...Strong Parent Credit Linkage: Grupo Ferroviario Mexicano, S.A. de C.V. (GFM) and Ferrocarril Mexicano, S.A. de C.V. (Ferromex) ratings are supported by Grupo Mexico, S.A.B. de C.V.'s (Grupo Mexico) and subsidiaries' Issuer Default Ratings at `BBB+', Stable Outlook. Ferromex is 100% owned by GFM and has strong legal and operational ties with its parent. Infrestructura y Transportes owns 74% of GFM, and Union Pacific controls 26%. Leading Mexican Railroad Position: GFM is the leading company within the Mexican railroad transportation sector with a 55% market share of railway load distribution, measured in metric tons times kilometers traveled (tons-km). This compares to the next largest domestic competitor, Kansas City Southern de Mexico S.A. de C.V. (KCSM, Fitch Long-Term IDR of BBB¡ Positive Outlook) with a 34% market share. Railroad transportation penetration in Mexico is low and has significant potential for growth, with trucks accounting for 74% of transportation and rail accounting...