Leling Changtai New Building Materials Co., Ltd. is a circular economy development model that Shandong Xingguang Sugar Group focuses on “developing new energy-saving materials, water conservation, soil conservation, environmental protection, and full use of renewable resources”. A new wall material project invested and constructed. Using the waste materials of Leyuan Thermal Power Co., Ltd. - fly ash, coal gangue, etc., annual production of 150 million pieces of autoclaved fly ash standard bricks, 300,000 cubic meters of concrete autoclaved blocks. That is, the country can save 400 mu of land per year, and it can also use the waste residue to produce new wall materials, reduce pollution and increase efficiency. At present, Changtai Company has obtained the registration certificate of the new wall material building energy-saving technology product issued by Dezhou City Construction Committee and the certificate issued by Shandong Provincial Department of Housing and Urban-Rural Development. Its products are Shandong Province new wall material building energy-saving technology products. Applied in the construction project of the province.