Dr. Yanhui Sun is a metallurgical researcher at the Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing (USTB), where he has worked since September 2013. He earned his bachelor's degree in Iron and Steel Metallurgy in 1994, his master's degree in the same discipline in 1998, and his PhD in Metallurgical Engineering in 2002, all from USTB. Dr. Sun began his career at Harbin Special Steel Plant from September 1994 to July 1995. He subsequently joined USTB's School of Metallurgical and Ecological Engineering, serving there from April 2002 to July 2013 before assuming his current position. His research expertise encompasses four main areas: design and optimization of metallurgical slag systems; inclusion control theory and process technology; quality control and process optimization of continuous casting billets; and process optimization for Vacuum Arc Remelting (VAR) and Electroslag Remelting (ESR).