| Ruichen Environmental Technology (HK) Co., Limited | Private company limited by shares | Live |
| ENVIRONMENTAL, HEALTH AND SAFETY MANAGEMENT CO. LIMITED | Private company limited by shares | Dissolved |
| SAIFI ENVIRONMENTAL TECHNOLOGY (HK) CO., LIMITED | | Live |
| SAMUEL ENVIRONMENTAL RESOURCES (INTERNATIONAL) LIMITED | Private company limited by shares | Live |
| SANWA ENVIRONMENTAL DISPOSAL LIMITED | Private company limited by shares | Dissolved |
| ENVIRONMENTAL PROTECTION SATELLITE TELEVISION LIMITED | Private company limited by shares | Live |
| ENVIRONMENTAL POWER SAVING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ENVIRONMENTAL SCIENCE LIMITED | Private company limited by shares | Live |
| SEIKO ENVIRONMENTAL SCIENCE ELECTRICAL EQUIPMENT (HK) LIMITED | Private company limited by shares | Dissolved |
| Dahua Environmental Sci-Tech (HK) Limited | Private company limited by shares | Live |
| HK SCYS ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Dissolved |
| SEAWISE ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| BAI LIN ENVIRONMENTAL SERVICE LIMITED | Private company limited by shares | Dissolved |
| FAI IN ENVIRONMENTAL SERVICE LIMITED | Private company limited by shares | Live |
| NEW ENVIRONMENTAL SERVICE COMPANY LIMITED | Private company limited by shares | Live |
| QOL Environmental Service Limited | Private company limited by shares | Live |
| HEC Environmental Service Limited | Private company limited by shares | Live |
| LUX ENVIRONMENTAL SERVICE COMPANY LIMITED | Private company limited by shares | Live |
| Environmental Service Limited | Private company limited by shares | Live |
| Chi Yip Environmental Service Limited | | Live |
| Sky Clean Environmental Service Company Limited | Private company limited by shares | Live |
| EASY GO ENVIRONMENTAL SERVICE LIMITED | Private company limited by shares | Dissolved |
| EASY ENVIRONMENTAL SERVICE COMPANY LIMITED | Private company limited by shares | Live |
| ENTER ENVIRONMENTAL SERVICE LIMITED | Private company limited by shares | Dissolved |
| EVERBRIGHT ENVIRONMENTAL SERVICE LIMITED | Private company limited by shares | Dissolved |
| SUCCESS FAME ENVIRONMENTAL SERVICE LIMITED | Private company limited by shares | Live |
| LEUNG TIK ENVIRONMENTAL SERVICE LIMITED | Private company limited by shares | Live |
| OCEAN ENVIRONMENTAL SERVICE COMPANY LIMITED | Private company limited by shares | Dissolved |
| POWER ENVIRONMENTAL SERVICE LIMITED | Private company limited by shares | Live |
| SFire Environmental Protection Technology Co., Limited | Private company limited by shares | Live |
| SHANDONG HANYU ENVIRONMENTAL EQUIPMENT CO., LIMITED | Private company limited by shares | Live |
| SHANGHAI ANJULE ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Live |
| Shanghai BioEnv Environmental Technology Co., Limited | Private company limited by shares | Live |
| SHANGHAI WEIFU ENVIRONMENTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HK SHANHE ENVIRONMENTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| SHENGSHI ENVIRONMENTAL (HK) CO., LIMITED | Private company limited by shares | Live |
| Shenki Environmental Protection Technology Co., Limited | Private company limited by shares | Live |
| SHENYANG ENVIRONMENTAL PROTECTION EQUIPMENTS (H.K.) LIMITED | Private company limited by shares | Dissolved |
| HK SHENYUANRUN ELECTRON WASTE RECLAIM ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Live |
| Shields Environmental Limited | | Live |
| MAN SHING ENVIRONMENTAL COMPANY LIMITED | Private company limited by shares | Live |
| CHUNG SHING ENVIRONMENTAL LIMITED | Private company limited by shares | Live |
| KAI SHING ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| YU SHING ENVIRONMENTAL ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| Shing Fung Environmental Enginieering Co. Limited | | Live |
| WAH SHING ENVIRONMENTAL INVESTMENT LIMITED | Private company limited by shares | Live |
| Shing Fat Environmental Protection Limited | Private company limited by shares | Dissolved |
| HOP SHING ENVIRONMENTAL RECYCLING LIMITED | Private company limited by shares | Live |
| GO SHING ENVIRONMENTAL RECYCLING COMPANY LIMITED | | Live |
| CHUNG SHING ENVIRONMENTAL SERVICE COMPANY LIMITED | Private company limited by shares | Live |
| Wan Shing Environmental Trading Limited | | Live |
| HK SHIXIONG ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Shujin Environmental Technology Limited | Private company limited by shares | Dissolved |
| SHYUAN-KUO ENVIRONMENTAL LIMITED | Private company limited by shares | Dissolved |
| Sino-US Environmental Regeneration Resource Limited | Private company limited by shares | Live |
| Skyline Environmental Protection Limited | Private company limited by shares | Live |
| Skyline Environmental Technology (Hong Kong) Limited | Private company limited by shares | Live |
| SMARTGAS ENVIRONMENTAL AUTOMOBILE COMPANY LIMITED | Private company limited by shares | Dissolved |
| Soaring Sky Environmental Limited | Private company limited by shares | Live |
| ADVANCED ENVIRONMENTAL SOLUTION LIMITED | Private company limited by shares | Dissolved |
| ENVIRONMENTAL SOLUTIONS LIMITED | Private company limited by shares | Dissolved |
| ON KEE ENVIRONMENTAL SOLUTIONS LIMITED | Private company limited by shares | Dissolved |
| BBJ ENVIRONMENTAL SOLUTIONS LIMITED | Private company limited by shares | Dissolved |
| A2E ENVIRONMENTAL SOLUTIONS LIMITED | Private company limited by shares | Dissolved |
| MIB Environmental Solutions Limited | | Live |
| ADA Environmental Solutions Limited | | Live |
| Citadel Environmental Solutions Limited | Private company limited by shares | Live |
| CLOSED LOOP (ASIA) ENVIRONMENTAL SOLUTIONS LIMITED | Private company limited by shares | Live |
| Luftrum Environmental Solutions Limited | | Live |
| ENVIRONMENTAL PIONEERS & SOLUTIONS LIMITED | Private company limited by shares | Live |
| RAINMAKER ENVIRONMENTAL SOLUTIONS LIMITED | Private company limited by shares | Live |
| SONGRONG ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Soyii Environmental Limited | Private company limited by shares | Live |
| ENVIRONMENTAL SPECIALISTS LIMITED | Private company limited by shares | Live |
| Green Square Environmental Limited | Private company limited by shares | Live |
| Stone Forest Environmental Co., Limited | Private company limited by shares | Live |
| SUCCESS GRAND ENVIRONMENTAL LIMITED | Private company limited by shares | Live |
| SUMMIT ENVIRONMENTAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sunlight Environmental Limited | Private company limited by shares | Live |
| NEW SUNSHINE ENVIRONMENTAL ART CO., LIMITED | Private company limited by shares | Live |
| SUNSHINE ENVIRONMENTAL PROTECTION ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| SUNSHINE ENVIRONMENTAL PROTECTION INT'L LIMITED | Private company limited by shares | Live |
| SUNTEAM WATSON ENVIRONMENTAL LIMITED | Private company limited by shares | Dissolved |
| Sunvast Environmental Technology Limited | Private company limited by shares | Live |
| SUNY ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SWEAIR ENVIRONMENTAL LIMITED | Private company limited by shares | Live |
| TPC Environmental System Company Limited | Private company limited by shares | Dissolved |
| A. T. S. ENVIRONMENTAL SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| DMC ENVIRONMENTAL SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| GAINBERG ENVIRONMENTAL SYSTEMS LIMITED | Private company limited by shares | Live |
| KASEMAN ENVIRONMENTAL SYSTEMS (HK) LIMITED | Private company limited by shares | Dissolved |
| TAIAN ENVIRONMENTAL INTERNATIONAL TECHNOLOGY MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| TAIWAN PLASTIC ENVIRONMENTAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| TAIWAN YIJIA ENVIRONMENTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| TAPBO ENVIRONMENTAL LIMITED | Private company limited by shares | Live |
| E. TECH ENVIRONMENTAL CO LIMITED | Private company limited by shares | Dissolved |
| OCEAN & SKY ENVIRONMENTAL TECH. CO., LIMITED | Private company limited by shares | Dissolved |
| Tech Environmental Culture Company Limited | | Live |
| HK RONGYOU ENVIRONMENTAL TECH LIMITED | | Live |
| USA TOUAOSY ENVIRONMENTAL TECH LIMITED | Private company limited by shares | Live |