The USDA says export sales for the week ending May 27th were mostly down from the week before, due to a combination of factors. Some U.S. commodities are relatively high priced due to tight supplies, the dollar was up late in the week, making U.S. goods more expensive on the export market, and there are bearish seasonal factors, such as Brazil holding most of the market share for soybeans. New crop corn sales fell sharply from the previous week because of a lack of new demand from China but were still nearly a half a million tons.