| SMARTPOWER M&E ENGINEERING (HONG KONG) LIMITED | Private company limited by shares | Live |
| TOP ENERGY INVESTMENT LIMITED | Private company limited by shares | Live |
| BMR ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| GRAND PLACE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| NATUREWISE RENEWABLE ENERGY (HONG KONG) LIMITED | Private company limited by shares | Live |
| ENVO DRAINAGE SYSTEM LIMITED | Private company limited by shares | Dissolved |
| A-ONE ENGINEERING LIMITED | Private company limited by shares | Live |
| WENTON ENGINEERING LIMITED | Private company limited by shares | Live |
| HATCH GLOBAL ENGINEERING PTE LIMITED | Private company limited by shares | Live |
| Wonderful Engineering Limited | Private company limited by shares | Live |
| ENFORA HK LIMITED | Private company limited by shares | Dissolved |
| NOW ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| USI Enterprise Limited | Public company limited by shares | Live |
| SUN HONEST ENTERPRISE LIMITED | Private company limited by shares | Live |
| DRAGON BEST ENTERPRISE LIMITED | Private company limited by shares | Live |
| TONEX RENEWABLE ENERGY LIMITED | Private company limited by shares | Dissolved |
| HONGKONG ENERTECH GROUP LIMITED | Private company limited by shares | Dissolved |
| HOI LAP ENVIRONMENTAL ENERGY (HK) INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| HOME-SWEET-HOME ENTERPRISES LIMITED | Private company limited by shares | Live |
| HALITECH ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| ENERGY EAST LIMITED | Private company limited by shares | Live |
| HONOR WELL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CREATIVE WEALTH ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| We Entertainment Limited | Private company limited by shares | Live |
| F & L Enterprise Limited | Private company limited by shares | Live |
| TONGKAI ENGINEERING INVESTMENT & MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| EVERWIN ENGINEERING TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Longmen Engineering Limited | Private company limited by shares | Live |
| Encoral Limited | Private company limited by shares | Live |
| CHINA ENVIRONMENT TECHNOLOGY GROUP LIMITED | Private company limited by shares | Dissolved |
| OCT ENTERPRISES LIMITED | Private company limited by shares | Live |
| JAMAY ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| WAH MAN ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| EAST SILVER ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CAPITAL EXPRESS ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| EPC ENTERPRISES LIMITED | Private company limited by shares | Live |
| ENVIRO PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| WELL HONEST ENTERPRISE LIMITED | Private company limited by shares | Live |
| JOY DRAGON ENTERPRISE LIMITED | Private company limited by shares | Live |
| LONG DRAGON ENGINEERING LIMITED | Private company limited by shares | Live |
| ENERGY II LIMITED | Private company limited by shares | Dissolved |
| LONG DRAGON ENTERPRISES LIMITED | Private company limited by shares | Live |
| ANKE ENERGY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG ENJOY DEVELOPMENT LIMITED | Private company limited by shares | Live |
| MOREWELL ENGINEERING LIMITED | Private company limited by shares | Live |
| ECO-8 Energy Systems Limited | Private company limited by shares | Live |
| WAI YIP ENVIRONMENTAL CLEANING COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHINA ENVIRONMENT PROTECTION VOLUNTEERS ASSOCIATION LIMITED | Private company limited by shares | Dissolved |
| HO YIP TRADING ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Bristow Engineering Limited | Private company limited by shares | Dissolved |
| China Fortune Engine Consultancy Limited | Private company limited by shares | Dissolved |
| PENTAD ENGINEERING LIMITED | Private company limited by shares | Live |
| HAI YUE ENERGY RESOURCES INVESTMENT LIMITED | Private company limited by shares | Live |
| TOP SIGN ENTERPRISES LIMITED | Private company limited by shares | Live |
| QINGDAO HAIER NEW ENERGY LIMITED | Private company limited by shares | Dissolved |
| ENLIGHTENMENT LIMITED | Private company limited by shares | Live |
| HO YIN ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ENVIRONMENT TECHNOLOGY ENERGY SERVICES CO. LIMITED | Private company limited by shares | Dissolved |
| MAIN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TOPONE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SUN RIVER ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| FIRST ORIENTAL ENTERPRISES LIMITED | Private company limited by shares | Live |
| Wei Bio Energy Co., Limited | Private company limited by shares | Live |
| CHAU KEE ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HENWEIT ENGINE PARTS CO., LIMITED | Private company limited by shares | Live |
| AEL ENVIRONMENTAL RESOURCES LIMITED | Private company limited by shares | Live |
| KA HING INDUSTRIAL ENVIRONMENTAL LIMITED | Private company limited by shares | Live |
| WELFREY ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Eugenic Engineering Limited | Private company limited by shares | Live |
| BEST WISDOM ENGINEERING LIMITED | Private company limited by shares | Live |
| UNI-ASIA CONSTRUCTION AND ENGINEERING LIMITED | Private company limited by shares | Live |
| SUN GANG ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Enderun International Holdings Limited | Private company limited by shares | Dissolved |
| BNH ENTERPRISE LIMITED | Private company limited by shares | Live |
| STRONG ALLIED ENGINEERING LIMITED | Private company limited by shares | Live |
| GRAND CHINA GLOBAL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| KP ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| HANG KEI ENGINEERING SERVICE LIMITED | Private company limited by shares | Live |
| SKY POWER CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| STAND LUCK CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SMART ON CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| 01 Enterprise Limited | Private company limited by shares | Live |
| TONG KEE DRAINAGE ENGINEERING LIMITED | Private company limited by shares | Live |
| TOP GREEN ENVIRONMENT TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| APAC Resources Enterprises Limited | Private company limited by shares | Dissolved |
| HK AA MECHANICAL ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| TOP UP ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| FUK WAH TRAFFIC ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| INOUE ENTERPRISE LIMITED | Private company limited by shares | Live |
| TECH ENGINE INTERNATIONAL (HK) LIMITED | Private company limited by shares | Dissolved |
| Birket Engineering Asia Limited | Private company limited by shares | Live |
| PINE ENGINEERING LIMITED | Private company limited by shares | Live |
| KAVEN ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| EAST CHINA ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WELLTOP ENGINEERING LIMITED | Private company limited by shares | Live |
| B&H ENTERPRISE LIMITED | Private company limited by shares | Live |
| APAC Resources Energy Limited | Private company limited by shares | Dissolved |
| BIOMAX YANGZHOU ENVIRONMENT PARK INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GAIN RICH ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| GOLDRICH ENGINEERING LIMITED | Private company limited by shares | Dissolved |