NewMarket Corp is a holding company that, through its subsidiaries, manufactures and sells petroleum additives used in lubricating oils and fuels to enhance performance. The company operates through two segments: petroleum additives, mainly represented by Afton, where lubricant additives improve the efficiency and durability of base fluids and fuel additives help meet fuel specifications and improve fuel performance, and specialty materials, represented by AMPAC and Calca, including the antiknock compounds business of Ethyl, where primary raw materials include electricity, sodium chlorate, ammonia, chlorine, caustic, and hydrochloric acid, with graphite used in electrolytic cells. The company has operations in North America, Latin America, Asia Pacific, and EMEAI regions.