Xuzhou Tongyu Spatial Structure Co., LTD. (formerly Xuzhou Tongyu Group Co., LTD.) was founded in 1956. It is an enterprise approved by the Ministry of Housing and Urban-Rural Development with Grade 1 qualification for professional contracting of steel structure engineering, Grade 1 qualification for special design of steel structure engineering, Grade 2 qualification for general contracting of construction engineering, Grade 1 qualification for professional contracting of building curtain wall engineering and Grade 3 qualification for professional contracting of foundation and foundation engineering. It is one of the pioneers in the field of space structure in China and one of the founding units of the Space Structure Branch of China Steel Structure Association. So far, it is the domestic large-scale and powerful production and export base of construction grid, steel structure and pipe truss, and its products are exported to more than 40 countries and regions. The company can produce 80,000 tons of steel structure, pipe truss, grid products, and undertake nearly 300 projects annually, with an output value of more than 2 billion yuan.