SDIC Transportation Company is the only national investor representative of central-level equity (operating funds) in the domestic port industry. The company has participated in investments in 18 key ports along the coast. The planned throughput capacity of the holding port projects exceeds 300 million tons. The port projects operated by the holding include the 50 million tons coal terminal in Caofeidian Port Area of ??Tangshan Port, the 30 million tons coal terminal in Jingtang Port Area of ??Tangshan Port, Zhenjiang Port, Yangpu Port, etc.; Construction Holdings The port projects of Tangshan Port, Jingtang Port Area, 30 million tons coal terminal, started trial operation in 2008, and began formal operation in 2009. Tangshan Port, Caofeidian Port Area, 50 million tons coal terminal, entered trial operation in February 2009, Zhenjiang Port Dagang Phase III, The third phase of Yangpu Port also entered formal operation in 2009. These construction projects include three 100,000-ton wharves, seven 50,000-70,000-ton wharves, and four 20,000-35,000-ton wharves. The designed throughput With a capacity of nearly 100 million tons and a total investment of 11 billion yuan, all projects have been completed and put into production. The company also holds a controlling stake in SDIC Shandong Linyi Road and Bridge Company, and invests in port projects in Zhangjiagang, Nantong, Yantai, Yingkou, Ningbo and other regions, as well as Beijing Haoda Liuliqiao Passenger Transport Main Hub, Qiancao Railway, and Inner Mongolia-Hebei Railway (Baotou to Jining Second Double Line, Jining to Zhangjiakou) and other projects.