Aerial photo taken on Aug. 1, 2018 shows the construction site of a data center of Tencent in Gui'an New District in southwest China's Guizhou Province. Guizhou has become a pioneer in China's big data development. Big data is being widely applied in government management, business and daily life, contributing over 20 percent to the economic growth of Guizhou Province. The number of big data-related companies in Guizhou Province has grown from less than 1,000 in 2013 to more than 8,500 in 2018.(Xinhua/Ou Dongqu)