| CALTE SHIPPING LIMITED | Private company limited by shares | Dissolved |
| CALTEC ELECTRONICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| CALTEC SHIPPING LIMITED | Private company limited by shares | Dissolved |
| 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 |
| CALTEE YOUNG LIMITED | Private company limited by shares | Live |
| BST CALTEK INDUSTRIAL LIMITED | Private company limited by shares | Live |
| CALTEK INDUSTRIAL (HONG KONG) LIMITED | Private company limited by shares | Live |
| CALTERAH INC. LIMITED | Private company limited by shares | Dissolved |
| CALTES GROUP (HONG KONG) LIMITED | Private company limited by shares | Live |
| CALTES INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| CALTEX LIMITED | Private company limited by shares | Dissolved |
| CALTEX LIMITED | | Live |
| CALTEX SOUTH CHINA INVESTMENTS LIMITED | Private company limited by shares | Live |
| CALTEX HANDBAGS (HK) CO., LIMITED | Private company limited by shares | Live |
| CALTEX FASHIONS LIMITED | Private company limited by shares | Dissolved |
| CALTEX INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| U.S.A. CALTEX PETROCHEMICAL SCIENCE AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| CALTEX SHIPPING COMPANY LIMITED | Private company limited by shares | Dissolved |
| CALTEX SHIPPING LIMITED | Private company limited by shares | Dissolved |
| Caltex (Takahashi) Limited | Private company limited by shares | Live |