CHENGDU, July 23, 2016 (Xinhua) -- Secretary-General of the Organization for Economic Cooperation and Development Angel Gurria speaks at the G20 High-Level Tax Symposium in Chengdu, capital of southwest China's Sichuan Province, July 23, 2016. The Symposium marks the opening of a meeting of G20 finance ministers and central bank governors here. (Xinhua/Li Xin)