AGREEMENT (Nov. 29, 1996). The assets that are part of the Northeast general rail communication line, and the buildings and facilities for the delivery of auxiliary services are destined to the service of the Ministry of Communications and Transportation.

The Northeast general railway communication line has a total length of 4,282.69 km. The main routes of this line are Mexico - Nuevo Laredo (1,292 km), Mexico - Veracruz (through Jalapa, 470 km), and Mexico - Lazaro Cardenas (788 km). This line connects the states of Nuevo León, Tamaulipas, Coahuila, San Luis Potosí, Zacatecas, Guanajuato, Querétaro, Hidalgo, Mexico, Tlaxcala, Puebla, Veracruz and Michoacán, the ports of Lazaro Cardenas and Tampico, the Nuevo Laredo and Matamoros border lines, and the Union Pacific, Tex-Mex, Southern Pacific and Burlington Northern-Santa Fe railways.

ORIGINAL TITLE (Feb. 3, 1997). The concession of the general communication railway line that corresponds to the Northeast trunk line was granted to Ferrocarril del Noreste, S.A. de C.V. The concession includes the railway, right-of-way, traffic control centers and railway operation signals.

The term of the concession is 50 years, starting on the date of completion of the delivery -reception due diligence of the railroad track and the assets, or as of July 31st, 1997, whatever occurs first.

FIRST AMENDMENT (Mar. 20, 2001). The section of the Morelos highway (km M-229+364.75 to km M-262+094.30) is reverted to the Federal Government.
SECOND AMENDMENT (Dec. 19, 2006). Annexes are modified to incorporate details on the maintenance workshops, as well as adaptations to the business plan of the catenary of the Buenavista-Huehuetoca section.
THIRD AMENDMENT (Mar. 26, 2014). Lands, where platforms are located at the New Passenger Railway Station in the city of San Luis Potosí are excluded.
FOURTH AMENDMENT (Apr. 17, 2018). The Matamoros-Brownsville railway bypass, maneuver yard, administrative buildings and international bridge are included
FIFTH AMENDMENT (Dec. 20, 2017). The property "La Cedrera" in the municipality of Uruapan, Michoacán is excluded.
SIXTH AMENMENT (Aug. 18, 2022). Includes the conclusion of the construction of works related to the bypass in the city of Celaya, Gto. and the exclusivity of the public cargo transportation service increased 40 years.