STC to invest MXN305.59 million for metro improvement in 2015 June 11, 2015 | Latin America News Sistema de Transporte Colectivo (STC), the government body responsible for Mexico Metro, has announced plans to invest MXN305.59 million to conduct 11 improvement works for Lines A, 3, 5 and 12 during... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password