China home to 7 of world's top 10 busiest ports

A cargo ship berthed at the Port of Shanghai, July 12, 2014. The port has been the busiest in the world since 2010. Yearly cargo capacity is now surpassing 700 million tons. [Photo: VCG]

An aerial photo taken on April 20, 2017 shows the Ningbo-Zhoushan Port in Zhejiang province. The port has a yearly throughput of over 20 million twenty-foot Equivalent Unit (TEU), which is a measurement used to describe port capacity. [Photo: VCG]

A cargo ship is being loaded at the Port of Qingdao in Shandong province, April 4, 2009. The port has a yearly a yearly throughput of about 18 million TEU. [Photo: VCG]

An aerial photo taken on June 1, 2014 shows the Port of Guangzhou. The port has a yearly cargo handling capacity of over 500 million tons. [Photo: VCG]

An aerial photo taken on December 22, 2011 shows the Kwai Tsing Container Terminal Port in Hong Kong. [Photo: VCG]

An aerial photo shows the Port of Shenzhen. The port has a yearly cargo handling capacity of over 200 million tons. [File photo: VCG]

A cargo ship being loaded at the Port of Tianjin, April 4, 2009. The port has a yearly cargo handling capacity about 500 million tons. [Photo: VCG]