| RYE, EVANS & CO. LIMITED | Private company limited by shares | Dissolved |
| RYEDALE LIMITED | Private company limited by shares | Live |
| RYEE ELECTRONICS (HONG KONG) LIMITED | Private company limited by shares | Live |
| RYEFIELD LIMITED | Private company limited by shares | Dissolved |
| Ryefone Inc. Limited | Private company limited by shares | Live |
| RYEGATE LIMITED | Private company limited by shares | Dissolved |
| RYEL PHOTOELECTRIC CO., LIMITED | Private company limited by shares | Live |
| RYEL (HK) PHOTOELECTRIC CO., LIMITED | Private company limited by shares | Live |
| RYELAND INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| RYEN (CHINA) LIMITED | Private company limited by shares | Live |
| RYEN CO., LIMITED | Private company limited by shares | Live |
| RYER LIMITED | Private company limited by shares | Dissolved |
| RYER LIMITED | Private company limited by shares | Live |
| RYERSON OF CHINA LIMITED | Private company limited by shares | Dissolved |
| Ryerson China Investment Company Limited | Private company limited by shares | Dissolved |
| RYERSON CONSULTANTS LIMITED | Private company limited by shares | Live |
| RYERSON ENTERPRISE LIMITED | Private company limited by shares | Live |
| RYERSON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| RYERSON INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| Ryerson Management Limited | Private company limited by shares | Live |
| RYERSON INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| RyeT Entertainment Limited | Private company limited by shares | Live |
| RyeVape Technology (HK) Co., Limited | Private company limited by shares | Live |