On the evening of February 18, Shandong Useen Group and Beijing University of Science and Technology held a technology research and development and service seminar in the conference room on the second floor of the foundry office building. Due to the pandemic, the meeting was held via video conference. Professor Zhang Jianliang, Secretary of the Party Committee of the School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Chairman of the Ironmaking Branch of the China Metal Society, Professor Wang Yaozu, Associate Professor Wang Hongwei, and Dr. Li Chuanhui of the University of Science and Technology Beijing, Yao Zhongxiu, Chairman of Shandong Useen Group, Xu Wende, Consultant, and Liu Zhiyong, Manager of the Technology Research and Development Department To attend a meeting. The managers of the company's smelting sector attended the meeting.