| SICON LIMITED | Private company limited by shares | Live |
| SICON CORPORATION LIMITED | Private company limited by shares | Live |
| N. SICON ELECTRONICS (HK) LIMITED | Private company limited by shares | Dissolved |
| Sicon Electronics (Hong Kong) Limited | Private company limited by shares | Live |
| SICON ENGINEERING LIMITED | Private company limited by shares | Live |
| SICON ENTERPRISE LIMITED | Private company limited by shares | Live |
| SICON IMPORT AND EXPORT CO., LIMITED | Private company limited by shares | Live |
| SICON EXPRESS (HK) LIMITED | Private company limited by shares | Live |
| SICON GROUP S.R.L LIMITED | | Live |
| SOCOMEC SICON HONG KONG LIMITED | Private company limited by shares | Dissolved |
| SICON ENTERPRISE (HONGKONG) LIMITED | Private company limited by shares | Live |
| SICON INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Sicon Life Limited | Private company limited by shares | Dissolved |
| SICON EXPRESS LINE LIMITED | Private company limited by shares | Live |
| SICON PAPER CO., LIMITED | | Live |
| SICON TECHNOLOGY (HK) CO., LIMITED | | Live |
| SICON TRADE LIMITED | Private company limited by shares | Dissolved |
| SICON INTERNATIONAL TRADE CO., LIMITED | Private company limited by shares | Live |
| SICON TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| SICONA SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| Siconi Limited | Private company limited by shares | Live |