Iran's export train went to China The first container train to export a place was sent to China and at the same time 460 tons of sodium chlorate traveled from Semnan to Turkey by train in order to expand Iran's export train routes. With the increase of maritime restrictions, the rail transportation of goods from China to Iran increased about 10 times, and the arrival of Chinese trains increased from once every 3 to 4 days to 1 train per day. - Link.