HOHHOT, March 6 -- Erenhot Port in north China's Inner Mongolia Autonomous Region has logged over 500 China-Europe freight trains so far this year, the local railway authorities said on Monday. Since the beginning of the year, in the face of continuously increasing transportation demand and strong growth in imports and exports, the Erenhot Port has opened a "green channel" for the operation of China-Europe freight trains, resulting in a 20-percent increase in the capacity of container transportation for the service, said Qin Zhicang from the China Railway Hohhot Bureau Group Co., Ltd. (....)