LSB Industries, Inc., through its subsidiaries, engages in the manufacture and sale of geothermal and water source heat pumps, air handling products, and chemical products. The company operates in two segments, Climate Control Business and Chemical Business. The Climate Control Business segment manufactures and sells heating, ventilation, and air conditioning (HVAC) products that include geothermal and water source heat pumps; hydronic fan coils; and other HVAC products, such as custom air handlers and modular geothermal chillers. Its HVAC products are used in commercial/institutional and residential new building construction, renovation of existing buildings, and replacement of existing systems. This segment sells its products principally to original equipment manufacturers, contractors, and independent sales representatives, as well as hotels, motels, schools, hospitals, apartment and office buildings, and other commercial/institutional or residential structures. The Chemical segment manufactures and sells anhydrous ammonia, fertilizer grade ammonium nitrate, urea ammonium nitrate, and ammonium nitrate ammonia solution for agricultural applications; commercial grade anhydrous ammonia, ammonium nitrate, sulfuric acids, nitric acids in various concentrations, mixed nitrating acids, and diesel exhaust fluid for industrial applications; and industrial grade ammonium nitrate and solutions for the mining industry. This segment sells its products primarily to the polyurethane, paper, fibers, fuel additives, emission control, and electronics industries, as well as to farmers, ranchers, fertilizer dealers, distributors, and explosive manufacturers. Further, the company sells industrial machinery and related components to machine tool dealers and end users. LSB Industries, Inc. sells its products primarily in Canada, the Middle East, Mexico, Central and South America, Europe, and south and east Asia. The company was founded in 1968 and is based in Oklahoma City, Oklahoma.