NewMarket Corporation is a holding company. The Company is the 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 highly formulated lubricant and fuel additive packages and markets and sells these products worldwide. Ethyl provides contracted manufacturing and services to Afton and third parties and is a marketer of antiknock compounds in North America. The Company's petroleum additives are used in lubricating oils and fuels to enhance their performance in machinery, vehicles, and other equipment. The Company manufactures chemical components that are selected to perform one or more specific functions and combines those chemicals with other chemicals or components to form additive packages for use in specified end user applications.