Corn is a main raw material of livestock feed and is also necessary in daily life as the main raw material in production of processed food such as cornstarch, cornflake, isomerized sugar, alcohol etc.. Currently the world corn production is approximately 1.1 billion tons, and is one of the three major grains in the world along with wheat and rice. U.S. is the world’s prominent corn producer, followed by Brazil and Argentina. Even in the U.S.. corn is mainly produced in the Corn Belt area (covers states such as Iowa, Illinois, Indiana) in the middle west of the U.S..

Further, the market price of corn sensitively reflects the acreage size and the weather of the growing season of the it of the U.S. for it’s huge production amount. Furthermore, the amount of corn imported to Japan is three times the amount of that of wheat, and five times the amount of that of soybeans. Also, corn is the most imported agricultural products in money amount. As you can assume from above, Japan imports approximately 80% of it’s corn from the U.S., and is one of the most imported goods from U.S. in money amount.