| Company Name | Type | Status |
|---|---|---|
| CITIC GUO HUA ELECTRIFICATION ENGINEERING (OVERSEAS) LIMITED | Private company limited by shares | Dissolved |
| INTERNATIONAL RAILTEC ELECTRIFICATION LIMITED | Private company limited by shares | Dissolved |
| Railway Electrification Limited | Live | |
| Iso Tech Electrification Company Limited | Private company limited by shares | Live |