Li Qiang (L), Shanghai's Party chief, and Liu Shiyu, chairman of China Securities Regulatory Commission, hit the gong together to open the trading session of China's yuan-dominated crude oil futures contracts at the Shanghai International Energy Exchange in east China's Shanghai, March 26, 2018. China on Monday launched trading of yuan-denominated crude oil futures contracts at the Shanghai International Energy Exchange, the first futures contracts listed on China's mainland to overseas investors. (Xinhua/Fang Zhe)