| Company Name | Type | Status |
|---|---|---|
| TZON YU ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| T-ZONE COMPANY LIMITED | Private company limited by shares | Dissolved |
| TZONE TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| TZONE DIGITAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| DAH TZONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| TZONG MEI SERVICE TRADE CO., LIMITED | Private company limited by shares | Live |