| ISOC HONG KONG LIMITED | Private company limited by shares | Live |
| CHINA IMAGE STYLIST ISOC LIMITED | Private company limited by shares | Dissolved |
| ISOCAN HONG KONG LIMITED | | Live |
| ISOCHEM LIMITED | Private company limited by shares | Live |
| Isochem Trading Limited | Private company limited by shares | Live |
| ISOCO INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ISOCOM ASIA LIMITED | | Live |
| ISOCOM COMPONENTS ASIA LIMITED | Private company limited by shares | Live |
| UK ISOCOM Components Limited | | Live |
| ISOCON LIMITED | Private company limited by shares | Live |
| ISOCOR ASIA LIMITED | Private company limited by shares | Live |
| ISOCRYL HONG KONG, LIMITED | Private company limited by shares | Live |