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). It operates in petroleum additives segment, which is primarily represented by Afton. The tetraethyl lead (TEL) business of Ethyl is reflected in the All other category. Each of its subsidiaries manages its own assets and liabilities. Afton encompasses the petroleum additives business, while Ethyl represents the sale of TEL in North America and certain petroleum additives manufacturing operations. NewMarket Development manages the property that the Company owns in Richmond, Virginia consisting of approximately 60 acres. NewMarket Services provides various administrative services to NewMarket, Afton, Ethyl and NewMarket Development. It has operations in the United States, Canada, Europe, India and Latin America, among others.