Wang Xin, Chief Engineer at the National Grain Trade Center of China, has nearly 20 years of experience in grain and oil e-commerce. She has led the research and development of the national grain bidding system, the establishment of the national grain e-trading platform, and the formulation of national standards for grain trading. She has also facilitated policy-oriented transactions totaling more than 900 million tons of grain, making significant contributions to the reform of China's grain circulation system.