| Sparta Engineering Company Limited | Private company limited by shares | Dissolved |
| USA ADB ENVIRONMENTAL PROTECTION TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| TYW Enterprises Limited | Private company limited by shares | Live |
| RAYNU ENERGY LIMITED | Private company limited by shares | Dissolved |
| KREST ENERGY LIMITED | Private company limited by shares | Live |
| SunSi Energies Hong Kong Limited | Private company limited by shares | Live |
| NGAI KO ENTERPRISE LIMITED | Private company limited by shares | Live |
| MING LIN ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| ETHANOL CHINA ENERGY COMPANY LIMITED | Private company limited by shares | Live |
| S&R ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| HANG SENG ENGINEERING (CHINA-HK) LIMITED | Private company limited by shares | Dissolved |
| ADVANCED ENERGY SYSTEM COMPANY LIMITED | Private company limited by shares | Live |
| Energy Asia Limited | Private company limited by shares | Dissolved |
| YEE WO ENGINEERING (HONG KONG) CO. LIMITED | Private company limited by shares | Dissolved |
| HK INTERNATIONAL ENVIRONMENT EQUIPMENT TECHNOLOGY (GROUP) LIMITED | Private company limited by shares | Dissolved |
| SMART ENGINE COMPANY LIMITED | Private company limited by shares | Dissolved |
| HK HENRY ELECTRICAL AND MECHANICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| Global Energy Solutions Limited | Private company limited by shares | Live |
| ONE B ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| FULL MARKS ENGINEERING SERVICE LIMITED | Private company limited by shares | Live |
| ENVIRO-ENERGY LIMITED | Private company limited by shares | Live |
| Mega Engineering Group Limited | Private company limited by shares | Live |
| ENRICHING DOMAIN (HONG KONG) LIMITED | Private company limited by shares | Live |
| XU'S ENTERPRISE GROUP LIMITED | Private company limited by shares | Live |
| GRACE COMPUTER ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| DYNASTY ENTERPRISES (ASIA) LIMITED | Private company limited by shares | Live |
| Pacific Asia Petroleum Energy Limited | Private company limited by shares | Dissolved |
| F&K Energy I Hong Kong Limited | Private company limited by shares | Dissolved |
| SUNLIGHT ENVIROTECH CO., LIMITED | Private company limited by shares | Live |
| CAMEL ENGINEERING LIMITED | Private company limited by shares | Live |
| J&M ENTERPRISES LIMITED | Private company limited by shares | Live |
| ENERGY THERMAL CO., LIMITED | Private company limited by shares | Dissolved |
| SOLVEST SOLAR ENERGY LIMITED | Private company limited by shares | Dissolved |
| DHK Environment Design Group Limited | Private company limited by shares | Live |
| TIN LIK AIR CONDITIONING ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ENSKILDA FUTURES LIMITED | Private company limited by shares | Dissolved |
| VARCO ENERGY LIMITED | Private company limited by shares | Dissolved |
| Wing Tai Asia Engineering Limited | Private company limited by shares | Live |
| New Century Engineering Limited | Private company limited by shares | Live |
| Tennyson Engineering Limited | Private company limited by shares | Dissolved |
| TECH ENGINEERING LIMITED | Private company limited by shares | Live |
| OCEAN LINK ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CAPITAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| PAK CHUEN CONSTRUCTION ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| CHI MAN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TITAN ENGINEERING GROUP LIMITED | Private company limited by shares | Dissolved |
| Entrepreneur Technology Limited | Private company limited by shares | Dissolved |
| FIRSTRADE ENERGY LIMITED | Private company limited by shares | Dissolved |
| TIM YIP ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| AIT ENGINEERING LIMITED | Private company limited by shares | Live |
| Titan Energy Limited | Private company limited by shares | Live |
| CW ENGINEERING LIMITED | Private company limited by shares | Live |
| POWLEADING (ASIA) ENERGY COMPANY LIMITED | Private company limited by shares | Live |
| BANYANG ENVIRONMENT TECHNOLOGIES (INT'L.) LIMITED | Private company limited by shares | Dissolved |
| Riche Environmental Energy Limited | Private company limited by shares | Live |
| SUI LEE MARBLE ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| OGLE ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| Asia Renewable Energy Solutions Limited | Private company limited by shares | Live |
| HANG WAI ENVIRONMENT SERVICE CO., LIMITED | Private company limited by shares | Live |
| TOP VENTURE ENERGY LIMITED | Private company limited by shares | Live |
| NEW ENERGY TRADE LIMITED | Private company limited by shares | Dissolved |
| GRACE STAR ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ENGLAND ROYAL EAU GROUP INTERNATIONAL ASSET CUSTODY LIMITED | Private company limited by shares | Dissolved |
| Powerful Environment Limited | Private company limited by shares | Dissolved |
| Wolf Engineering and Maintenance Service Limited | Private company limited by shares | Dissolved |
| Kam Ming Engineering (China) Limited | Private company limited by shares | Dissolved |
| CAD Design And Engineering Company Limited | Private company limited by shares | Dissolved |
| ASCENT SPORTS & ENTERTAINMENT COMPANY LIMITED | Private company limited by shares | Live |
| Enfocus Engineering Company Limited | Private company limited by shares | Dissolved |
| TUNG MING ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| MEGA FORD ENTERPRISE LIMITED | Private company limited by shares | Live |
| Enfinity Asia Pacific Limited | Private company limited by shares | Live |
| TOP SKY CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| HST ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| WELL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| RICH CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| FRIENDLY ENERGY (HONG KONG) LIMITED | Private company limited by shares | Live |
| SMART ENERGY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| COOPERATE ENVIRONMENT LIMITED | Private company limited by shares | Live |
| MAYOR ENTREPRENEURS CLUBS CO., LIMITED | Private company limited by shares | Live |
| GREENS NEW ENERGY LIMITED | Private company limited by shares | Live |
| HKT Enterprise Limited | Private company limited by shares | Live |
| Pro Enrich International Co., LIMITED | Private company limited by shares | Live |
| JJM ENTERPRISE LIMITED | Private company limited by shares | Live |
| Energy Recovery Products Limited | Private company limited by shares | Live |
| ENRICH PLASTICS (CHINA/HK) LIMITED | Private company limited by shares | Dissolved |
| Shujin Environmental Technology Limited | Private company limited by shares | Dissolved |
| VIGA MARINE ENGINEERING LIMITED | Private company limited by shares | Live |
| Mission Hills Leisure Enterprises Limited | Private company limited by shares | Live |
| GREENLAND ENVIRONMENTAL LIMITED | Private company limited by shares | Dissolved |
| HO FAI CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| KUNG PAO SPORTS AND ENTERTAINMENT LIMITED | Private company limited by shares | Dissolved |
| G&F Environment Design Limited | Private company limited by shares | Dissolved |
| Power Top Engineering Limited | Private company limited by shares | Live |
| ENBAI TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| EURO ENTERPRISE LIMITED | Private company limited by shares | Live |
| RICH CAPITAL ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| ABT ENERGY LIMITED | Private company limited by shares | Dissolved |
| FK ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Global Environmental Energy Corp Limited | Private company limited by shares | Dissolved |