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Chinese President Xi Jinping sent a congratulatory letter to the 2019 China International Big Data Industry Expo (Big Data Expo), which kicked off on Sunday in Guiyang, southwest China's Guizhou Province. In the letter, Xi said that all countries around the world need to strengthen cooperation, deepen exchanges, and seize the opportunities of the development in digitization, networking, and artificial intelligence. As China's first big data pilot zone, the mountainous province of Guizhou has attracted heavyweight players, including Apple, Qualcomm, Huawei, Tencent, Alibaba, and Foxconn, to establish cloud computing and big data centers as well as regional headquarters.