On May 10th, the SCM Shanghai Huifei Mineral Processing Business Team collaborated with Dr. David Miller, a mineral processing technology expert from Chevron Phillips (CP CHEM) in the United States, to visit the Yunnan Pulang Copper Mine Mineral Processing Plant. They visited the plant's current standard processes and industrial production on site, and had a comprehensive and friendly exchange and sharing with the CP team. Both sides established a full consensus, which will promote the experimental process of industrialization of compound reagents in the later stage, Lay a solid foundation for cooperation.