Dr. Hongxing Gui is a researcher and the director of NR processing research office of Rubber Research Institute CATAS, and the post scientist of Primary processing technology of China NR Research System, member of Rubber Committee of China Chemical Engineering Society, member of NR Sub-Committee and Latex Products Sub-Committee of National Professional Standardization Technical Committee. He engaged in NR processing technology research and promotion, application work for a long-term, and has carried system, in-depth research work on high performance processing technology of NR, low or none ammonia preservation technology of NR latex.