| RUINENG ENERGY GROUP (HONGKONG) LIMITED | Private company limited by shares | Live |
| Hong kong ruineng Industry Co., Limited | | Live |
| Ruineng Electric (Hong Kong) Limited | Private company limited by shares | Live |
| HONG KONG RUINENG TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Ruineng Industrial Limited | Private company limited by shares | Live |
| Ruineng Technology Co., Limited | Private company limited by shares | Live |
| HK Ruineng Wisdom Technology Co., Limited | Private company limited by shares | Live |
| RUINENG ELECTRONIC TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| YIDA RUINENG ELECTRIC TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live Commenced dormancy on 24-Feb-2016 |