| CHINA HUITONG ENERGY SHARES LIMITED | Private company limited by shares | Dissolved |
| Hons E & M Engineering Co. Limited | Private company limited by shares | Live |
| ON YIU ENGINEERING LIMITED | Private company limited by shares | Live |
| TUNG WAI ENVIRONMENT PROTECTION HONG KONG LIMITED | Private company limited by shares | Live |
| Green Emission Environmental Consultant Limited | Private company limited by shares | Live |
| SZE WAI TRANSPORTATION ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| CHINA OIL ALLIANCE NEW ENERGY LIMITED | Private company limited by shares | Live |
| ENGLEE LIMITED | Private company limited by shares | Live |
| YOKU ENERGY LIMITED | Private company limited by shares | Live |
| DYNASTY DRAGON ENERGY LIMITED | Private company limited by shares | Live |
| JESHUN ENGINEERING LIMITED | Private company limited by shares | Live |
| PLAYGO TOYS ENTERPRISES LIMITED | Private company limited by shares | Live |
| ENERGY GIRL LIMITED | Private company limited by shares | Live |
| GRAND SUMMIT ENGINEERING LIMITED | Private company limited by shares | Live |
| GAIN HILL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ENERGY STAR ENTERTAINMENT PRODUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| GREENSTAR ENVIRONMENTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| COPO ENGINEERING LIMITED | Private company limited by shares | Live |
| Envision Consultancy Limited | Private company limited by shares | Live |
| LYNX ENERGY LIMITED | Private company limited by shares | Live |
| K & P NEW ENERGY INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONGKONG ENZO DIGITAL LIMITED | Private company limited by shares | Live |
| Shenzhen Ground Enterprises Co., Limited | Private company limited by shares | Live |
| KIN YEUNG DESIGN ENGINEERING LIMITED | Private company limited by shares | Live |
| Ningbo Yinzhou Harbour Enterprise Co., Limited | Private company limited by shares | Live |
| KV Enterprises Limited | Private company limited by shares | Live |
| BAILIAN ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| BVS ENTERPRISES LIMITED | Private company limited by shares | Live |
| WAY SKY DESIGN ENGINEERING LIMITED | Private company limited by shares | Live |
| Eco Energy Tech Asia Limited | Private company limited by shares | Live |
| NO. 1 ENGINEERING SERVICE COMPANY LIMITED | Private company limited by shares | Live |
| FORESOON COMPUTER ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| FU AN SI ENVIRONMENTAL INT'L LIMITED | Private company limited by shares | Dissolved |
| PROSPEROUS ENERGY LIMITED | Private company limited by shares | Dissolved |
| Lordray Engineering Company Limited | Private company limited by shares | Live |
| On Tai Waterworks Engineering Company Limited | Private company limited by shares | Live |
| LEGEND CREATIVE ENTERPRISE LIMITED | Private company limited by shares | Live |
| Kam Sum Engineering Company Limited | Private company limited by shares | Live |
| TRIPLE-8 ENTERPRISES LIMITED | Private company limited by shares | Live |
| ENCRYPTHENTICA LIMITED | Private company limited by shares | Live |
| HANG WAI (HVAC) ENGINEERING LIMITED | Private company limited by shares | Live |
| WELLWOOD ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| NEW CHANNEL ENGINEERING LIMITED | Private company limited by shares | Live |
| A-Tech Engineering (Asia) Limited | Private company limited by shares | Live |
| C Y Construction & Engineering Limited | Private company limited by shares | Live |
| GEM STAR ENGINEERING LIMITED | Private company limited by shares | Live |
| CHINA ENERGY ENVIRONMENTAL PROTECTION HIGH-TECH INDUSTRY ASSOCIATION LIMITED | Private company limited by shares | Live |
| MILLION ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Spirit Legend Enterprises Limited | Private company limited by shares | Live |
| GRAND ENERGY (ASIA) ENGINEERING LIMITED | Private company limited by shares | Live |
| JEFAE ENGINEERING LIMITED | Private company limited by shares | Live |
| Regent Grand Enterprises Limited | Private company limited by shares | Live |
| GRAND SURPLUS ENGINEERING LIMITED | Private company limited by shares | Live |
| BBOXX ENERGY CO., LIMITED | Private company limited by shares | Dissolved |
| EASTWIND ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WAROM TECHNOLOGY & ENGINEERING SERVICE LIMITED | Private company limited by shares | Live |
| ZHONGSHAN ENVIRONMENTAL CORPORATION LIMITED | Private company limited by shares | Live |
| Wah Wai Enterprise Company Limited | Private company limited by shares | Live |
| CHESTER ENGINEERING LIMITED | Private company limited by shares | Live |
| KENFORD ENGINEERING LIMITED | Private company limited by shares | Live |
| SKY VICTORY ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Avalon Enterprise Limited | Private company limited by shares | Live |
| ViaComm Enterprise Co. Limited | Private company limited by shares | Live |
| MAC ENERGY ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| ABLE FAME ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| REC Green Energy Solutions Company Limited | Private company limited by shares | Live |
| ABLE GLORY ENGINEERING LIMITED | Private company limited by shares | Live |
| ABLE GOLD ENGINEERING LIMITED | Private company limited by shares | Live |
| LiMao Entertainment Co., Limited | Private company limited by shares | Dissolved |
| EVER WEALTH ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CHAMPION GAIN ENTERPRISES LIMITED | Private company limited by shares | Live |
| LUCKY ENERGY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SanHe Advanced Energy Technologies Limited | Private company limited by shares | Live |
| GOING ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| CONNELL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| FSDB NEW ENERGY GROUP LIMITED | Private company limited by shares | Live |
| TEAM SKY ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| XIN CI NEW ENERGY TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Live |
| YING CHUEN ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| ENJOY WATER PRODUCTS CO., LIMITED | Private company limited by shares | Live |
| CREATIVE LIGHTING ASIA (ENGINEERING) LIMITED | Private company limited by shares | Live |
| GLOBAL ENERGY TRADING LIMITED | Private company limited by shares | Live |
| JAU YEUAN ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| ROCK ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| HOPE ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| RICH ENGINEERING GROUP LIMITED | Private company limited by shares | Dissolved |
| ENJILI INDUSTRIAL INVESTMENT LIMITED | Private company limited by shares | Live |
| SUN KONG LUNG ENTERPRISES LIMITED | Private company limited by shares | Live |
| Merlin Entertainments Hong Kong Limited | Private company limited by shares | Live |
| Hoi Tat Design Engineering Company Limited | Private company limited by shares | Live |
| NICE POWER ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| PO TAK ENERGY MANAGEMENT LIMITED | Private company limited by shares | Live |
| SILVERTECH ENGINEERING LIMITED | Private company limited by shares | Live |
| Technese Enterprises Limited | Private company limited by shares | Live |
| OK ENGINEERING LIMITED | Private company limited by shares | Live |
| YHG ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| 2B ENGINEERING LIMITED | Private company limited by shares | Live |
| UPDATE ENGINEERING LIMITED | Private company limited by shares | Live |
| MEGA ENGINEERING LIMITED | Private company limited by shares | Live |
| TOP FORTUNE ENGINEERING LIMITED | Private company limited by shares | Live |