Those coaches had been built by local factory Emprendimientos Ferroviarios S.A. (EMFER) and featured air conditioning, ABS brakes and computer-supervising systems.

The future investments required the acquisition of 492 brand-new electric multiple units, refurbishing of more than 100 km of existing tracks, and the installation of new signalling, among other improvements.

[4] After the cancellation of the contact, both lines were taken over by the consortium Unidad de Gestión Operativa Mitre Sarmiento (UGOMS) and later Trenes Argentinos, putting them back in state hands.

In October 2015, an exposé in the conservative daily newspaper La Nación highlighted the firm's apparent mismanagement while in charge of the commuter rail lines.

[6] Sergio Cigliano, one of the owners of TBA, was convicted and sentenced to nine years in prison for negligence surrounding the original accident which had resulted in the revocation of concession.