| Company Name | Type | Status |
|---|---|---|
| Ecool Air Co. Limited | Private company limited by shares | Live |
| 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 |