Emepa Group S.A. is an Argentine manufacturer of railway vehicles and owner of Ferrovías, with headquarters located in the city of Buenos Aires. It had formerly owned Ferrocentral, which ran services from Buenos Aires to Córdoba and San Miguel de Tucumán on the Mitre Network, however the state-owned company SOFSE took over these services in 2014 and the subsidiary now remains inactive.

The Alerce is an Argentine railcar produced by the Emepa Group in Chascomús, Buenos Aires Province. As of 2015, the units are produced for the General Belgrano Railway's narrow gauge network and are currently used on commuter rail services, though a broad gauge variant is currently in the works. They are designed to be easily converted into Electric Multiple Units, though only diesel variants have been produced to date. The Alerce's namesake is the common name of Fitzroya cupressoides, a coniferous tree native to Argentina and Chile.