The "Eastern Corridor" of the CRE trains is formed by the Manzhouli, Suifenhe and Tongjiang railway ports, making it China's largest cluster of CRE train ports, accounting for 30% of the country's total annual traffic. Currently, 27 routes pass through the "Eastern Corridor," connecting China with 14 countries including Poland, Germany, Belgium and the Netherlands. The corridor links over 60 cities across China, such as Changsha, Zhengzhou, Chengdu, Xi'an, Nanjing and Suzhou. The transported goods span 12 major categories, including electrical products, commercial vehicles, daily necessities, industrial machinery, metals and agricultural by-products.