UNITED STATES LIME & MINERALS INC

United States Lime & Minerals, Inc., incorporated in 1950, conducts lime and limestone operations. The company manufactures lime and limestone products, serving primarily the construction (including highway, road, and building contractors), industrial (including paper and glass manufacturers), environmental (including municipal sanitation and water treatment facilities and flue gas treatment processes), metals (including steel producers), roof shingle manufacturers, agriculture (including poultry producers), and oil and gas services industries. Headquartered in Dallas, Texas, the company operates lime and limestone plants and distribution facilities in Arkansas, Colorado, Louisiana, Missouri, Oklahoma, and Texas. These operations are managed through wholly owned subsidiaries including Arkansas Lime Company, ART Quarry TRS LLC (DBA Carthage Crushed Limestone), Colorado Lime Company, Mill Creek Dolomite, LLC, Texas Lime Company, U.S. Lime Company, U.S. Lime Company-Shreveport, U.S. Lime Company-St. Clair, and U.S. Lime Company-Transportation. Additionally, through its wholly owned subsidiary, U.S. Lime Company-O & G, LLC, the company holds royalty and non-operated working interests in natural gas wells located in Johnson County, Texas, within the Barnett Shale Formation. The company produces high-quality limestone from its open-pit quarries and underground mines, which it sells as crushed limestone or processes into higher-value lime and limestone products such as pulverized limestone ("PLS"), quicklime, hydrated lime, and lime slurry.