The services managed by this company were also integrated into the new TACyL holding company. Following the creation of TACyL, the national government began investing heavily in the country's freight network with an AR$12 billion investment to improve its infrastructure, renewing 30% of the rails over the following 2 years. This investment also included purchasing 100 locomotives and 3,500 freight cars from China for TACyL which are expected to arrive in 2015, while a separate investment saw the purchase of a further 1,000 cars from Argentine company Fabricaciones Militares. Further renovation of infrastructure for passenger lines, such as the complete replacement of rails on the Buenos Aires - Rosario - Córdoba - Tucumán route of the General Mitre Railway, will aid private operators such as Nuevo Central Argentino who use those segments. Soon after nationalisation, the government began looking to expand the fleet of the company and began making orders both domestically and abroad. One order consisted of 1000 freight wagons from Argentine state-owned company Fabricaciones Militares. The company also ordered 100 locomotives and 3,500 carriages from China as part of a plan that also included the purchase of 30,000 rails to repair parts of the line. In September 2015, it was announced that the original Chinese investment of US$2.4 billion in the Argentine freight network was being doubled to US$4.8 billion and new purchases and infrastructure projects would ensue. Prior to the deterioration of the rail network, Argentina had a greater number of rolling stock manufacturers which supplied trains and cars throughout the railways, however today only a few companies like Materfer, Grupo Emepa, TecnoTren and Fabricaciones Militares remain. While Materfer make the CMM 400-2 diesel multiple units and the MTF-3300 diesel cargo locomotives, Emepa manufacture the Alerce EMU/DMU which is to be used on the Belgrano Norte Line. At the same time, Fabricaciones Militares only makes freight cars, such as those used in the Belgrano Cargas network, though in the past they made electric trains for suburban and underground lines. There have been signs that the industry is reviving and expanding, while at the same time there are many workshops around the country which refurbish and modernise older rolling stock. Though the industry is being revived, the country no longer has the capacity to manufacture long-distance locomotives and EMUs for suburban lines, so these are mostly imported from China and are made by companies such as CSR Corporation Limited and China CNR Corporation, with CSR planning to open a factory in Argentina and purchasing the Argentine company Emprendimientos Ferroviarios, which is now its subsidiary.