Photo taken on Nov 26, 2020 shows a 5G-themed exhibition held during the World 5G Convention in Guangzhou, South China's Guangdong province. [Photo/Xinhua] BEIJING - The number of 5G mobile users in China had reached 428 million by the end of May, the Ministry of Industry and Information Technology (MIIT) said on Tuesday. As of the end of May, the country had launched 1.7 million 5G base stations, the MIIT said in a statement. The improved network infrastructure has laid a solid foundation for the development of the digital economy, the ministry said, adding that 5G technology has been widely...