The 2019 World Internet of Things Expo came to a close Tuesday in Wuxi. 195700 visitors toured the exhibition venues of the 4-day expo, a gain of 6000 from last year. Wuxi signed contracts on the launch of 57 major investment projects during the expo. 27 public platforms were unveiled or put into operation. The 57 investment projects will bring a total investment of 20 billion yuan to Wuxi. The 2019 World Internet of Things Expo, co-sponsored by the Ministry of Industry and Information Technology and the Jiangsu Provincial Government, opened in Wuxi on Saturday.