| FAMILY FUN ENVIRONMENTAL PROTECTION & HEALTH LIMITED | Private company limited by shares | Live |
| SUN HING ENVIRONMENTAL PROTECTION TRANSPORTATION LIMITED | Private company limited by shares | Live |
| JDL ENVIRONMENTAL PROTECTION (H.K) LIMITED | Private company limited by shares | Dissolved |
| CR Environmental Protection (HK) Limited | Private company limited by shares | Live |
| HOISMEN ENVIRONMENTAL PROTECTION COMPANY LIMITED | Private company limited by shares | Live |
| YI RI XIN ENVIRONMENTAL PROTECTION EQUIPMENT HONGKONG CO., LIMITED | Private company limited by shares | Live |
| WAI YIP ENVIRONMENTAL PROTECTION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| NATURE ENVIRONMENTAL PROTECTION INT'L LIMITED | Private company limited by shares | Dissolved |
| EURO ASIA ENVIRONMENTAL PROTECTION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| TEXHONG ENVIRONMENTAL PROTECTION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| UNISPLENDOUR ENVIRONMENTAL PROTECTION (HK) INVESTMENT LIMITED | Private company limited by shares | Live |
| NEW VENTURE ENVIRONMENTAL PROTECTION INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| ENVIRONMENTAL PROTECTION INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| hk jiajing environmental protection Limited | Private company limited by shares | Live |
| JianFeng Environmental Protection Co., Limited | Private company limited by shares | Live |
| JIANG HUI ENVIRONMENTAL PROTECTION CO., LIMITED | Private company limited by shares | Live |
| JIANGHAN ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Live |
| Jieming Environmental Protection Limited | | Live |
| JINDING ENVIRONMENTAL PROTECTION MACHINERY CO., LIMITED | Private company limited by shares | Live |
| ENVIRONMENTAL PROTECTION KING LIMITED | Private company limited by shares | Live |
| KINGLAND ENVIRONMENTAL PROTECTION COMPANY LIMITED | Private company limited by shares | Live |
| FLY LEADER ENVIRONMENTAL PROTECTION HK LIMITED | Private company limited by shares | Live |
| LIFENG ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Live |
| LINGHANG ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Dissolved |
| LUBIN ENVIRONMENTAL PROTECTION EQUIPMENT (HK) COMPANY LIMITED | Private company limited by shares | Dissolved |
| HK MEIXUNDA RES REGENERATION ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Dissolved |
| HK MONSTER ENVIRONMENTAL PROTECTION PROCESSING COMPANY LIMITED | Private company limited by shares | Live |
| CENTURY MOTOR (ENVIRONMENTAL PROTECTION) COMPANY LIMITED | Private company limited by shares | Dissolved |
| Natural Environmental Protection Group Limited | Private company limited by shares | Live |
| GRAND ORIENTAL ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Live |
| ARTEMIS PLUTUS ENVIRONMENTAL PROTECTION COMPANY LIMITED | | Live |
| B S ENVIRONMENTAL PROTECTION PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| LIVON ENVIRONMENTAL PROTECTION PRODUCTS CO., LIMITED | Private company limited by shares | Live |
| HURRAY ENVIRONMENTAL PROTECTION PRODUCTS CO., LIMITED | Private company limited by shares | Live |
| ENVIRONMENTAL PROTECTION PROJECTS LIMITED | Private company limited by shares | Live |
| BEST QUALITY ENVIRONMENTAL PROTECTION INT'L LIMITED | Private company limited by shares | Live |
| Regeneration Environmental Protection Furniture Association Limited | 擔保有限公司 | Live |
| HK WUZHONG RENEWABLE RESOURCES ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| RESOURCE ENVIRONMENTAL PROTECTION (HK) CO., LIMITED | Private company limited by shares | Live |
| WAH LIK ENVIRONMENTAL PROTECTION SERVICE COMPANY LIMITED | Private company limited by shares | Live |
| SAI WAI ENVIRONMENTAL PROTECTION (SEWAGE DISPOSAL) LIMITED | Private company limited by shares | Dissolved |
| SUNFIELD ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Live |
| Sunrise Environmental Protection International Limited | Private company limited by shares | Dissolved |
| SUPERMART ENVIRONMENTAL PROTECTION CO., LIMITED | Private company limited by shares | Live |
| ENVIRONMENTAL PROTECTION SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| FLEXTECH ENVIRONMENTAL PROTECTION TECH (HK) LIMITED | Private company limited by shares | Live |
| MING FAI ENVIRONMENTAL PROTECTION TECH. LIMITED | Private company limited by shares | Dissolved |
| HK JISEN SMART ENVIRONMENTAL PROTECTION TECH LIMITED | Private company limited by shares | Live |
| ACC ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| YU SEN ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| GUO JIA ENVIRONMENTAL PROTECTION & TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| On Wah Environmental Protection Technology Company Limited | Private company limited by shares | Live |
| HK Jia Da LC Environmental Protection Technology Limited | | Live |
| Baosen Environmental Protection Technology Company Limited | Private company limited by shares | Dissolved |
| CleanOil Yunnan Environmental Protection Technology Company Limited | Private company limited by shares | Live |
| ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| GE SHI LE ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| SKY W ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HK JTC Environmental Protection Technology Co., Limited | | Live |
| HK DECHEN ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| European Environmental Protection Technology Co., Limited | Private company limited by shares | Live |
| USA ADB ENVIRONMENTAL PROTECTION TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| Huaneng Environmental Protection Technology Co., Limited | Private company limited by shares | Live |
| Invensys Environmental Protection Technology Co., Limited | Private company limited by shares | Live |
| MingSheng Environmental Protection Technology Co., Limited | Private company limited by shares | Live |
| ENVIRONMENTAL PROTECTION TECHNOLOGY (GAOZHOU) LIMITED | Private company limited by shares | Live |
| HK HENGXIN ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HK HERITAGE ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Sun Hui Environmental Protection Technology (HK) Limited | | Live |
| HK HUAYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HUIMAO ENVIRONMENTAL PROTECTION & TECHNOLOGY (HK) LIMITED | | Live |
| HK Huixin Environmental Protection Technology Limited | Private company limited by shares | Live |
| JULU ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HK Juner Environmental Protection Technology Limited | Private company limited by shares | Live |
| HK KANGYOUJING ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HK LANDU LUBRICATION ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Lubin Environmental Protection Technology Co., Limited | | Live |
| MOTECH ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| MYRON ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| PENGWANSHENG ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HK QUANLAODA ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| NEW TECHNOLOGY ENVIRONMENTAL PROTECTION REMAKE LIMITED | Private company limited by shares | Live |
| HEFEI RONGSHIDA ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HK Runfeng Environmental Protection Technology Limited | | Live |
| TAILI ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| VICMET ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| WOLINTE ENVIRONMENTAL PROTECTION TECHNOLOGY (BEIJING) LIMITED | Private company limited by shares | Live |
| HK Yingcai Environmental Protection Technology Limited | Private company limited by shares | Live |
| HK ZHONGXU ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | | Live |
| CHINA ENVIRONMENTAL PROTECTION FUEL INTERNATIONAL TRADING INVESTMENTS LIMITED | Private company limited by shares | Live |
| C&G ENVIRONMENTAL PROTECTION TRANSPORT LIMITED | Private company limited by shares | Live |
| 3S Environmental Protection Transport Limited | | Live |
| TUNG TAK ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Live |
| HK SUN TUNG YUNG ENVIRONMENTAL PROTECTION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| VERT ENVIRONMENTAL PROTECTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| BEAUTY VISION HOP WAN KO ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Dissolved |
| WAHFUNG ENVIRONMENTAL PROTECTION COMPANY LIMITED | Private company limited by shares | Live |
| WOODLAND ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Live |
| ENVIRONMENTAL PROTECTION RESEARCH WORKSHOP LIMITED | Private company limited by shares | Dissolved |
| XINGUANGDA ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Live |