SANYOUCO.Founded in 2002, SANYOUCO is a high-tech enterprise of electrochemical refining of non-ferrous metals listed on the Bejing Stock Exchange, with leading stainless steel cathode plate technology in China, and has become a supplier of global mining giant BHP Billiton. The company owns 93 patents, the intelligent equipment won the first set of award in Zhejiang Province, the revenue of 390 million yuan in 2023, through the excellent performance management and 6S mode of strict quality control, the products are selected as Zhejiang manufacturing standards. The company newly established more than 90 acres of plant, the main products won a number of honors such as Zhejiang Province Science and Technology Achievement, stripping unit through the European Union CE certification, stainless steel cathode plate was certified by the Zhejiang manufacturing character. The company is a national specialization, speciality and new small giant enterprise, with 72 patents in 2025, strategic cooperation with Hangzhou University of Electronic Science and Technology and other colleges and universities, and 3A enterprise credit rating.