Spot propylene (C3) prices in northeast Asia fell, snapping three consecutive weeks of increase, as buying sentiment weakened amid an easing of tight supply conditions. SEE MORE Oil posted the biggest gain in two weeks as deadline for a U.S. decision on the Iranian nuclear accord approached and the dollar weakened. SEE MORE Base metals prices on the London Metal Exchange were mostly up on Wednesday May 2, after participants in China and Europe returned from public holidays to boost volumes and prices. SEE MORE Viet Nam made a trade surplus of US$3.39 billion in the first four months of 2018, in which foreign direct investment (FDI) sector, including fuel, took the lead with $11.17 billion. This was reported by the General Statistics Office (GSO). SEE MORE The US Department of Commerce will impose preliminary antidumping duties on polyethylene terephthalate imports from Brazil, Indonesia, South Korea, Pakistan and Taiwan, before making a final determination on the duties on September 17, it said Tuesday. SEE MORE