According to the monitoring data of SunSirs, on December 14, the price of MTBE in Shandong was 5,850 RMB/ ton, down 1.85% from the previous working day and up 45.04% year-on-year. The MTBE market continued to decline and adjust, but as the price fell to a low level, the market demand improved. Crude oil fell slightly, negative market mentality.