US Silica (SLCA) is a publicly traded company that specializes in the production of industrial minerals, including silica sand, proppants, and whole grain silica. The company operates in two segments: Oil & Gas Proppants and Industrial & Specialty Products. The Oil & Gas Proppants segment provides frac sand used in hydraulic fracturing operations, while the Industrial & Specialty Products segment offers a range of products used in various industries, such as glass, foundry, and construction. US Silica has operations in the United States, Canada, and Mexico and is headquartered in Katy, Texas.