Line 9 is the newest line in the Barcelona Metro network, currently under construction, with only five complete stations, all in Santa Coloma de Gramenet. These first five stations opened on 13 December 2009. The complete line is a railway project to build a subway line with two branches spanning a good deal of the metropolitan area of Barcelona through Barcelona, Santa Coloma de Gramenet, Badalona, l'Hospitalet de Llobregat and El Prat de Llobregat. TMB is the company operating the line and handled by the division line in two: Line 9 and Line 10.