| Circum Math Limited | Private company limited by shares | Live |
| TAIWAN NINE CONTINENT CIRCUMFERENCE INT'L GROUP LIMITED | Private company limited by shares | Dissolved |
| HK CIRCUMFERENCE PACKING PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| Circumflex Limited | Private company limited by shares | Live |
| CIRCUMFLUENL (H.K.) TECHNICS CO., LIMITED | Private company limited by shares | Dissolved |
| CIRCUM-LAND LIMITED | Private company limited by shares | Dissolved |
| CIRCUM-LINE LIMITED | Private company limited by shares | Dissolved |
| Circumpolar Star Limited | Private company limited by shares | Live |
| CIRCUMRICH TRADING LIMITED | Private company limited by shares | Dissolved |
| CIRCUMSALES LIMITED | Private company limited by shares | Dissolved |
| CIRCUM-SKY LIMITED | Private company limited by shares | Dissolved |
| POMP DUCK AND CIRCUMSTANCE COMPANY LIMITED | Private company limited by shares | Dissolved |
| CIRCUMSTAR COMPANY LIMITED | Private company limited by shares | Dissolved |
| CIRCUMVIEW LIMITED | Private company limited by shares | Dissolved |
| CIRCUMWAY LIMITED | Private company limited by shares | Dissolved |
| CIRCUMWEALTH COMPANY LIMITED | Private company limited by shares | Live |
| CIRCUM-WORLD LIMITED | Private company limited by shares | Live |