| O SI DISK LIMITED | Private company limited by shares | Live |
| DISK LIMITED | Private company limited by shares | Live |
| DOCTOR DISK LIMITED | Private company limited by shares | Dissolved |
| FLAHUSB DISK LIMITED | Private company limited by shares | Dissolved |
| FORTUNE DISK LIMITED | Private company limited by shares | Dissolved |
| SHENZHEN JOSLEN DISK CO., LIMITED | Private company limited by shares | Dissolved |
| FLASH DISK ON LINE LIMITED | Private company limited by shares | Dissolved |
| GOLD DISK MARBLE LIMITED | Private company limited by shares | Live |
| SILVER DISK LIMITED | Private company limited by shares | Live |
| SUNSHINE DISK TRADING LIMITED | Private company limited by shares | Live |
| DISK SERVICE TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSE OPTICAL DISK LIMITED | Private company limited by shares | Live |
| HAPPY VALLEY LASER & DISK LIMITED | Private company limited by shares | Dissolved |
| DISKCOURT TRADING LIMITED | Private company limited by shares | Live |
| DISKDISC LIMITED | Private company limited by shares | Dissolved |
| DISKFAM COMPANY LIMITED | Private company limited by shares | Live |
| DISKISON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| DISKLAND LIMITED | Private company limited by shares | Dissolved |
| DISKWAY LIMITED | Private company limited by shares | Live |
| DISKY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |