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Terra Industries Inc. is a leading international producer of nitrogen products for agricultural, industrial and environmental markets. We own and operate six North American nitrogen products manufacturing facilities and own 50% interest in joint ventures in the United Kingdom and The Republic of Trinidad and Tobago. Our headquarters is in Sioux City, Iowa. Terra provides products that are essential to meeting the needs of a growing global population. Our nitrogen product line includes ammonia, urea ammonium nitrate solutions (UAN), ammonium nitrate (AN) and urea. With the capacity to produce about 6.5 million tons of product at our North American facilities annually, Terra is a vital contributor to the markets we serve. Our Missi  Click for details>>