Chinese President Xi Jinping (1st R, front) and other leaders of Shanghai Cooperation Organization (SCO) member states attend a restricted session of the 18th SCO summit in Qingdao, east China's Shandong Province, June 10, 2018. Chinese President Xi Jinping on Sunday chaired a restricted session of the 18th SCO summit in east China's coastal city of Qingdao. [Photo/Xinhua]