U.S. corn export sales hit a marketing year high during the week ending November 23rd. The USDA says the big corn buyer was unknown destinations, which could turn out to be China when it is time for delivery. China did buy more than 100,000 tons of U.S. corn outright last week and was also the leading purchaser of soybeans, wheat, and sorghum. Beef and pork export sales were lower than a week ago. Export demand is influenced by several factors, including the value of the U.S.