EXHIBIT 21 SUBSIDIARIES AND AFFILIATES OF THE REGISTRANT PERCENTAGE OF VOTING SECURITIES JURISDICTION OF OWNED DIRECTLY OR NAME INCORPORATION INDIRECTLY BY QUAKER ---- --------------- -------------------- *Quaker Chemical Europe B.V. Holland 100% *Quaker Chemical B.V. Holland 100% *Quaker Chemical, S.p.A. Italy 100% *Quaker Chemical Holdings UK United Kingdom 100% Limited *Quaker Chemical Limited United Kingdom 100% *Quaker Chemical S.A.R.L. France 100% *Raffineries de l'Ile de France France 100% **Quaker Chemical South Republic of South 50% Africa (Pty.) Limited Africa *Quaker Chemical, S.A. Spain 100% *Quaker Chemical, S.A. Argentina 100% *Quaker Chemical Industria e Brazil 100% Comercia Ltda. **Kelko Quaker Chemical, S.A. Venezuela 50% *Quaker Chemical Limited Hong Kong 100% *Quaker Chemical South East Singapore 100% Asia Pte. Ltd. **Nippon Quaker Chemical, Ltd. Japan 50% *Quaker Chemical (Austral- State of New South 51% asia) Pty. Limited Wales, Australia *QuakerChem Canada Limited Canada 100% **TecniQuimia Mexicana Mexico 40% S.A. de C.V. *Selby, Battersby & Co. Delaware, U.S.A. 100% *Quaker Chemical Corporation Delaware, U.S.A. 100% 19 *AC Products, Inc. California, U.S.A. 100% *Quaker Construction Products, Pennsylvania, U.S.A. 100% Inc. *QSC Products, Ltd. Pennsylvania, U.S.A. 100% *Multi-Chemical Products, California, U.S.A. 100% Inc. *Quaker Petroleum Chemicals Pennsylvania, U.S.A. 100% Company __________________ * Included in the consolidated financial statements. ** Accounted for in the consolidated financial statements under the equity method.