President Xi waves to the staff at the Guoyuan Port in Liangjiang New Area, Southwest China's Chongqing municipality on Jan 4, 2015. [Photo/Xinhua]

Guoyuan Port, which plays important part in Chongqing's role as the shipping center of upper reaches of Yangtze River, has 16 5,000-ton berths with an annual capacity of 30 million tons of cargo.