| DAZHONGHUA ENVIRONMENTAL ENERGY INVESTMENT (GROUP) LIMITED | Private company limited by shares | Dissolved |
| Environmental Energy Investment Group Co., Limited | | Live |
| CHINA ENVIRONMENTAL & NEW ENERGY INDUSTRIAL GROUP LIMITED | Private company limited by shares | Live |
| ENVIRONMENTAL AND ENERGY INDUSTRY LIMITED | Private company limited by shares | Live |
| ENVIRONMENTAL & INTERNAL ENERGY MANAGEMENT LIMITED | Private company limited by shares | Live |
| Asia Environmental Energy Investment Limited | Private company limited by shares | Dissolved |
| HOI LAP ENVIRONMENTAL ENERGY (HK) INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Telemax Environmental and Energy Management Limited | Private company limited by shares | Live |
| TELEMAX ENVIRONMENTAL AND ENERGY MANAGEMENT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ORKNEY ENVIRONMENTAL ENERGY LIMITED | Private company limited by shares | Dissolved |
| Greens Energy Environmental (Pingxiang) Limited | Private company limited by shares | Live |
| CHANGHONGTAI ENVIRONMENTAL PROTECTION ENERGY LIMITED | Private company limited by shares | Live |
| CHINA ENVIRONMENTAL PROTECTION NEW ENERGY COMPANY LIMITED | Private company limited by shares | Live |
| China Energy and Environmental Protection Foundation Limited | Private company limited by shares | Live |
| CHINA ENERGY AND ENVIRONMENTAL PROTECTION GROUP LIMITED | Private company limited by shares | Dissolved |
| CHINA ENVIRONMENTAL PROTECTION NEW ENERGY GROUP LIMITED | Private company limited by shares | Dissolved |
| CHINA ENERGY & ENVIRONMENTAL PROTECTION GROUP LIMITED | Private company limited by shares | Live |
| China Energy Environmental Protection (HK) Limited | Private company limited by shares | Live |
| CENTURY ENVIRONMENTAL PROTECTION ENERGY CO., LIMITED | Private company limited by shares | Live |
| Solar Energy& Environmental protection Company Limited | Private company limited by shares | Live |
| SINGAPORE XUNWEISI NEW ENERGY ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Live |
| ZHONGWEI ENERGY & ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Dissolved |
| ENVIRONMENTAL CITY RENEWABLE ENERGY LIMITED | Private company limited by shares | Live |
| Riche Environmental Energy Limited | Private company limited by shares | Live |
| HK Yun Zhi Li Cheng Energy Saving & Environmental Technology Company Limited | Private company limited by shares | Live |
| ZHONGGANGXIN ENERGY ENVIRONMENTAL SERVICE LIMITED | Private company limited by shares | Live |
| Energy & Environmental Solutions Company Limited | Private company limited by shares | Live |
| PINCHUANG ENERGY AND ENVIRONMENTAL SOLUTIONS LIMITED | Private company limited by shares | Live |
| SUNSHINE ENVIRONMENTAL ENERGY LIMITED | | Live |
| ENERGY & ENVIRONMENTAL TECHNOLOGIES CO. LIMITED | Private company limited by shares | Dissolved |
| NEW ENERGY ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Lee Tak Environmental Energy Technology Limited | | Live |
| NEW ENERGY ENVIRONMENTAL TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| KK TECHNOLOGY OF ENVIRONMENTAL AND ENERGY SAVING LIMITED | Private company limited by shares | Dissolved |
| Winbase Energy Environmental Technology Limited | Private company limited by shares | Live |
| TECHSOURCE ENERGY & ENVIRONMENTAL CORPORATION LIMITED | Private company limited by shares | Live |
| W.Y. ENVIRONMENTAL ENERGY LIMITED | | Live |
| DNG ENERGYSAVING ENVIRONMENTAL GROUP LIMITED | Private company limited by shares | Dissolved |
| Yiu Shin Environmental Engagement Co Limited | Private company limited by shares | Live |
| TAI KEE ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BIS ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| KIT SUN ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| KAN KEE ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| TIN HA ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| GAS ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| H Q Environmental Engineering Limited | Private company limited by shares | Dissolved |
| Tak Po Environmental Engineering Limited | Private company limited by shares | Live |
| JPH ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| LCC ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| TAI TAT ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| KLP Environmental Engineering Limited | Private company limited by shares | Live |
| Tai Ran Environmental Engineering Company Limited | Private company limited by shares | Live |
| CF ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| ACE ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| ADVANCED ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| AMOCO ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Apollo Environmental Engineering Company Limited | Private company limited by shares | Live |
| AQUA ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ASIA ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| New Asia Environmental Engineering Company Limited | Private company limited by shares | Live |
| ATAL ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live Commenced dormancy on 07-Nov-2000 |
| ATOLL ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Bliss Environmental Engineering Limited | Private company limited by shares | Live |
| BLUET ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Win Charm Environmental Engineering Company Limited | Private company limited by shares | Live |
| CHINA ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Best Environmental Engineering (China) Limited | Private company limited by shares | Live |
| ENVIRONMENTAL ENGINEERING (CHINA) CO., LIMITED | Private company limited by shares | Live |
| CHINA KINGTOP ENVIRONMENTAL ENGINEERING GROUP LIMITED | Private company limited by shares | Dissolved |
| Wah Chit Environmental Engineering Co Limited | | Live |
| CHUNG TIN ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| CHUNG FAI ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| CHUNG TAI ENVIRONMENTAL EQUIPMENT ENGINEERING LIMITED | Private company limited by shares | Live |
| DAH DI ENVIRONMENTAL ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| YUE YI ENVIRONMENTAL ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| CG Environmental Engineering Co., Limited | | Live |
| BIO-ETAS ENVIRONMENTAL ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| Sun Solar Environmental & Engineering Co., Limited | Private company limited by shares | Live |
| Yong An Environmental Engineering Co., Limited | Private company limited by shares | Live |
| ENVIRONMENTAL CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| ENVIRONMENTAL ENGINEERING CONSTRUCTION COMPANY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ENVIRONMENTAL ENGINEERING & CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| CH ENVIRONMENTAL ENGINEERING CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| WEC Environmental Engineering Consultants Limited | Private company limited by shares | Live |
| Countercurrent Environmental Engineering Limited | Private company limited by shares | Live |
| CREATIVE ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SUM MAN ENVIRONMENTAL DEMOLITION ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| MEIAO ENVIRONMENTAL ART DESIGN & ENGINEERING (HK) LIMITED | Private company limited by shares | Dissolved |
| ENVIRONMENTAL DRAGON ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| EASTERN ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| TOP ELEGANCE ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TOP ELEGANCE ENVIRONMENTAL ENGINEERING (HK) LIMITED | Private company limited by shares | Dissolved |
| ELEMENT ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| EVER SEND ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Evergena Environmental Filtration Engineering Limited | Private company limited by shares | Live |
| Everich Environmental Engineering Limited | | Live |
| ENVIRONMENTAL FACILITY ENGINEERING LIMITED | | Live |
| RICH FOCUS ENVIRONMENTAL ENGINEERING EQUIPMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| Frontier Environmental Engineering Co. Limited | Private company limited by shares | Live |
| GLOBAL ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |