On May 26, 2019, the 2019 China (Shitai) Selenium Industry Development Conference, jointly organized by the International selenium Research Society, the Shitai County Committee of the Communist Party of China and the people's Government of Shitai County, opened at the Yangsheng Hotel of World Village in Xianyu Town. Guo Zuoyu, the President of the Functional Agricultural Products Committee of China Association for the Promotion of International Agricultural Cooperation, participated and delivered a speech.