| GERMANY WOYUAN LUBRICATING OIL LIMITED | Private company limited by shares | Live |
| LUDAO LUBRICATING OIL (WUXI) LIMITED | Private company limited by shares | Live |
| USA XUEFULONG LUBRICATING OIL (CHINA) LIMITED | Private company limited by shares | Live |
| AMERICA YINFU LUBRICATING OIL LIMITED | Private company limited by shares | Live |
| HK YING RUN SHENG BA LUBRICATING OIL CO., LIMITED | Private company limited by shares | Live |
| HK YINGGEMALI LUBRICATING OIL LIMITED | Private company limited by shares | Live |
| GERMANY YOUJIANGJUN LUBRICATING LIMITED | Private company limited by shares | Live |
| ZHONGTAI LUBRICATING OIL STOCK LIMITED | Private company limited by shares | Live |
| ZIMMARK LUBRICATING OIL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| HK ZONGLONG LUBRICATING OIL LIMITED | Private company limited by shares | Live |