Iran's first export train leaves for China Iran has launched its first export freight train from the city of Qom to China, while 460 tons of sodium chlorate were transported by train from Semnan province to Turkey, as Tehran seeks to expand its export routes. Against the background of increasing restrictions on maritime transport, cargo shipments by train from China to Iran have increased tenfold, while the frequency of Chinese trains arriving in Iran has increased from one every three to four days to one day, reports the Fars news agency.