| Company Name | Type | Status |
|---|---|---|
| HK SUOMA ELECTRIC COMPANY LIMITED | Private company limited by shares | Live |
| SUOMA Industry (HK) Limited | Private company limited by shares | Live |
| HONGKONG SUOMA GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| SUOMA INDUSTRIAL LIMITED | Private company limited by shares | Live |
| HK SUOMA INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| Suomate Limited | Live |