| SWEI TRADE CO., LIMITED | Private company limited by shares | Live |
| SWEI ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| SWEI TECHNOLOGY (HK) LIMITED | Private company limited by shares | Dissolved |
| SWEI INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| SWEI TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| SWEIGLE COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sweilock Valve (Shanghai) Co., Limited | | Live |
| Sweinvest Limited | Private company limited by shares | Live |
| SWEIT ENTERPRISE LIMITED | Private company limited by shares | Live |