Official website shows that a native of Xuzhou, as of May, 2023, Fengxian County of Xuzhou is considered to be the most backward county, located in the northwest of Xuzhou City, Jiangsu Province, at the junction of four provinces. Fengxian County is located in a remote area of Xuzhou City, with inconvenient transportation and relatively scarce resources. Fengxian county mainly relies on traditional heavy industries such as coal, steel and building materials, lacking high-tech industries and emerging industries, and its investment structure is mainly infrastructure and real estate, which makes its long-term development unsustainable.