NewMarket Corporation is a holding company. The Company is a parent company of Afton Chemical Corporation (Afton), Ethyl Corporation (Ethyl), NewMarket Services Corporation (NewMarket Services), and NewMarket Development Corporation (NewMarket Development). The Company develops and manufactures formulated lubricant and fuel additive packages and markets and sells these products globally. The Company operates through the Petroleum Additives segment. The Petroleum Additives segment is used in lubricating oils and fuels to enable its performance in machinery, vehicles, and other equipment. The Company manufactures chemical components that are selected to perform one or more specific functions and combine those chemicals with other chemicals or components to form additive packages for use in specified end user applications. The petroleum additives market is a global marketplace, with customers ranging from large, integrated oil companies to national, regional, and independent companies.