| TRISON LIMITED | Private company limited by shares | Dissolved |
| TRISON LIMITED | Private company limited by shares | Dissolved |
| TRISON LIMITED | Private company limited by shares | Live |
| TRISON INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| TRISON INVESTMENT LIMITED | Private company limited by shares | Live |
| TRISON TRADING LIMITED | Private company limited by shares | Live |
| TRISONAR (H.K.) LIMITED | Private company limited by shares | Live |
| TRISONAR (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| TRISONAR INDUSTRIAL LIMITED | Private company limited by shares | Live |
| TRI-SONIC LIMITED | Private company limited by shares | Dissolved |
| TRISONIC INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| TRISONIC INTERNATIONAL LIMITED | Private company limited by shares | Live |
| TRISONIC INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| TRISONIC TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| TRISONIC TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |