Haicheng Demai Environmental Protection Technology Co., Ltd., founded in 2013, is located in Pailou Town, Haicheng City, Liaoning Province, which is known as the world's magnesium capital. Covering an area of 50000 square meters, it has always been based on the business philosophy of science and technology, environmental protection and innovation. It is a modern high-tech enterprise that has signed a long-term cooperation agreement with the Institute of Process Engineering, Chinese Academy of Sciences. The relevant technical practical achievements jointly developed with the academician and expert team of the Institute have passed the evaluation and appraisal of the China Iron and Steel Association, and won a number of national invention patents.