U.S. pork export sales surged during the week ending May 23rd. The USDA says pork sales were up sharply from both the previous week and the four-week average thanks to continued solid demand from Mexico, which purchased more than half of the weekly total. Old crop soybean, soybean meal, sorghum, rice, and cotton futures also showed week-to-week improvements, while beef, corn, wheat, and soybean oil were down. Export demand is driven by several factors, including domestic prices, the value of the dollar, and seasonal changes in supply.