United States Lime & Minerals, Inc. is a producer of lime and limestone products in the United States. The company operates primarily through a single core segment focused on lime and limestone operations, extracting raw materials from its own open-pit quarries and underground mines. These raw materials are processed into a variety of products, including high calcium quicklime, hydrated lime, lime kiln dust, lime slurry, and pulverized limestone.
The company generates revenue by supplying these bulk materials to a highly diversified customer base across multiple industries. Its products are essential for construction (highway, road, and building contractors), environmental applications (municipal sanitation, water treatment, and flue gas treatment), industrial processes (paper and glass manufacturing), metals (steel producers), oil and gas services, and agriculture. Geographically, the company operates plants and distribution facilities in Arkansas, Colorado, Louisiana, Missouri, Oklahoma, and Texas, serving customers primarily in the southern and central United States.
Historically, the company also held natural gas interests in the Barnett Shale Formation in Texas, but these operations are immaterial compared to its core mineral production and are no longer considered a reportable operating segment. United States Lime & Minerals distinguishes itself through its vertically integrated operations, owning substantial proven and probable limestone reserves that ensure long-term supply for its processing facilities.