China has become a significant export market for U.S. DDGS, a co-product of the corn ethanol process
The expansion of corn-based ethanol production in the United States yields a large volume of residual co-products called distillers dried grain with solubles (DDGS). Approximately 75 percent of DDGS are utilized in the domestic U.S. market, but Chinese importers seeking raw materials for animal feed have emerged as a significant export market. High feed prices and favorable tax treatment within China stimulated a surge of imports of U.S. DDGS during 2009-11. China's potential demand for U.S. DDGS depends on various factors that include the price of corn, Chinese policy, and the availability and price of other substitute feed ingredients, such as the byproducts of grain processing in China (residual products from alcohol production). Demand is robust, but slower growth in the U.S. supply of DDGS and uncertainties about Chinese policy may constrain growth in exports to China. This chart is found in China's Market for Distillers Dried Grains and the Key Influences on Its Longer Run Potential, FDS-12g-01, August 2012.