| BOSCA LIMITED | Private company limited by shares | Dissolved |
| BOSCA ENTERPRISES LIMITED | Private company limited by shares | Live |
| BOSCA FURNITURE LIMITED | Private company limited by shares | Dissolved |
| BOSCAN LIMITED | Private company limited by shares | Live |
| BOSCAN DEVELOPMENT LIMITED | Private company limited by shares | Live |
| BOSCAN DE DOBERMA LIMITED | Private company limited by shares | Live |
| BOSCAN INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| BOSCAN INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| BOSCAN INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| TAIWAN BOSCAN (INT'L) SIGHT HEALTHCARE LIMITED | Private company limited by shares | Dissolved |
| BOSCASTLE LIMITED | Private company limited by shares | Dissolved |
| BOSCASTLE INVESTMENT LIMITED | Private company limited by shares | Dissolved |