| SUNGEN EPC Limited | Private company limited by shares | Live |
| SungEn Industry Co., Limited | Private company limited by shares | Live |
| SUNGEN Energy Limited | Private company limited by shares | Live |
| SUNGEN ENERGY INVESTMENT HOLDING LIMITED | Private company limited by shares | Live |
| Sungen Group Limited | Private company limited by shares | Live |
| SUNGEN Investments Holding Limited | Private company limited by shares | Live |
| SUNGEN ENERGY MANAGEMENT CO., LIMITED | Private company limited by shares | Live |
| SUNGEN SYSTEM COMPANY LIMITED | Private company limited by shares | Live |
| SUNGENT LIMITED | Private company limited by shares | Dissolved |