CF Industries Holdings, Inc. (NYSE:CF) today reported that its Donaldsonville, Louisiana nitrogen complex has undertaken an orderly shutdown at the facility in advance of Tropical Storm Isaac which is anticipated to impact the Donaldsonville area beginning in the next 12 to 24 hours. The Donaldsonville facility is located on the Mississippi River between New Orleans and Baton Rouge. “Our immediate concern is the safety and welfare of our employees and neighbors who may be impacted by the storm,” said Tony Will, senior vice president, manufacturing and distribution, CF Industries Holdings, Inc. “We are taking the plant down as a precautionary measure as part of routine hurricane procedures. We are in contact with our customers and will let them know when we expect to resume production and deliveries from the facility.” About CF Industries Holdings, Inc. CF Industries Holdings, Inc., headquartered in Deerfield, Illinois, is the holding company for the operations of CF Industries, Inc. CF Industries is a global leader in manufacturing and distribution of nitrogen and phosphate products, serving both agricultural and industrial customers. CF Industries operates world-class nitrogen manufacturing complexes in the central United States and Canada; conducts phosphate mining and manufacturing operations in Central Florida; and distributes plant nutrients through a system of terminals, warehouses, and associated transportation equipment located primarily in the Midwestern United States. The company also owns 50 percent interests in GrowHow UK Limited, a plant nutrient manufacturer in the United Kingdom; an ammonia facility in The Republic of Trinidad and Tobago; and KEYTRADE AG, a global plant nutrient trading organization headquartered near Zurich, Switzerland. CF Industries routinely posts investor announcements and additional information on the company’s website at www.cfindustries.com and encourages those interested in the company to check there frequently.