For a long time, Iran has subway systems only in Tehran, which is the capital of Iran.
But, on October 10th, 2011, a subway line was opened in Mashhad.
Rolling stocks used on the line are manufactured at CNR Changchung. As I mentioned before, Mecca also installed rolling stocks manufactured at CNR Changchung.
Not only in Middle East, but also in Eastern Asia, trains manufactured by CNR Changchung are used. For example, Hong Kong MTR began to use CRC-Stock EMU trains.
What's the strategy of CNR Changchung?