Pearson PLC | National Grid plc | Cable & Wireless plc | General Electric Company plc | PLC | Antofagasta | Hanson plc | Cobham plc | Antofagasta de la Sierra | Prudential plc | British Gas plc | Pace plc | John Laing plc | Vickers plc | Novar plc | Ricardo plc | Henry Boot PLC | Future plc | Enterprise plc | Alvis plc | Sky Television plc | Score Group plc | Renishaw plc | Next plc | Ferrocarril de Antofagasta a Bolivia | Dalgety plc | Courts plc | Chime Communications plc | CGU plc | BTG plc |
Efasa is administered by Bolivian Railway Investors, a subsidiary of Antofagasta PLC, which owns the railway from the frontier between Abaroa and Ollagüe down to the Chilean Pacific coast ports of Antofagasta and Mejillones.