Aerial photo taken on July 10, 2019 shows a cargo ship leaving the Jingtang port area of Tangshan Port, North China’s Hebei province. The throughput of Tangshan Port reached 317 million tons from January to June this year, growing 4.83 percent year-on-year. [Photo/Xinhua]

Aerial photo taken on July 10, 2019 shows cargo ships at Jingtang port area of Tangshan Port, North China’s Hebei province. [Photo/Xinhua]

Aerial photo taken on July 10, 2019 shows the railway container freight dock at Jingtang port area of Tangshan Port, North China’s Hebei province. [Photo/Xinhua]