United States Lime & Minerals, Inc. (NASDAQ: USLM) is a leading producer of lime and limestone products, offering a comprehensive portfolio of quicklime, hydrated lime, crushed stone and related derivatives. Headquartered in Overland Park, Kansas, the company operates multiple quarries and processing facilities across key mineral-rich regions of the United States, including the Midwest, Southeast and Rocky Mountain states. Its products serve a diverse array of end markets, from steel, environmental remediation and water treatment to construction aggregates, steel slag recycling and agriculture.
Since its founding in 1910, United States Lime & Minerals has cultivated a strong reputation for high-purity lime and limestone materials. The company’s quicklime and hydrated lime are utilized in pH control, flue-gas desulfurization, industrial wastewater treatment and pulp and paper processing, while its crushed stone offerings support highway and infrastructure projects, railroad ballast production and residential construction. Through an integrated network of quarries, kilns and distribution terminals, USLM maintains reliable supply chains and just-in-time delivery capabilities for customers across North America.
Over the course of its more than a century of operations, USLM has pursued a strategic blend of organic growth and targeted acquisitions to bolster its production footprint and product mix. The company emphasizes operational excellence, safety and environmental stewardship, investing in modern kiln technology, dust collection systems and reclamation processes to minimize its ecological impact. Its long-standing relationships with industrial and municipal clients reflect a consistent focus on quality control, technical service and regulatory compliance.
Leadership at United States Lime & Minerals is anchored by President and Chief Executive Officer Michael J. Koshland, supported by a seasoned management team with deep expertise in mining, processing and logistics. The board of directors oversees corporate governance and strategic direction, ensuring that USLM remains well-positioned to serve evolving customer needs and regulatory requirements. With its combination of heritage operations, geographic diversity and commitment to sustainable practices, USLM continues to be a cornerstone supplier of lime and limestone products in the U.S. industrial minerals market.
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