| Company Name | Type | Status |
|---|---|---|
| TANCHENG ARCHITECTURE LIMITED | Private company limited by shares | Dissolved |
| TANCHENG ENTERPRISE LIMITED | Live | |
| TANCHI COMPANY LIMITED | Private company limited by shares | Dissolved |
| Tancho Company Limited | Live | |
| TANCHO (Hong Kong) Limited | Private company limited by shares | Live |
| TANCHUEN LIMITED | Private company limited by shares | Dissolved |
| TANCHUEN DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |