MTAB No 6, Kiruna loco shed, Sweden, Fri 24 July 2015 - 1605. Former SJ class T44 1235kW Bo-Bo diesel electric, one of two owned by MTAB (Malmtraffik AB). MTAB is a freight operating company jointly owned by the LKAB mining company and Swedish Railways (SJ). There is another freight company, MTAS, which is jointly owned by LKAB and Norwegian Railways (NSB). It is the two freight companies which actually operate the iron ore trains.