1 Exhibit 21 Subsidiaries of Intermet NAME OF SUBSIDIARY INCORPORATION OR PLACE OF ORGANIZATION Alexander City Casting Company, Inc. Alabama Cast-Matic Corporation Michigan Columbus Foundry, L.P. Delaware Columbus Neunkirchen Foundry, GmbH Germany Frisby P.M.C., Incorporated Illinois Intermet International, Inc. Georgia Iowa Mold Tooling Co., Inc. Iowa Ironton Iron, Inc. Ohio Lower Basin, Inc. Delaware Lynchburg Foundry Company Virginia Northern Castings Corporation Georgia Sudbury, Inc. Delaware SUDM, Inc. Michigan Tool Products, Inc. Delaware Transnational Indemnity Company Vermont Vorpommersche Eisenwerke GmbH Germany UeckermUnde Wagner Castings Company Delaware Wagner Havana, Inc. Delaware Intermet wholly owns the above subsidiaries directly or indirectly, unless otherwise indicated.