NewMarket Corporation (NewMarket) is a holding company. The Company has two segments: petroleum additives and real estate development. The subsidiaries of the Company include 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 that NewMarket owns in Richmond, Virginia. NewMarket Services provides various administrative services to NewMarket, Afton, Ethyl, and NewMarket Development. Afton is one of the lubricant and fuel additives companies worldwide. On March 5, 2010, Afton Chemical Corporation completed the acquisition of 100% of Polartech group of companies (Polartech).