CF Industries Holdings, Inc. (CF Holdings) is a manufacturer and distributor of nitrogen and phosphate fertilizer products in North America. The Company’s operations are organized into two business segments: the nitrogen segment and the phosphate segment. Its principal products in the nitrogen segment are ammonia, urea and urea ammonium nitrate solution (UAN). Its principal products in the phosphate segment are diammonium phosphate (DAP) and monoammonium phosphate (MAP) and granular muriate of potash (potash). CF Holdings’ core market and distribution facilities are concentrated in the midwestern United States grain-producing states. On September 28, 2009, the Company announced that it has acquired approximately 7% of Terra Industries Inc.