Tomen America acquired Sours Grain Company in 1989 and re-established it as Tomen Grain Co. in January 2002. Tomen Grain Co. handles nearly 20 million bushels of grains and by-products every year. The company provides services such as quality checks and storing of corns and soybeans, for export to Japanese markets. From area farmers, country elevators and starch industries, Tomen America...