| O.S.S. Oriental Service and Sourcing Limited | Private company limited by shares | Dissolved |
| OSSA LIMITED | Private company limited by shares | Dissolved |
| Germany OSSDEN Intelligent Technology Co., Limited | Private company limited by shares | Live |
| OSSEN LIMITED | Private company limited by shares | Live |
| OSSEN ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| OSSEN INTERNATIONAL CO., LIMITED | | Live |
| SHENZHEN OSSEN ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| OSSEN GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| OSSEN GROUP CO., LIMITED | Private company limited by shares | Live |
| OSSEN TELECOMUNICATION TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| OSSEO LIMITED | Private company limited by shares | Dissolved |
| OSSEODENT LIMITED | Private company limited by shares | Dissolved |
| OSSF (HONG KONG) LIMITED | Private company limited by shares | Live |
| OSSG LIMITED | Private company limited by shares | Live |
| OSSHA LIMITED | Private company limited by shares | Dissolved |
| Ossian Limited | Private company limited by shares | Live |
| Ossic HK Limited | Private company limited by shares | Live |
| OSSINA LIMITED | Private company limited by shares | Live |
| OSSINGTON LIMITED | Private company limited by shares | Dissolved |
| OSSINING LIMITED | Private company limited by shares | Dissolved |
| ITALY OSSLUN INT'L GROUP LIMITED | Private company limited by shares | Dissolved |
| OSSO & COMPANY LIMITED | Private company limited by shares | Dissolved |
| OSSO LIMITED | Private company limited by shares | Live |
| OSSO BATHROOM TECH LIMITED | Private company limited by shares | Live |
| OSSO SANITARY WARE (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| OSSOTECH LIMITED | Private company limited by shares | Live |
| OssPage Company Limited | Private company limited by shares | Live |
| OssPoly Limited | Private company limited by shares | Live |
| OSSSID Studio Limited | | Live |
| OSST PU TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Osstar Optoelectronics Co., Limited | Private company limited by shares | Live |
| OSSY LIMITED | Private company limited by shares | Live |
| OSSYANFILM LIMITED | Private company limited by shares | Dissolved |