| Ener-t Technology Limited | Private company limited by shares | Live |
| ENERTEC COMPANY LIMITED | Private company limited by shares | Dissolved |
| ENERTECH LIMITED | Private company limited by shares | Dissolved |
| Enertech LLC Limited | Private company limited by shares | Live |
| ADG EnerTech Limited | Private company limited by shares | Live |
| ENERTECH ASIA LIMITED | Private company limited by shares | Live |
| EnerTech (China) Co., Limited | Private company limited by shares | Live |
| Enertech Energy Technology Co., Limited | Private company limited by shares | Live |
| ENERTECH SOLUTION CO., LIMITED | Private company limited by shares | Dissolved |
| ENER-TECH CONSULTANT ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HK FUSION ENERTECH DEVELOPMENT CO., LIMITED | Private company limited by shares | Live |
| FUSION ENERTECH DEVELOPMENT CO., LIMITED | | Live |
| CHINA ENERTECH INDUSTRIAL DEVELOPMENT CO., LIMITED | Private company limited by shares | Live |
| Trinity United EnerTech Development Limited | Private company limited by shares | Live |
| EnerTech Energy Limited | Private company limited by shares | Dissolved |
| FABIT Enertech HK Company Limited | Private company limited by shares | Live |
| ENERTECH GROUP LIMITED | Private company limited by shares | Dissolved |
| SOLAR ENERTECH (HK) CORPORATION, LIMITED | Private company limited by shares | Live |
| Enertech Holding Limited | Private company limited by shares | Live |
| ENERTECH ASIA HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| ENERTECH HONG KONG LIMITED | Private company limited by shares | Dissolved |
| HONGKONG ENERTECH GROUP LIMITED | Private company limited by shares | Dissolved |
| ASIA ENERTECH INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| ENERTECH INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| ENERTECH INTERNATIONAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ENERTECH INTERNATIONAL SALES LIMITED | Private company limited by shares | Live |
| MODERN ENERTECH CO., LIMITED | Private company limited by shares | Live |
| MODERN ENERTECH GROUP LIMITED | Private company limited by shares | Dissolved |
| United Enertech Services Limited | Private company limited by shares | Dissolved |
| ENERTECH POWER SOLUTION COMPANY LIMITED | Private company limited by shares | Live |
| ENERTECH TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Enerth Global Limited | Private company limited by shares | Live |
| Enertheus Limited | Private company limited by shares | Live |
| CG Enertrade Limited | Private company limited by shares | Live |
| ENERTRON COMPANY LIMITED | Private company limited by shares | Dissolved |
| ENERTRUSDY INTERNATIONAL GROUP (HONGKONG) LIMITED | Private company limited by shares | Live |