| ETC ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| NVI ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| 3T ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| C & G ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| BGP ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| 3E ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| FIG ENVIRONMENTAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| ON MEI TAK ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| TOP Environmental Technology Limited | Private company limited by shares | Live |
| SUN ENVIRONMENTAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| MCL Environmental Technology Limited | Private company limited by shares | Live |
| VUN FAT ENVIRONMENTAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| MEG ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| H & H Environmental Technology Limited | Private company limited by shares | Dissolved |
| Environmental Technology Co. Limited | Private company limited by shares | Live |
| LMW ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| S U ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| P&T ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Eco Environmental Technology Company Limited | Private company limited by shares | Live |
| MBC Environmental Technology Limited | Private company limited by shares | Live |
| CHI WO ENVIRONMENTAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| JLN Environmental Technology Limited | Private company limited by shares | Live |
| RHT ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Uni Environmental Technology Limited | Private company limited by shares | Live |
| AP Environmental Technology Company Limited | Private company limited by shares | Live |
| CK ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| WS Environmental AI Technology Company Limited | Private company limited by shares | Live |
| HON WAI ENVIRONMENTAL TECHNOLOGY LIMITED | | Live |
| JM Environmental Technology Limited | | Live |
| Able Nice Environmental Technology Limited | Private company limited by shares | Live |
| ANRICH ENVIRONMENTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| AOJIA ENVIRONMENTAL TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| Asia Environmental Electroplating Technology Limited | Private company limited by shares | Live |
| Roots Environmental Technology (Asia) Limited | Private company limited by shares | Live |
| atea Environmental Technology Pte Limited | Private company limited by shares | Dissolved |
| AXIOM ENVIRONMENTAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| BIO BEST ENVIRONMENTAL TECHNOLOGY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| BIOLINK ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| BIOMAX ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Bohai Environmental technology (HK) Limited | Private company limited by shares | Live |
| B-RIVER ENVIRONMENTAL TECHNOLOGY (H.K.) LIMITED | Private company limited by shares | Live |
| Broadtec Environmental Technology Limited | Private company limited by shares | Live |
| HK Canfull ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| CANTON ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Carin Environmental Technology Group Company Limited | Private company limited by shares | Live |
| Win Champion Environmental Technology Limited | Private company limited by shares | Live |
| Charming Environmental Technology Limited | | Live |
| BGP ENVIRONMENTAL TECHNOLOGY (CHINA) LIMITED | Private company limited by shares | Live |
| BIO BEST ENVIRONMENTAL TECHNOLOGY (CHINA) LIMITED | Private company limited by shares | Dissolved |
| BOGO (CHINA) ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| CHINA ENVIRONMENTAL TECHNOLOGY GROUP CO., LIMITED | Private company limited by shares | Live |
| China Environmental Technology International Group Limited | | Live |
| CHINA ENVIRONMENTAL TECHNOLOGY (HOLDING) LIMITED | Private company limited by shares | Dissolved |
| SOUTH CHINA ENVIRONMENTAL TECHNOLOGY HOLDING LIMITED | Private company limited by shares | Dissolved |
| CHINA ENVIRONMENTAL TECHNOLOGY INDUSTRY (GROUP) LIMITED | Private company limited by shares | Live |
| China Nator Environmental Technology Limited | Private company limited by shares | Live |
| SOUTH CHINA ENVIRONMENTAL TECHNOLOGY CO LIMITED | Private company limited by shares | Live |
| SOUTH CHINA ENVIRONMENTAL TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| USA TAO'S ENVIRONMENTAL TECHNOLOGY (CHINA) LIMITED | Private company limited by shares | Live |
| CHINA ENVIRONMENTAL (HK) WORLD TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| China-Czech Environmental Technology (H.K.) Limited | Private company limited by shares | Live |
| CHUANGMEI ENVIRONMENTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| CHUNG TIN ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Clean Air Environmental Technology Limited | Private company limited by shares | Live |
| HV ENVIRONMENTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Le & Der Environmental Technology Co., Limited | Private company limited by shares | Live |
| FAN TAT ENVIRONMENTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| WFS ENVIRONMENTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Go Environmental Technology Co., Limited | Private company limited by shares | Live |
| JLD Environmental Technology co., Limited | Private company limited by shares | Live |
| SOT Environmental Technology Co., LIMITED | Private company limited by shares | Live |
| DGC ENVIRONMENTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| YST Environmental Technology Co., Limited | | Live |
| DOCTOR'S ENVIRONMENTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| EASTERN ENVIRONMENTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| UD Environmental Equipment Technology Co., Limited | Private company limited by shares | Live |
| GAD Environmental (HK) Technology Co., Limited | Private company limited by shares | Live |
| GEO ENVIRONMENTAL TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| WU SHI ENVIRONMENTAL TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| Bay Environmental Technology (HongKong) Co., Limited | Private company limited by shares | Live |
| Naga Environmental Technology CO., Limited | Private company limited by shares | Live |
| O'MEET ENVIRONMENTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| MBS Environmental Science And Technology Co., Limited | Private company limited by shares | Live |
| Vactery Environmental Technology Co., Limited | Private company limited by shares | Live |
| ENVIRONMENTAL TECHNOLOGY CONSULTANTS LIMITED | Private company limited by shares | Live |
| ENVIRONMENTAL TECHNOLOGY CORPORATION LIMITED | Private company limited by shares | Dissolved |
| Dayang Environmental Technology (Hong Kong) Limited | | Live |
| DEBIN ENVIRONMENTAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| Denis Environmental Technology (Hong Kong) Limited | | Live |
| DERON ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| DESSA ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| DONGJIE ENVIRONMENTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| DONGSHEN ENVIRONMENTAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| EARTH-LINK (P.R.C.) ENVIRONMENTAL TECHNOLOGY ENTERPRISES LIMITED | Private company limited by shares | Live |
| CHINA EAST ENVIRONMENTAL TECHNOLOGY SHARES LIMITED | Private company limited by shares | Dissolved |
| EAST STAR ENVIRONMENTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Ecologia Environmental Technology Company Limited | Private company limited by shares | Live |
| EVER NEW ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Fair Environmental Technology (HK) Limited | | Live |
| FAITHFUL ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |