Apollo

U.S. Silica Holdings is a prominent producer of high-quality silica products, including unground silica, ground silica, fine ground silica, calcined kaolin clay, and aplite. Established over a century ago, the company traces its origins to the discovery of the Oriskany sandstone deposit in West Virginia by Henry Harrison Hunter, who showcased silica sand at the 1893 Chicago World's Fair. Over the years, U.S. Silica has expanded its operations through acquisitions and the development of a diverse range of over 200 unique products. The company operates a comprehensive network of production plants and packaging facilities across the United States, facilitating reliable procurement of silica and other industrial minerals. A significant portion of its revenue is generated from its Oil and Gas Proppants segment, supporting hydraulic fracturing operations. U.S. Silica emphasizes collaboration with customers to innovate product applications while maintaining a commitment to health, safety, quality, and environmental integrity. In 2008, the company was acquired by Golden Gate Capital, a private equity firm based in San Francisco.