| Asia Investment Opportunity - CSI1 Limited | Private company limited by shares | Live |
| CSIC SUN LIMITED | Private company limited by shares | Live |
| CSIC CO., LIMITED | Private company limited by shares | Live |
| CSIC SHIP TRADING & MANAGEMENT COMPANY LIMITED | Private company limited by shares | Live |
| C.S.I.C.C. LIMITED | Private company limited by shares | Live |
| CSICSRC LIMITED | Private company limited by shares | Live |
| C-SIDE NETWORK COMPANY LIMITED | Private company limited by shares | Live |
| CSIEM Marine Service Company Limited | Private company limited by shares | Dissolved |
| CSII Capital Limited | Private company limited by shares | Live |
| C-Silver Technology Limited | Private company limited by shares | Live |
| CSING LIMITED | Private company limited by shares | Live |
| CSING TRADING LIMITED | | Live |
| CSINL LIMITED | Private company limited by shares | Dissolved |
| C-SIONTECHNOLOGY (HK.) LIMITED | | Live |
| CSIP GLOBAL INVESTMENT GROUP LIMITED | Private company limited by shares | Live |
| CSIS (S) Limited | Private company limited by shares | Live |
| CSITC LIMITED | | Live |
| CS-iTEC Co. Limited | Private company limited by shares | Live |