares | Dissolved |
| RIOLAND LIMITED | Private company limited by shares | Live |
| RioLin Limited | Private company limited by shares | Live |
| RIOLOY LIMITED | Private company limited by shares | Live |
| RIOMANTIN LIMITED | Private company limited by shares | Dissolved |
| RIOMAT LIMITED | Private company limited by shares | Dissolved |
| RIOMTEQ LIMITED | | Live |
| RION LIMITED | Private company limited by shares | Dissolved |
| RIONDA TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| RIONE X LIMITED | Private company limited by shares | Dissolved |
| RIONES PACIFIC LIMITED | Private company limited by shares | Live |
| RIONLON COMPANY LIMITED | Private company limited by shares | Live |
| RIONLON DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Live |
| RIO-PACK (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| RIOPORT LIMITED | Private company limited by shares | Dissolved |
| RioPOS Technology Limited | Private company limited by shares | Live |
| RIOPOWER LIMITED | Private company limited by shares | Dissolved |
| TOP RIOR (HK) TECH Co., LIMITED | Private company limited by shares | Live |
| Rior Technology Limited | Private company limited by shares | Live |
| RIORDAN INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Rios Limited | Private company limited by shares | Live |
| Rios Trading Import And Export Co., Limited | | Live |
| RIOS EXPRESS TRADING COMPANY LIMITED | Private company limited by shares | Live |
| GINA RIOS (HK) LIMITED -THE- | Private company limited by shares | Live |
| RIOS AUTO PARTS (ZHUHAI) CO., LIMITED | Private company limited by shares | Live |
| Riosmarine Technology Service Limited | Private company limited by shares | Live |
| RIOSMITH LIMITED | Private company limited by shares | Dissolved |
| RioSoccer Group Limited | Private company limited by shares | Live |
| RIOSPAN LIMITED | Private company limited by shares | Dissolved |
| RIOSPAN.COM LIMITED | Private company limited by shares | Dissolved |
| RIOSPRING INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| RIOSQUANT (ASIA) LIMITED | Private company limited by shares | Live |
| RIOSTAR LIMITED | Private company limited by shares | Live Ceased dormancy on 08-Jul-2010 |
| RIOTINTO INTERNATIONAL (CHINA) CORPORATION LIMITED | Private company limited by shares | Dissolved |
| RioTouch Technology Company Limited | Private company limited by shares | Live |
| Riots International Limited | | Live |
| RIOWIN LIMITED | Private company limited by shares | Dissolved |
| RIOWORLD LIMITED | Private company limited by shares | Live |