Oil prices rose on Thursday, extending gains on growing evidence of disruptions to crude supply from Iran and Venezuela and after a fall in U.S. crude inventories. SEE MORE Base metals have lost as much as a fourth of their value in the last two months owing to weak global demand in the wake of escalating trade war between the US and China. SEE MORE Asia’s naphtha spot premiums have flipped to discounts on the back of a well-supplied market which is poised to see greater western arbitrage flows. SEE MORE China’s polymeric methyl di-p-phenylene isocyanate (PMDI) import prices plummeted by more than $200/tonne within a week, to fresh two year-low levels, and the downtrend looks set to extend further, if downstream demand fails to pick up soon. SEE MORE Low-grade prices maintained their slight premium over high-grade, amid acute tightness among broken cathodes and greater competition for high-grade sales. SEE MORE