Concessão Metroviária do Rio de Janeiro S.A. (MetrôRio) is a Brazilian subway firm which holds the operating concessions for the underground railway network that serves the city of Rio de Janeiro. Founded in 1979 and originally operating five stations on one line, it now covers 48km divided into two lines with 34 stations. The concession holder transports nearly 550,000 passengers/d on average. In 1998, MetrôRio was awarded the concession to operate the Rio de Janeiro subway until 2038. MetrôRio is controlled by local infrastructure group Invepar. As part of infrastructure projects for the Rio de Janeiro 2016 Olympics, MetrôRio has increased its fleet by 63% by acquiring 19 new trains from China. The first trains were put into use in 2012 and became fully operational in 2013.