| Company Name | Type | Status |
|---|---|---|
| COSON COMPANY LIMITED | Private company limited by shares | Dissolved |
| COSONIC LIMITED | Private company limited by shares | Live |
| COSONIC ELECTRONICS COMPANY LIMITED | Private company limited by shares | Live |
| CO-SONIC INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| COSONIC (HK) TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |