MRAIL INC., a subsidiary of the Manila Electric Company, whose main focus is to support the Philippine Railway industry was appointed by Seoul Metro to exclusively introduce the Ballast to Slab (B2S^©) Track Conversion Solution to the Philippine Railway System. The B2S^© replaces ballast tracks with concrete slab tracks which is proven to enhance safety and minimize rail defects. The system also increases the service cycle of rails which will ultimately lead to improved passenger experience.

In 2012 Seoul Metro, the O&M of the Seoul Metro system pioneered a new system of converting its ballasted tracks to Slab tracks without disrupting revenue operations on its existing lines. The system proved to be a game changer to the metro systems as it eliminated the periodic maintenance activities for the ballasted tracks as well as the systematic replacements of ballasts. This pioneering innovation generated huge savings in operation for Seoul Metro and increased its train operations efficiency as train vibrations were significantly reduced. Today, Seoul Metro is migrating all its ballasted tracks to the Slab Track configuration.