Exhibit 21 SUBSIDIARIES AND EQUITY ENTITIES OF THE COMPANY (As of December 31, 1993) State or country of Name organization Alcoa Brazil Holdings Company Delaware Alcoa Aluminio S.A. Brazil Alcoa Composites, Inc.* Delaware Alcoa Generating Corporation Indiana Alcoa International Holdings Company Delaware Alcoa Inter-America, Inc. Delaware Alcoa International Finance Company Delaware Alcoa International, S.A. Switzerland Alcoa Japan Limited Japan Alcoa-Kofem Kft. Hungary Alcoa Nederland Holding B.V. The Netherlands Alcoa Nederland B.V. The Netherlands Alcoa of Australia Limited Australia A.F.P. Pty. Limited Australia Hedges Gold Pty. Ltd. Australia Alcoa of Australia (Asia) Limited Hong Kong Alutodo, S.A. de C.V. Mexico Kobe Alcoa Transportation Products, Ltd. Japan Norsk Alcoa A/S Norway Alcoa Kasei Limited Japan Alcoa Manufacturing (G.B.) Limited England Alcoa Minerals of Jamaica, Inc. Delaware Alcoa Nederland Finance B.V. The Netherlands Alcoa Automotive Structures GmbH Germany Alcoa Chemie Nederland B.V. The Netherlands Alcoa Properties, Inc. Delaware Alcoa South Carolina, Inc. Delaware Jonathan's Landing, Inc. Delaware Alcoa Recycling Company, Inc. Delaware Alcoa Securities Corporation Delaware Alcoa Brite Products, Inc. Delaware Alcoa Chemie GmbH Germany Alcoa Deutschland GmbH Germany Alcoa Electronic Packaging, Inc. Delaware Alcoa Fujikura Ltd. Delaware Alcoa Kobe Transportation Products, Inc. Delaware Alcoa Packaging Machinery, Inc. Delaware Alcoa Steamship Company, Inc. New York B & C Research, Inc. Ohio Forges de Bologne S.A. France Lib-Ore Steamship Company, Inc. Liberia H-C Industries de Mexico, S.A. de C.V. Mexico Halco (Mining) Inc. Delaware Compagnie des Bauxites de Guinee Delaware Northwest Alloys, Inc. Delaware Pimalco, Inc. Arizona Three Rivers Insurance Company Vermont Tifton Aluminum Company, Inc. Delaware Capsulas Metalicas, S.A. Spain Gulf Closures W.L.L. Bahrain H-C Industries, Inc. Delaware Moralco Limited Japan Shibazaki Seisakusho Limited Japan The Stolle Corporation** Ohio Suriname Aluminum Company Delaware Tapoco, Inc. Tennessee Yadkin, Inc. North Carolina The names of certain subsidiaries and equity entities which, considered in the aggregate, would not constitute a significant subsidiary, have been omitted from the above list. * Registered to do business in Utah under the names of Fiber Technology and Fibertek. ** Registered to do business in Nevada under the name of Alcoa Building Products, Inc. Also registered to do business in California under the name of Stolle-Norcold Company.