| WEALTHY ART ENTERPRISES LIMITED | Private company limited by shares | Live |
| APOLLO ENERGY CO., LIMITED | Private company limited by shares | Live |
| RSF VALVE ENGINEERING (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| SNE Engineering Company Limited | Private company limited by shares | Live |
| A & F ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| UNITEX GOODS ENTERPRISES LIMITED | Private company limited by shares | Live |
| EniSav Limited | Private company limited by shares | Live |
| Advanced Electric Energy Limited | Private company limited by shares | Live |
| YIP'S BROTHER ENTERPRISES GROUP LIMITED | Private company limited by shares | Live |
| XIN LI ENERGY-SAVING TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| RI ENTERPRISE LIMITED | Private company limited by shares | Live |
| SKY PRIDE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WELL FLOORING & ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| China Population Resource Environment Foundation Limited | Private company limited by shares | Dissolved |
| Natural Resources Environment Protection Industries Limited | Private company limited by shares | Dissolved |
| ULTIMATE ENERGY TECHNOLOGY LIMITED | Private company limited by shares | Live |
| WISE GAIN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WIN VIEW ENGINEERING LIMITED | Private company limited by shares | Live |
| ART BLOOM ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TIME WEALTH ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| YEEYUAN ENTERPRISES CO., LIMITED | Private company limited by shares | Dissolved |
| TIME BEST CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| SUN KEE ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HK GG INTERACTIVE ENTERTAINMENT LIMITED | Private company limited by shares | Dissolved |
| GUANHONG ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| TRIPLE POWER ENGINEERING LIMITED | Private company limited by shares | Live |
| Ker Enterprise Limited | Private company limited by shares | Dissolved |
| YING YIU ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Y. L. WATERPROOF ENGINEERING LIMITED | Private company limited by shares | Live |
| DIYAR ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| AGOGA ENGINEERING LIMITED | Private company limited by shares | Live |
| TENZONES DIGITAL ENTERTAINMENT CO., LIMITED | Private company limited by shares | Live |
| SUNSHINE TECHNOLOGY ENGINEERING LIMITED | Private company limited by shares | Live |
| GA Investment Energy Company Limited | Private company limited by shares | Live |
| SMART ENERGY INVESTMENT LIMITED | Private company limited by shares | Live |
| Enfinity HK1 Limited | Private company limited by shares | Live |
| Chi Mei Engineering Co. Limited | Private company limited by shares | Live |
| CALCIOR ENVIRONMENTAL LIMITED | Private company limited by shares | Live |
| YEE YUE ENGINEERING NETWORK LIMITED | Private company limited by shares | Dissolved |
| Win Fat Engineering (Hong Kong) Limited | Private company limited by shares | Live |
| HONGKONG NEW AGE ENVIRONMENT TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| DNL ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BERICH ENTERPRISES COMPANY LIMITED | Private company limited by shares | Live |
| WANG TAT TRANSPORTATION ENGINEERING LIMITED | Private company limited by shares | Live |
| ENYA KITCHEN LIMITED | Private company limited by shares | Live |
| Jet Fai Construction Engineering Limited | Private company limited by shares | Live |
| JINPAO ENTERPRISES LIMITED | Private company limited by shares | Live |
| ENERGY LINKAGE LIMITED | Private company limited by shares | Live |
| JOY ENERGY LIMITED | Private company limited by shares | Dissolved |
| 36 ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| GHI ENTERPRISE LIMITED | Private company limited by shares | Live |
| AMBITION ENGINEERING LIMITED | Private company limited by shares | Live |
| CHINA ENERGY UTILIZATION LIMITED | Private company limited by shares | Live |
| FULLER ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Great Engine (HK) Technologies Limited | Private company limited by shares | Live |
| HengLi Energy Group Limited | Private company limited by shares | Live |
| VISHINE ENTERPRISE LIMITED | Private company limited by shares | Live |
| NEW ENERGY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| MILESTONE DESIGN AND ENGINEERING LIMITED | Private company limited by shares | Live |
| K & B ENTERPRISE LIMITED | Private company limited by shares | Live |
| ACT Engineering Company Limited | Private company limited by shares | Live |
| HANLONG ENERGY LIMITED | Private company limited by shares | Live |
| ML Engineering Company Limited | Private company limited by shares | Dissolved |
| VAST WISDOM ENVIRONMENTAL LIMITED | Private company limited by shares | Dissolved |
| ALLIANCE ENERGY GROUP LIMITED | Private company limited by shares | Live |
| CYPLUS ENGINEERING LIMITED | Private company limited by shares | Live |
| GOLD ENERGY LIMITED | Private company limited by shares | Live |
| Ecota Environmental Limited | Private company limited by shares | Live |
| TAT ON MOTOR ENGINEERING LIMITED | Private company limited by shares | Live |
| G Enesix Limited | Private company limited by shares | Live |
| HONEST COOPERATION ENTERPRISES LIMITED | Private company limited by shares | Live |
| ENERGY SERVICE COOPERATION TRADE CO., LIMITED | Private company limited by shares | Dissolved |
| MEJU ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| TIMES ENTERTAINMENT LIMITED | Private company limited by shares | Dissolved |
| ELEMENTAL ENERGY TECHNOLOGIES (CHINA) LIMITED | Private company limited by shares | Live |
| YUK PAK SITE INVESTIGATION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CHUNG WUI ENGINEERING TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| GLORIOUS STAR ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LAP Engineering (Hong Kong) Co. Limited | Private company limited by shares | Dissolved |
| VOBA Energies Company Limited | Private company limited by shares | Live |
| GRAND BLOOM ENTERPRISE LIMITED | Private company limited by shares | Live |
| GOOD CENTURY ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| GEARFUN BRIDGEWERKZ ENTERPRISES CO., LIMITED | Private company limited by shares | Live |
| YKT ENTERPRISE LIMITED | Private company limited by shares | Live |
| FAST RICH ENGINEERING LIMITED | Private company limited by shares | Live |
| ABLE DRAGON ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SPEEDILY ENTERPRISES CO., LIMITED | Private company limited by shares | Dissolved |
| ALLIED WAY ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| MINWA GREEN ENERGY ELECTRONICS COMPANY LIMITED | Private company limited by shares | Live |
| RICKY ENTERPRISES LIMITED | Private company limited by shares | Live |
| NEW ENGINEERING LIMITED | Private company limited by shares | Live |
| TIK MAN ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| TERS ENVIRONMENTAL (HOLDING) GROUP COMPANY, LIMITED | Private company limited by shares | Live |
| FWD Enterprises Limited | Private company limited by shares | Live |
| ITERATIVE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| MED Enterprises Limited | Private company limited by shares | Live |
| Energy Alternatives Limited | Private company limited by shares | Live |
| SysDe Engineering service Co., Limited | Private company limited by shares | Dissolved |
| ENGAGING MINDS LIMITED | Private company limited by shares | Live |
| ZHONGHUA CROSS-STRAIT ENVIRONMENTAL PROTECTION ASSOCIATION LIMITED | Private company limited by shares | Live |