NewMarket Corporation (NewMarket) is a holding company which is the parent company of Afton Chemical Corporation (Afton), Ethyl Corporation (Ethyl), NewMarket Services Corporation (NewMarket Services), and NewMarket Development Corporation (NewMarket Development). Afton encompasses the petroleum additives business, while Ethyl represents the sale and distribution of tetraethyl lead (TEL) in North America and certain petroleum additives manufacturing operations. NewMarket Development manages the property and improvements that it owns in Richmond, Virginia. NewMarket Services provides various administrative services to NewMarket, Afton, Ethyl, and NewMarket Development. The Company operates in two business segments: petroleum additives and real estate development. The petroleum additives segment is primarily represented by Afton.