| TIANNENG POWER (HONG KONG) LIMITED | Private company limited by shares | Live |
| TIANNENG POWER SUPPLY LIMITED | Private company limited by shares | Dissolved |
| SHANGHAI TIANNENG NEW ENERG GROUP LIMITED | | Live |
| SHANGHAI TIANNENG POWER GROUP LIMITED | Private company limited by shares | Live |
| SHANGHAI TIANNENG POWER SUPPLY LIMITED | Private company limited by shares | Live |
| SHANGHAI TIANNENG ENERGY POWER TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SHANGHAI TIANNENG TEZHONG POWER SUPPLY LIMITED | Private company limited by shares | Dissolved |