CF Industries Receives Louisiana and Iowa Air Permits DEERFIELD, Ill.–(BUSINESS WIRE)–Jul. 16, 2013– CF Industries Holdings, Inc.(NYSE:CF) today reported that regulators in Louisiana and Iowa have issued final air emission permits related to the company’s capacity expansion projects in both states. The Donaldsonville, Louisiana project consists of new urea and UAN plants scheduled to come on stream in the second half of… Read more »