On March 21, Shi Xiaoyan, the first level investigator of the Tropical Crops Division of the Agricultural Reclamation Bureau of the Ministry of Agriculture and Rural Affairs, and Xu Canguang, the director of the Economic and Trade Department of the China Agricultural Reclamation Economic Development Center, led the research team to investigate Hainan Rubber. Zhao Haifeng, member of the Party Committee and deputy general manager of Hainan Rubber, presided over the symposium.