SNCF main business of the SNCF Group, which in 2017 had €33.5 billion of sales in 120 countries. The SNCF Group employs more than 260,000 people. Since July 2013, the SNCF Group headquarters are located in a Parisian suburb at 2 Place aux Étoiles in Saint-Denis. The President of the SNCF Group is Guillaume Pepy. SNCF operates almost all of France's railway system, including the TGV ("Train à Grande Vitesse", meaning "High-speed train"). In the 1970s, the SNCF began the TGV high-speed train programme with the intention of creating the world's fastest railway network. It came to fruition in 1981, when
Argentine State Railway companies in the country, operating a railway network of 6,617 km. By 1936 the railway network had been extended to 9,690 km. Most of the railway lines built by the Argentine state were metre gauge because of financial reasons. In 1937 the State company began to acquire some existing companies with the purpose of competing against British railway companies. In 1948 Argentine State Company (along with British and French companies) became part of Ferrocarriles Argentinos after nationalisation of the railway network, headed by then-President Juan Domingo Perón. Therefore, the Central Northern rail lines were added to General Belgrano Railway network