This chart shows that the US clearly leads in globe in exporting corn to other nations.
The USDA explained in their monthly report that United States exports of corn were 3.5 million metric tons last month. Corn makes the largest net contribution to the U.S. agricultural trade balance of all the agricultural commodities. In lay-mans terms, corn is the most important crop to our nation's economy. Follow this link to see a graph of which nations are on the receiving end of US corn exports. ---> http://www.ers.usda.gov/Briefing/corn/Gallery/Trade/CornImporters.jpg