All of the locomotives from the latest batch are due to enter service by June, expanding the Mexican freight operator's SD70ACe fleet to 116 units.

Ferromex took delivery of an initial batch of 15 of the 3.2MW locomotives in 2006 and received a further 82 units in 2011.

In addition to the third batch of locomotives for Ferromex, EMD is supplying 15 units to Ferrosur, the company's first order for EMD locomotives.

Both Ferromex and Ferrosur are part of Grupo México, which is part-owned by Union Pacific.