Stepping out of the southwestern copper production area and taking off heavy protective clothing, the reporter walked to the Yuntong Metallurgical Research Institute not far from the neighboring area, and all the R&D projects of the project team that had just finished the “Planting and Promoting of Sewage and Acid Raising Project in 2018”. The staff met by chance.

“Without any ready-made materials and processes to learn from, we have independently completed the entire process from laboratory testing to equipment selection, industrialization testing, and industrial production.” Yang Kunbin, Ph.D., Head of Technology R&D of the project team, and Dr. Yang Kunbin, Nonferrous Metallurgy The reporter frankly stated that at the just-concluded meeting, the court demanded that the purity and output of oysters be further improved this year. Although they felt a lot of pressure, they also had enough confidence.