Ferrocarriles Chiapas-Mayab
Ferrocarriles Chiapas-Mayab (reporting mark FCCM) was a state-owned railroad company in southeastern Mexico. It was operated by a consortium led by Genesee & Wyoming and was later taken over by the Secretariat of Communications and Transportation after the concession was relinquished in 2007.
Source: Wikipedia — Ferrocarriles Chiapas-Mayab (CC BY-SA 4.0)