Wang Chengmin, male, born in 1983, senior engineer, graduated from School of Chemical Engineering, East China University of Science and Technology, majoring in polymer materials and Engineering in 2006; In 2009, he graduated from School of Materials Science, Dalian Jiaotong University. In 2021, Tsinghua University and Dalian Jiaotong University will jointly develop the major of materials science and engineering. Engaged in the research and development, industrialization construction and technology transformation of ultra-pure alumina and ultra-fine oxide for nearly 15 years, completed the development of high-purity alumina by alcohol aluminum process, and special flake alumina products for thermal conductivity and pearling; With rich experience in the industrialization of nano and high purity oxides, he has published more than 10 papers and authorized 11 invention patents.