The thermal coal operations in Colombia constitute a fully-integrated mine-railway-port system consisting of the El Hatillo coal mine and the Cerro Largo coal deposit, both located in the Cesar department; Sociedad Portuaria Rio Cordoba (SPRC), a coal port facility on the Atlantic coast of Colombia; and an 8.43% equity participation in the railway Ferrocarriles del Norte de Colombia S.A. that owns the concession and operation of the railway connecting the coal mines to SPRC.