| Company Name | Type | Status |
|---|---|---|
| BOON SIEW COMPANY LIMITED | Private company limited by shares | Live |
| CHUA KUNG SIEW LIMITED | Private company limited by shares | Dissolved |
| SIEWAH LIMITED | Private company limited by shares | Dissolved |
| Shenzhen Siewell Co., Limited | Private company limited by shares | Live |
| Siewindos Technology Industrial Electron Company Limited | Private company limited by shares | Live |