| Kai Ruilong Limited | Private company limited by shares | Live |
| Ruilong Components Limited | | Live |
| RUILONG TRADE LIMITED | Private company limited by shares | Live |
| RUILONGFENG LIMITED | | Live |
| RUILONGSHENG LIMITED | Private company limited by shares | Live |
| RUILONGSHENG TRADE CO., LIMITED | Private company limited by shares | Live |
| Hong Kong Ruilongxiang Trading Co., Limited | Private company limited by shares | Live |
| RUILONGXIANG PETROLEUM MACHINERY CO., LIMITED | Private company limited by shares | Live |
| RUILONGXING ELECTRONICS TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |