| Company Name | Type | Status |
|---|---|---|
| CAL-TECH COMPANY LIMITED | Private company limited by shares | Dissolved |
| Caltech Limited | Private company limited by shares | Live |
| CALTECH GROUP LIMITED | Private company limited by shares | Live |
| CALTECH INVESTMENTS LIMITED | Private company limited by shares | Live |
| CALTECHE PETROCHEMICAL (HK) LIMITED | Private company limited by shares | Live |