Aerial photo taken on May 19, 2019 shows a view of the Yang'ai tea garden in Guian New Area, southwest China's Guizhou Province. As one of the country's pilot zones, Guian New Area is a national demonstration area of inland opening-up economy. Despite one of the least developed regions in China, Guizhou has pioneered China's big data industry due to its climate, power supply and network infrastructure. (Xinhua/Ou Dongqu)