Iran Safir passenger locomotive project includes engineering, manufacturing and procurement of the 150 diesel–electric locomotives based on transfer of technology (TOT) from SIEMENS Company. Mapna Locomotive Company (MLC) has successfully accomplished the project and passed mass production level of these type of locomotives by establishing a robust supply chain of recognized international vendors. MLC managed to localize several advanced technologies such as welding, machining, precise measuring, painting, load test and etc., in this project.