| CALCIUM COMPANY LIMITED | Private company limited by shares | Dissolved |
| Calcium Ion Limited | Private company limited by shares | Live |
| Ningxia Yunfeng Calcium Carbide Co., Limited | Private company limited by shares | Dissolved |
| CHANGJIN CALCIUM INDUSTRY (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| CHINA CALCIUM FRUIT GROUP CO., LIMITED | Private company limited by shares | Live |
| CHINA CALCIUM FRUIT GROUP CO., LIMITED | Private company limited by shares | Live |
| Calcium Group Limited | | Live |
| INDONESIA CALCIUM PRODUCTS LIMITED | Private company limited by shares | Live Commenced dormancy on 11-Nov-2013 |
| Calcium42 Limited | | Live |