China Post issues commemorative stamp to mark 18th SCO summit

A postal worker displays a sheet of postage stamps commemorating the 18th Shanghai Cooperation Organization (SCO) summit at the media center of the summit in Qingdao, east China's Shandong Province, June 9, 2018. China Post issued a commemorative stamp here on Saturday to mark the 18th SCO summit. (Xinhua/Li Ziheng)