| Company Name | Type | Status |
|---|---|---|
| LONGSTONE LIMITED | Private company limited by shares | Dissolved |
| LONGSTONE ELECTRONIC CO., LIMITED | Private company limited by shares | Dissolved |
| Longstone Technology Co., Limited | Private company limited by shares | Live |
| HONG KONG LONGSTONE LIMITED | Private company limited by shares | Live |
| LONGSTONE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| LONGSTONE INT'L SCIENCE TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| Longstone Trading Limited | Private company limited by shares | Live |