Fangchenggang is a prefecture-level city in the south of Guangxi Zhuang Autonomous Region, People's Republic of China. Fangchenggang is …Fangchenggang is a prefecture-level city in the south of Guangxi Zhuang Autonomous Region, People's Republic of China. Fangchenggang is the southernmost port in China and is located in Fangcheng. It primarily services bulk carriers, of up to 180,000 t deadweight tons in size. The closest airport is located in Van Don, about 91 km away. As of December 2018, the region had large amounts of land reclamation in progress to build new and additional ports.