Nantong, formerly known as Tongzhou, is a prefecture-level city under the jurisdiction of Jiangsu Province, one of the 27 cities in the central area of the Yangtze River Delta, the economic center of the northern wing of the Yangtze River Delta in China and a modern port city approved by the State Council. Nantong Dieshi is the largest home textile base in China, and 90% of the four-piece sets in China are sent from here, with many styles and cheap prices.