The U.S. economy accelerated in the second quarter as consumers ramped up spending and businesses invested more on equipment, but persistent sluggish wage gains cast a dark shadow over the growth outlook. SEE MORE US coal carload counts increased for the second week and have reached a level last seen in February, Association of American Railroads data showed Wednesday. SEE MORE Spot styrene butadiene rubber (SBR) prices in India look set to spike as South Korean suppliers raised their export offers to the country amid heftier anti-dumping duties (ADDs) imposed on their competitors from Europe and Thailand. SEE MORE US July polyethylene (PE) contracts were flat for the second consecutive month, sources said on Thursday. SEE MORE