U.S. Silica Holdings Inc, based in Katy, Texas, specializes in producing and selling commercial silica. The company caters to a wide range of industries, including oil and gas, where its silica products are used in hydraulic fracturing. It also supplies whole grain silica for glass manufacturing, foundry industry, and various industrial minerals for construction, chemicals, and more. Additionally, U.S. Silica offers engineered materials from diatomaceous earth, clay, and perlite, alongside providing logistics and labor services. Established in 1894, it serves a diverse client base from oilfield services to building products and specialty markets.