United States Lime & Minerals, Inc. is a manufacturer of lime and limestone products and supplying primarily the construction, industrial, metals, environmental, roof shingle manufacturers, agriculture and oil and gas services industries. The Company’s construction industry includes highway, road and building contractors. Industrial includes paper and glass manufacturers. Metals industry include steel producers. Environmental industry includes municipal sanitation and water treatment facilities and flue gas treatment processes. The Company operates lime and limestone plants and distribution facilities in Arkansas, Colorado, Louisiana, Missouri, Oklahoma and Texas through its wholly owned subsidiaries, Arkansas Lime Company, ART Quarry TRS LLC, 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.