| G-Tech Environment Limited | Private company limited by shares | Dissolved |
| GUAN FEI ENVIRONMENT TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HARADA INTERNATIONAL ENVIRONMENT LIMITED | Private company limited by shares | Live |
| ENVIRONMENT AND HEALTH COMPANY LIMITED | Private company limited by shares | Live |
| SAFETY HEALTH ENVIRONMENT LIMITED | Private company limited by shares | Live |
| CHINA HEALTH SAFETY ENVIRONMENT LIMITED | Private company limited by shares | Live |
| HESTIUN ENVIRONMENT LIMITED | Private company limited by shares | Live |
| CHINA ENVIRONMENT HIGH TECHNOLOGY ASSOCIATION LIMITED | Private company limited by shares | Dissolved |
| ENVIRONMENT (HK) LIMITED | Private company limited by shares | Live |
| CM (HK) Environment Limited | Private company limited by shares | Live |
| LI YAN ENVIRONMENT (HK) LIMITED | Private company limited by shares | Live |
| SPC Environment (HK) Co. Limited | Private company limited by shares | Live |
| Beaut (HK) Environment International Limited | Private company limited by shares | Live |
| BENXIANG GROUP (HK) ENVIRONMENT TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Breathing Environment Technology (HK) Co., LIMITED | Private company limited by shares | Live |
| Environment Electric (H.K) Co., Limited | Private company limited by shares | Live |
| A&G (HK) Environment Landscape Design Consulting Limited | Private company limited by shares | Live |
| D-best Environment Group (HK) Shares Limited | Private company limited by shares | Live |
| SHIBIGAO (HK) SPACE ENVIRONMENT ART DESIGN LIMITED | Private company limited by shares | Dissolved |
| DLEE ENVIRONMENT (HK) LIMITED | Private company limited by shares | Dissolved |
| HESS Energy Environment (HK) Limited | | Live |
| ENVIRONMENT ENERGY SAVING (H.K.) COMPANY LIMITED | Private company limited by shares | Dissolved |
| JINXIUTIAN (HK) ENVIRONMENT ART ENGINEERING LIMITED | Private company limited by shares | Live |
| SQMH (HK) ENVIRONMENT ART ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| ENVIRONMENT ENTERPRISES (H.K.) LIMITED | Private company limited by shares | Dissolved |
| FosunJK Environment Investment (HK) Co., Limited | Private company limited by shares | Live |
| Global Environment Investment (HK) Limited | Private company limited by shares | Live |
| HANYA ENVIRONMENT ART (H.K) LIMITED | Private company limited by shares | Dissolved |
| QIANYE ENVIRONMENT INDUSTRY (HK) LIMITED | Private company limited by shares | Dissolved |
| JL ENVIRONMENT (HK) INTERNATIONAL LIMITED | Private company limited by shares | Live |
| NATURE ENVIRONMENT PRODUCTS (HK) LIMITED | Private company limited by shares | Live |
| VICTORY ENVIRONMENT PROTECTION (HK) LIMITED | Private company limited by shares | Live |
| YOULIN ENVIRONMENT PROTECTION (HK) LIMITED | Private company limited by shares | Live |
| QINGZHENG ENVIRONMENT (HK) INT'L LIMITED | Private company limited by shares | Live |
| H.K. ENVIRONMENT RECYCLING RENEWABLE RESOURCES LIMITED | Private company limited by shares | Live |
| H.K. ENVIRONMENT RENEWABLE RESOURCES LIMITED | Private company limited by shares | Live |
| HING SHING ENVIRONMENT (H.K.) CO., LIMITED | Private company limited by shares | Live |
| STREAM ENVIRONMENT (HK) LIMITED | Private company limited by shares | Live |
| ENVIRONMENT & TECHNOLOGY (HK) CO. LIMITED | Private company limited by shares | Dissolved |
| CANOE (HK) ENVIRONMENT TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ENVIRONMENT TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| HI-CLEAN ENVIRONMENT TECHNOLOGY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| PAN ENVIRONMENT (HK) SCIENCE & TECHNOLOGY LIMITED | | Live |
| SHUIBIYUAN (HK) ENVIRONMENT TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| H.K. YONGHONG ENVIRONMENT RECYCLING LIMITED | Private company limited by shares | Live |
| ENVIRONMENT ASIA HOLDING LIMITED | Private company limited by shares | Live |
| ONE ENVIRONMENT HOLDINGS COMPANY LIMITED -THE- | Private company limited by shares | Live |
| CHINA ENVIRONMENT HOLDINGS LIMITED | Private company limited by shares | Live |
| ENERGY ENVIRONMENT HOLDINGS LIMITED | Private company limited by shares | Live |
| China Energy Environment (Holdings) Limited | Private company limited by shares | Live |
| NOVEL ENERGY & GREEN ENVIRONMENT HOLDINGS LIMITED | Private company limited by shares | Live |
| CHINA ENVIRONMENT ENGINEERING HOLDINGS LIMITED | Private company limited by shares | Live |
| NATURAL ENVIRONMENT (HOLDINGS) LIMITED | Private company limited by shares | Dissolved |
| Beauty Home Environment Limited | Private company limited by shares | Live |
| CLEAR WATER (HONG KONG) ENVIRONMENT PURIFY ENGINEERING LIMITED | Private company limited by shares | Live |
| Clean Environment (Hong Kong) Co., Limited | Private company limited by shares | Live |
| Hong Kong NDK Environment Engineering Co., Limited | Private company limited by shares | Live |
| HONG KONG JUN YU ENVIRONMENT CO., LIMITED | Private company limited by shares | Dissolved |
| HK Hong Ming Environment Co., Limited | Private company limited by shares | Live |
| HONG KONG ENVIRONMENT ECOLOGY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG XU HE ENVIRONMENT ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ENVLITE ENVIRONMENT HONG KONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Environment Exchange Limited | Private company limited by shares | Live |
| China Water Environment Group (Hong Kong) Limited | Private company limited by shares | Live |
| HONG KONG HHJZ ENVIRONMENT PROTECTION YARN GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| Clean Environment (Hong Kong) Investment Limited | Private company limited by shares | Dissolved |
| Hong Kong NCE Environment Investment Holding Limited | Private company limited by shares | Live |
| NTC (Hong Kong) Environment Limited | Private company limited by shares | Live |
| NEW SKY (HONG KONG) ENVIRONMENT LIMITED | Private company limited by shares | Live |
| NWS Environment (Hong Kong) Limited | | Live |
| OCEAN SKY ENVIRONMENT (HONG KONG) LIMITED | | Live |
| Eternek Environment Technology (Hong Kong) Limited | Private company limited by shares | Live |
| OCEAN SKY ENVIRONMENT TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| KONZEN ENVIRONMENT (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| Hong Kong Top Level Environment Design Company Limited | Private company limited by shares | Live |
| YAN WING (HONG KONG) ENVIRONMENT MANAGEMENT LIMITED | Private company limited by shares | Live |
| ENVIRONMENT PROTECTION COMPANY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| YEE HOP ENVIRONMENT PROTECTION (HONG KONG) LIMITED | Private company limited by shares | Live |
| TUNG WAI ENVIRONMENT PROTECTION HONG KONG LIMITED | Private company limited by shares | Live |
| Shanghai Environment Group (Hong Kong) Company Limited | Private company limited by shares | Dissolved |
| HONG KONG WINSTAR ENVIRONMENT TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| HONG BAO ENVIRONMENT TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG XIN YUAN JIA ENVIRONMENT TECHNOLOGY LIMITED | Private company limited by shares | Live |
| AWS ENVIRONMENT (HONGKONG) LIMITED | Private company limited by shares | Live |
| HONGKONG RU MEI DA ENVIRONMENT ARTS ENGINEERING DESIGN LIMITED | Private company limited by shares | Dissolved |
| HONGKONG CLEAN ENVIRONMENT BIO-TECH CO., LIMITED | Private company limited by shares | Live |
| Shangshi Environment (Hongkong) Co., Limited | Private company limited by shares | Live |
| Hongkong Supratec Environment Co., Limited | Private company limited by shares | Live |
| HONGKONG EAST DATANG ENVIRONMENT ART DESIGN LIMITED | Private company limited by shares | Dissolved |
| HONGKONG RUNJING ENVIRONMENT ART AND DESIGN LIMITED | Private company limited by shares | Live |
| HONGKONG DEEHENG ENVIRONMENT ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| FENGYE (HONGKONG) TECHNOLOGY ENVIRONMENT PROTECTION LIMITED | Private company limited by shares | Dissolved |
| HONGKONG GOLDLUCK ENVIRONMENT SERVICE TRADE LIMITED | Private company limited by shares | Live |
| HONGKONG HVAC ENVIRONMENT EQUIPMENT CO. LIMITED | Private company limited by shares | Live |
| HongKong Grand Industry & Environment Limited | Private company limited by shares | Live |
| HONGKONG KAITAI ENVIRONMENT TECHNOLOGY CO., LIMITED | | Live |
| HONGKONG LANGNENG ENVIRONMENT INVESTMENT CONSULTANT LIMITED | Private company limited by shares | Dissolved |
| HONGKONG LONGMEI ENVIRONMENT PROTECTION CO., LIMITED | Private company limited by shares | Dissolved |
| HONGKONG JUN JIE ENVIRONMENT PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HongKong Pushing Environment Monitoring Limited | Private company limited by shares | Live |