| Siwa Asia Limited | Private company limited by shares | Live |
| SIWA GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| SIWA TRADING CO., LIMITED | Private company limited by shares | Live |
| SIWA Corporation Limited | Private company limited by shares | Live |
| Siwa Industrial Limited | Private company limited by shares | Live |
| SIWA INTERNATIONAL (HONG KONG) LIMITED | | Live |
| Siwach Impex Limited | Private company limited by shares | Live |
| SIWAH LIMITED | Private company limited by shares | Dissolved |
| SIWAI COMPANY LIMITED | Private company limited by shares | Live Commenced dormancy on 31-Mar-2015 |
| SIWAI IMPORT AND EXPORT TRADE CO., LIMITED | Private company limited by shares | Live |
| SIWANA ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SIWARD INTERNATIONAL (ASIA) CO., LIMITED | Private company limited by shares | Dissolved |
| SIWAY LIMITED | Private company limited by shares | Live |
| SHANGHAI SIWAY BUILDING MATERIAL CO., LIMITED | Private company limited by shares | Live |
| SIWAY INSPECTION & SERVICE CO., LIMITED | Private company limited by shares | Live |
| SIWAY GF INSPECTION & SERVICE CO., LIMITED | Private company limited by shares | Live |
| Siway Technology Co., Limited | Private company limited by shares | Live |
| SIWAY (HK) CO., LIMITED | Private company limited by shares | Live |
| SIWAY INVESTMENT (HK) CO., LIMITED | Private company limited by shares | Live |
| SIWAY INTERNATIONAL GROUP CO., LIMITED | Private company limited by shares | Live |