Lu Feng from the 2019 Beijing Horti-Expo construction group spoke about the design and technology behind the China exhibition area inside the Expo. "The Tongxin Square represents the unification of the Chinese nation," he said. The International Horticultural Exhibition 2019 Beijing will open in 100 days. The 162-day expo will exhibit the latest achievements in floriculture, and fruit and vegetable farming at the foot of the Great Wall in Yanqing.