A cargo ship is seen at an ore dock of Qinhuangdao Port in north China's Hebei Province, Jan. 14, 2018. The total cargo throughput of Qinhuangdao Port, Tangshan Port and Huanghua Port in Hebei reached 1.09 billion tonnes in 2017, 140 million tonnes higher that in 2016. (Xinhua/Yang Shiyao)

A cargo ship is seen at an ore dock of Qinhuangdao Port in north China's Hebei Province, Jan. 14, 2018. The total cargo throughput of Qinhuangdao Port, Tangshan Port and Huanghua Port in Hebei reached 1.09 billion tonnes in 2017, 140 million tonnes higher that in 2016. (Xinhua/Yang Shiyao)