Extensive electrification is planned.The railway network expands by about 500 km per year according to the Ministry of R&T.According to plan,Iran’s railway lines are to reach 15,000 kilometers by 2015 and 25,000 kilometers by the year 2025.[16][17]The State Railways Company has 300 locomotives with an average lifespan of 40 years.[18]The Islamic Republic of Iran Railways,the Iran Power Plant Projects Management(Mapna)and Germany's Siemens have signed a contract for 150 IranRunner locomotives for passenger trains.Siemens is committed to exporting to Iran some 30 locomotives in the first phase and manufacture another 120 using domestic capacities and expertise over the next 6 years(2007).MLC(Mapna Locomotive Engineering and Manufacturing Company)is the manufacturing company responsible for this production.Another locomotive manufacturer in Iran is Wagon Pars which builds AD43C locomotives in partnership with Iranian power plant maker DESA diesel.[19] In 2009,€17 billion in foreign investment in rail industry have been secured,according to the Ministry of Road and Transportation of Iran.[20]