| SKYMAN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ENERGY LOGIC HK LIMITED | Private company limited by shares | Dissolved |
| EVERFORD ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LEGEND CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TITAN MACHINERY & ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| VICTORY OCEAN ENTERPRISES LIMITED | Private company limited by shares | Live |
| Qing Tong Environmental Education Foundation Limited | Company limited by guarantee | Dissolved |
| BIOMAX GREEN ENERGY (GUANGZHOU) SERVICES INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| KIN YIP ENERGY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SSS ENTERPRISE LIMITED | Private company limited by shares | Live |
| ORIENT PACIFIC ENGINEERING LIMITED | Private company limited by shares | Live |
| EVERBASE ENTERPRISES LIMITED | Private company limited by shares | Live |
| TREASURE ENGINEERING LIMITED | Private company limited by shares | Live |
| FLY DRAGON ENTERPRISE LIMITED | Private company limited by shares | Live |
| GRAND CREATION ENGINEERING LIMITED | Private company limited by shares | Live |
| WELL CREATION ENGINEERING LIMITED | Private company limited by shares | Live |
| ASCENT ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SILVER SMART ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CHINA ENERGY CONSERVATION INDUSTRY LIMITED | Private company limited by shares | Live |
| CHINA ENVIRONMENTAL PROTECTION INDUSTRY LIMITED | Private company limited by shares | Dissolved |
| JIAMAO ENTERPRISE CO. LIMITED | Private company limited by shares | Live |
| QUNQIN INT'L ENVIRONMENT PROTECTION TECH. LIMITED | Private company limited by shares | Dissolved |
| GLORY MARINE ENGINEERING LIMITED | Private company limited by shares | Live |
| CONTRACT ENGINEERING & SUPPLYING (PTY) LIMITED | Private company limited by shares | Live |
| SKY PRO ENGINEERING LIMITED | Private company limited by shares | Live |
| HK HIGHMIEN SOLAR ENERGY TECHNOLOGY DEV. LIMITED | Private company limited by shares | Dissolved |
| CHINA ENVIRONMENT GROUP HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| YUAN YANG ENTERPRISES LIMITED | Private company limited by shares | Live |
| Enviro Greenwood Hong Kong Limited | Private company limited by shares | Dissolved |
| FU YAN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SYC ENG. LIMITED | Private company limited by shares | Live |
| H.G. ENERGY INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| KAI KIN DESIGN & ENGINEERING LIMITED | Private company limited by shares | Live |
| ENERGY SAVING AND ENVIRONMENT CONCERN ALLIANCE LIMITED | Company limited by guarantee | Live |
| TIN HO CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| KABEW ENGINEERING LIMITED | Private company limited by shares | Live |
| Baosen Environmental Protection Technology Company Limited | Private company limited by shares | Dissolved |
| AROMA ENTERPRISE LIMITED | Private company limited by shares | Live |
| VAST CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| YUNG XI CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| GROUP CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| PINE CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| JOY SKY CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| SJ ENTERPRISES HK LIMITED | Private company limited by shares | Dissolved |
| WELL ENJOY LIMITED | Private company limited by shares | Dissolved |
| ENJOY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| TOPSHOE ENTERPRISE LIMITED | Private company limited by shares | Live |
| WING LEE MECHANICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| EXCELLENT ENTERPRISES LIMITED | Private company limited by shares | Live |
| KAI YIP CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ENVIRO AT HOME LIMITED | Private company limited by shares | Dissolved |
| PARK ENGINEERING LIMITED | Private company limited by shares | Live |
| MOBETECH ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| Century New Energy Group Limited | Private company limited by shares | Dissolved |
| ON WAY ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ASIALAND ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| MAXLINK ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WISEN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ENTEX LIMITED | Private company limited by shares | Dissolved |
| GT Enterprise Limited | Private company limited by shares | Live |
| ENERGY ENGINEERING AND CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| Enriching Assets (HK) Limited | Private company limited by shares | Live |
| P.M. ENTERPRISES LIMITED | Private company limited by shares | Live |
| HOT HK ENTERPRISES LIMITED | Private company limited by shares | Live |
| FANCY ENERGY LIMITED | Private company limited by shares | Live |
| CHARM ENERGY LIMITED | Private company limited by shares | Dissolved |
| ESSENTIAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| MECHANICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| China Energy and Environmental Protection Foundation Limited | Private company limited by shares | Live |
| GRAND PEAK ENTERPRISE LIMITED | Private company limited by shares | Live |
| SABANI ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SMART DRAGON ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| MING MAY ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| AFFLUENT ENTERPRISE LIMITED | Private company limited by shares | Live |
| ENVIRONMENTAL ENGINEERING TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Maintime Environmental Limited | Private company limited by shares | Dissolved |
| YAU LEE DESIGN ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| NEW MAN HEI HARBOUR SERVICE & ENGINEERING CO LIMITED | Private company limited by shares | Dissolved |
| EDM ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| DATA CENTURY ENTERPRISES LIMITED | Private company limited by shares | Live |
| MERIT ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| CMI ENERGY CO., LIMITED | Private company limited by shares | Live |
| GAIN LEGEND ENTERPRISES LIMITED | Private company limited by shares | Live |
| ENERGY HUB LIMITED | Private company limited by shares | Dissolved |
| ENDEAVOR ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| APARTMENT SOLUTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| New Energy Greater China Limited | Private company limited by shares | Dissolved |
| HARVEST ENERGY LIMITED | Private company limited by shares | Dissolved |
| VCY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| HONEST JOY ENTERPRISE (CHINA) LIMITED | Private company limited by shares | Dissolved |
| KIN HANG ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| ABE ENTERPRISES LIMITED | Private company limited by shares | Live |
| ALPINE MOLD ENGINEERING LIMITED | Private company limited by shares | Live |
| KINSTON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| MY ART ENTERTAINMENT LIMITED | Private company limited by shares | Dissolved |
| YING SHENG ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ELLETRON ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| TALENT TEAM ENTERPRISES LIMITED | Private company limited by shares | Live |
| H.K. ENTEM INDUSTRY LIMITED | Private company limited by shares | Dissolved |
| JAPAN CAR ENERGY SOURCES TECHNIQUE INVESTIGATION COMPANY (CHINA) LIMITED | Private company limited by shares | Dissolved |