United States Lime & Minerals, founded in 1948, produces and sells lime and limestone products throughout the United States. It extracts limestone from underground quarries, and processes it for sale as pulverized limestone, quicklime, hydrated lime, and lime slurry. The company s clients include highway, street, and parking lot contractors, steel and chemical producers, municipal sanitation and water treatment facilities, paper and roofing shingle manufacturers, and poultry farms and glass manufacturers. It has operating plants located in Arkansas, Colorado, Oklahoma and Texas. The company's pulverized limestone is also used in the production of roofing shingles, fossil fuel boilers, and agricultural production. United States Lime & Minerals, Inc. is a member of National Lime Association, and is headquartered in Dallas.