| DRAGON ECHOES CO., LIMITED | | Live |
| ECHOES INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| Echoes Creative Limited | | Live |
| Delightful Echoes Investment Limited | Private company limited by shares | Live |
| ECHOES ON EARTH COMPANY LIMITED | Private company limited by shares | Live |
| ECHOES (HK) GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Echoes Technology Co., Limited | | Live |
| ECHOES TRADING CO., LIMITED | Private company limited by shares | Live |
| ECHOES90 LIMITED | Private company limited by shares | Live |