Belgrano Cargas company also took over some services from Urquiza, San Martín and Sarmiento railways. Belgrano Cargas Belgrano Cargas S.A. was an Argentine State-owned company which operated the gauge freight rail network built by Central Northern and Province of Santa Fe Railways, which became part of Belgrano Railway network after railway nationalization of 1948. The network operated by Belgrano Cargas extended through the provinces of Buenos Aires, Santa Fe, Córdoba, Mendoza, Santiago del Estero, San Juan, La Rioja, Catamarca, Tucumán, Chaco, Formosa, Salta and Jujuy. The line also reached all the Argentina's neighbouring countries, such as Bolivia, Uruguay, Brazil, Chile and Paraguay.
Tobacco industry in Argentina are concentrated in the north of the country. The provinces of Jujuy and Salta (in the north-west), and Misiones (in the north-eastern Mesopotamia), are the leading ones, with over 45,000 tonnes/year each. The other tobacco-producing provinces are Tucumán, Corrientes, Chaco and Catamarca. Tobacco plays an important role in the economy of the producing areas, which are comparatively poor provinces. The Argentine tobacco industry employs 500,000 people, about half of them directly involved in the planting and harvesting, only about 2% in the manufacturing of the derived products, and the rest in distribution and sales. Therefore, despite the fact that the