Tian Xiaoyu, Director of the Xiangxi Tujia and Miao Autonomous Prefecture, Visits Huacheng Biotech for Investigation and Research On September 23, Tian Xiaoyu, Xiangxi Tujia, and Miao Autonomous Prefecture, accompanied by leaders of Changsha High-tech Zone, visited Huacheng Biotech for investigation and research. Yi Deping, Executive Vice President of Huacheng, show the team members around during their visit.