EL Dorado Chemical Manufacturing Facilities:

In 1983 LSB industries acquired the El Dorado, Arkansas manufacturing facility from the Monsanto Company as well as related sales and distribution centers for agricultural and industrial markets. The site produces low-density and high-density ammonium nitrate prills, ammonium nitrate solution, nitric acid and sulfuric acid.

In 1996, El Dorado Chemical began operation of the Mixed Acid Plant in Wilmington, North Carolina. The plant supplies a wide range of nitric acid/sulfuric acid mixtures.

In 1998 El Dorado Nitrogen LP began nitric acid operations in new state-of-the-art facilities in Baytown, Texas.

The plant supplies 65% nitric acid for Bayer Corporation and other industrial customers.

In October 2000, LSB Industries acquired the Cherokee, Alabama site from LaRoche Industries. The Cherokee, Alabama facility is named Cherokee Nitrogen and manufactures ammonia (commercial and refrigeration grades), nitric acid, high-density ammonium nitrate solution and prill, urea, urea-ammonium nitrate solution, specialty ammonia-ammonium nitrate solutions and gaseous carbon dioxide.

In January 2001 LSB acquired the former Wil-Gro Fertilizer facility in Pryor, Oklahoma and renamed the site Pryor Plant Chemical Company. The manufacturing facilities include four ammonia plants, a carbon dioxide liquefaction plant, three nitric acid plants, ammonium nitrate solution and granular plants, two urea plants and a urea-ammonium nitrate blending facility. The Pryor facilities are currently "mothballed".