| Tarnbrook Capital Limited | | Live |
| Tarnetta Group Limited | Private company limited by shares | Live |
| TARNG YUN CO. LIMITED | Private company limited by shares | Dissolved |
| TARNG CHERN HOLDING (HK) LIMITED | Private company limited by shares | Dissolved |
| CHIUANN FENG TARNG PHARMACEUTICAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| TARNG CHU ENTERPRISE COMPANY (H.K.) LIMITED | Private company limited by shares | Live |
| TARNID COMPANY LIMITED | Private company limited by shares | Dissolved |
| TARNPOLE LIMITED | Private company limited by shares | Dissolved |
| TARNSIDE LIMITED | Private company limited by shares | Dissolved |
| TARNWOOD LIMITED | Private company limited by shares | Dissolved |