The USDA's February supply and demand report showed a surprising decrease in global opening stocks and production forecasts for corn, which would usually lead to a increase in futures prices. However, futures in Chicago fell due to a significant decrease in world import and export forecasts, particularly due to a reduction in corn imports by China and a decrease in demand for expensive Ukrainian corn. Despite improving weather conditions in Argentina and Brazil, which could increase production, futures prices fell in Chicago but rose slightly in Paris.