Bids invited to conduct preliminary study for Santiago Metro Line 9 and Line 6 extension, Chile November 15, 2021 | Latin America News Empresa de Transporte de Pasajeros (Metro SA) has announced plans to invite two bids to conduct preliminary studies for the planned Line 9 and for the expansion of the existing Line 6 of Santiago Metr... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password