| C.ST Auto Electronics Limited | Private company limited by shares | Live |
| C.S.T GROUP SRL LIMITED | Private company limited by shares | Live |
| CS&T (HK) GROUP LIMITED | Private company limited by shares | Live |
| C.S.T. TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| C-STAR COMPANY LIMITED | Private company limited by shares | Dissolved |
| CSTAR HK LIMITED | Private company limited by shares | Live |
| CSTAR CO., LIMITED | Private company limited by shares | Live |
| CSTAR HI-TECH CO., LIMITED | Private company limited by shares | Dissolved |
| ShenZhen C-Star Co., Limited | Private company limited by shares | Live |
| C-STAR SHIPPING CO., LIMITED | Private company limited by shares | Dissolved |
| C-STAR HOLDING LIMITED | Private company limited by shares | Live |
| C-STAR INDUSTRIAL LIMITED | Private company limited by shares | Live |
| C-STAR DIGITAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| CSTAR POWER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Cstar Trading Limited | | Live |
| C-STARR INDUSTRIAL (HK) LIMITED | Private company limited by shares | Dissolved |
| C-stars Technology Limited | | Live |
| Hong Kong CStarvision Industrial Co., Limited | Private company limited by shares | Live |
| CSTC GROUP LIMITED | Private company limited by shares | Dissolved |
| CS-TEC LIMITED | Private company limited by shares | Dissolved |
| CSTECH Technology Limited | Private company limited by shares | Live |
| CSTILL ELECTRONICS CO., LIMITED | Private company limited by shares | Dissolved |
| CSTJ TRADING CO., LIMITED | | Live |
| CSTK COMPANY LIMITED | Private company limited by shares | Live |
| CSTON LIMITED | Private company limited by shares | Dissolved |
| CSTON CO., LIMITED | Private company limited by shares | Live |
| CSTOWN LIMITED | Private company limited by shares | Live |
| CSTR SUPPLY LIMITED | Private company limited by shares | Live |
| CSTT LIMITED | Private company limited by shares | Dissolved |
| CSTV LIMITED | Private company limited by shares | Dissolved |
| CSTYLE FASHION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |