CF Industries Holdings, Inc. (NYSE: CF) produces hydrogen and nitrogen products for clean energy, fertilizer, emissions reduction, and other industrial uses. In the United States, Canada, and the United Kingdom, the company operates nitrogen manufacturing complexes. Ammonia, granular urea, UAN, AN, and Others are among the segments. Ammonia, granular urea, urea ammonium nitrate solution (UAN), and ammonium nitrate are the company's main nitrogen products (AN).