| E-Cool Manufacturing Co., Limited | Private company limited by shares | Live |
| HK E-Cool Group Limited | Private company limited by shares | Live |
| eCOOL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ECOOLINE COMMERCE & TRADE CO., LIMITED | Private company limited by shares | Live |
| ECOON TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| ECO-OP LIMITED | Company limited by guarantee | Dissolved |
| ECO-OPERATIONS LIMITED | Private company limited by shares | Dissolved |
| ECO-ORIGIN INDUSTRIAL LIMITED | Private company limited by shares | Live |
| Ecopac Company Limited | Private company limited by shares | Live |
| MVI ECOPACK CO., LIMITED | | Live |
| ECOPACK SOLUTIONS PTY. LIMITED | Private company limited by shares | Live |
| YD ECO-PACKAGING LIMITED | Private company limited by shares | Dissolved |
| GREEN LAND ECO-PACKAGING CO., LIMITED | Private company limited by shares | Live |
| ECOPACKAGINGCHINA CO., LIMITED | Private company limited by shares | Dissolved |
| EcoPackers Limited | Private company limited by shares | Live |
| ECOPAK LIMITED | Private company limited by shares | Dissolved |
| ECOPAK LIMITED | | Live |
| Shanghai Ecopak Packaging Co., Limited | Private company limited by shares | Live |
| HONG KONG PAT SIN LENG ECOPARK DEVELOPMENT LIMITED | Private company limited by shares | Live |
| Golden Horse Xi An Eco-Park Investments Limited | Private company limited by shares | Dissolved |
| Eco-Park Management (HK) Co., Limited | Private company limited by shares | Live |
| ECO-PARK HOLDINGS LIMITED | Private company limited by shares | Live |
| TAI TONG ORGANIC ECOPARK COMPANY LIMITED | Private company limited by shares | Live |
| ECOPARTS LIMITED | Private company limited by shares | Live |
| ECOPARTS TRADING AGENCY LIMITED | Private company limited by shares | Live |
| Ecoparty International Co., Limited | Private company limited by shares | Live |
| Ecopatent International Medical Limited | Private company limited by shares | Dissolved |
| ECOPEL (HX) COMPANY LIMITED | Private company limited by shares | Live |
| ECOPHESUS G2G COMPANY LIMITED | Private company limited by shares | Live |
| EcoPhilia Company Limited | Private company limited by shares | Live |
| ECOPHORIA TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| ECOPIA LIMITED | Private company limited by shares | Dissolved |
| ECOPIA (HONG KONG) LIMITED | Private company limited by shares | Live |
| 3R HONG KONG INTERNATIONAL ECO-PIONEER LIMITED | Private company limited by shares | Live |
| ECOPIPE CO., LIMITED | Private company limited by shares | Live |
| E&COPL Limited | Private company limited by shares | Live |
| ECOPLANT HONG KONG LIMITED | Private company limited by shares | Live |
| ECOPLANTATIONS LIMITED | Private company limited by shares | Live |
| ECOPLAS CO. LIMITED | Private company limited by shares | Live |
| ECOPLAS (HK) LIMITED | Private company limited by shares | Live |
| ECOPLAS SOLUTIONS (HK) LIMITED | Private company limited by shares | Live |
| ECOPLAS MATERIAL CO., LIMITED | Private company limited by shares | Live |
| ECOPLAST MACHINERY CO., LIMITED | Private company limited by shares | Live |
| Phoenix Ecoplast Technoloy Co., Limited | Private company limited by shares | Live |
| BD8 ECOPLASTICS LIMITED | Private company limited by shares | Live |
| ECOPLUS-DJC LIMITED | Private company limited by shares | Dissolved |
| ecopo Limited | Private company limited by shares | Live |
| Ecopoint Limited | Private company limited by shares | Dissolved |
| ECOPOINT HK LIMITED | Private company limited by shares | Live |
| Ecopolis International Design Co., Limited | Private company limited by shares | Live |
| Ecoponics Company Limited | Private company limited by shares | Live |
| Ecoponics (Hong Kong) Limited | Private company limited by shares | Live |
| EcoPort Limited | Private company limited by shares | Live |
| EcoPower Healthcare Limited | Private company limited by shares | Live |
| ECOPOZ INTERNATIONAL LIMITED | Private company limited by shares | Live |
| EcoPro Company Limited | Private company limited by shares | Live |
| EcoPro Limited | Private company limited by shares | Live |
| ECOPRO INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| ECO-PRO TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Eco-Pro Seperation Technology Limited | Private company limited by shares | Live |
| YAMANO ECO-PRO TECHNOLOGY CO LIMITED | Private company limited by shares | Dissolved |
| FORTUNE ECO-PRODUCTS CO., LIMITED | Private company limited by shares | Live |
| GLOBAL ECO-PRODUCTS FOUNDATION LIMITED | Private company limited by shares | Dissolved |
| GLOBAL ECO-PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| H.K. Orient Success Eco-Products Co., Limited | Private company limited by shares | Live |
| YANYAN ECO-PRODUCTS LIMITED | Private company limited by shares | Live |
| ECO-PROPERTY LIMITED | Private company limited by shares | Dissolved |
| Ecopropp Limited | Private company limited by shares | Dissolved |
| ECOPTICAL COMMUNICATION CO., LIMITED | Private company limited by shares | Dissolved |
| Ecoptical Micro Trading Co., Limited | Private company limited by shares | Live |
| ECORAIN SYSTEMS LIMITED | Private company limited by shares | Live |
| ECORAL LIMITED | Private company limited by shares | Live |
| ECO-RAMA LIMITED | Private company limited by shares | Live |
| ECORATE LIMITED | Private company limited by shares | Dissolved |
| eCorbetti Limited | Private company limited by shares | Dissolved |
| ECOrbit Technology Limited | | Live |
| E-Cord Limited | Private company limited by shares | Live |
| E-CORE AUDIO LIMITED | Private company limited by shares | Dissolved |
| Ecore (HK) Integrated Circuit Co., Limited | Private company limited by shares | Live |
| E-CORE COMPONENT CO., LIMITED | Private company limited by shares | Live |
| ECORE ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| ECORE MICRO ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| E-CORE ELECTRONICS INDUSTRY (HK) LIMITED | Private company limited by shares | Dissolved |
| ECORE GLOBAL TECHNOLOGY (HONGKONG) COMPANY LIMITED | Private company limited by shares | Live |
| GRAND ECORE COMPANY LIMITED | Private company limited by shares | Dissolved |
| E-CORE (HK) LIMITED | Private company limited by shares | Live |
| ECORE ELECTRIC (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| HONG KONG ECORE TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| ECORE PACKING CO., LIMITED | Private company limited by shares | Live |
| E-CORE TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Ecore Technology Co., Limited | Private company limited by shares | Live |
| ECORE TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| Ecore Trade Limited | Private company limited by shares | Live |
| ECO-RECYCLE HOLDING LIMITED | Private company limited by shares | Live |
| EcoRenew Limited | Private company limited by shares | Dissolved |
| ECORESEARCH LIMITED | Private company limited by shares | Live |
| EcoResort Investments Limited | Private company limited by shares | Live |
| ECORESORTS LIMITED | Private company limited by shares | Live |
| Eco-Resource Supplies Limited | Private company limited by shares | Live |
| Eco-Rich Limited | Private company limited by shares | Live |