U. S. Silica Company

u.s. silica is a global performance materials company and a leading producer of commercial silica used in a wide range of industrial applications and in the oil and gas industry. u.s. silica’s wholly owned subsidiaries include ep minerals and sandbox logistics®. ep minerals is an industry leader in the production of products derived from diatomaceous earth, perlite, engineered clays, and non-activated clays. sandbox logistics® is a state-of-the-art leader in proppant storage, handling and well-site delivery, dedicated to making proppant logistics cleaner, safer and more efficient. during our 121-year history, we have developed core competencies in mining, processing, logistics and materials science that enable us to produce and cost-effectively deliver over 400 diversified product types to customers across our end markets. as of december 31, 2020, we operated 23 production facilities across the united states. we control 489 million tons of reserves of commercial silica, which can be processed to make 197 million tons of finished products that meet american petroleum institute (api) frac sand specifications, and 79 million tons of reserves of diatomaceous earth, perlite, and clays. the company is headquartered in katy, texas, and has an office in reno, nevada.

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