This photo taken on May 5, 2023 shows the venue for the First Hunan (Huaihua) RCEP Economic and Trade Expo in Huaihua City, central China's Hunan Province.(Xinhua/Yu Chunsheng)　　CHANGSHA, May 8 (Xinhua) -- A total of 113 projects with a combined investment of about 75 billion yuan (10.84 billion U.S.