EXHIBIT 21 Subsidiaries of the Registrant The table below indicates each of the Registrant's subsidiaries, each subsidiary's jurisdiction of incorporation, and the percentage of its voting securities owned by the Registrant or its subsidiaries. State or country of Percentage incorporation of voting Subsidiaries or organization securities Owned by Industrial Airsystems, Inc. Minnesota 100% Registrant Manufacturera Mexicana de Partes de Automoviles, S.A. ("Mexpar") Mexico 100% Registrant<F1> Modine, Inc. Delaware 100% Registrant Modine Acquisition Corp. Delaware 100% Registrant Modine Aftermarket Holdings, Inc. North Carolina 100% Registrant Modine Asia K.K. Japan 100% Registrant Modine Austria Ges.m.b.H Austria 100% Registrant Modine do Brasil Ltda. Brazil 99% Modine, Inc.<F2> Modine of Canada, Ltd. Canada 100% Registrant Modine Climate Systems, Inc.<F3> Kentucky 100% Registrant Modine Export Sales Corp. Barbados 100% Registrant Modine Foundation, Inc. Wisconsin 100% Registrant Modine Manufacturing Company Foundation, Inc. Wisconsin 100% Registrant Modine of Puerto Rico, Inc. Delaware 100% Registrant Radman, Inc. Michigan 100% Registrant TRT Heating Products, Inc. <F4> Rhode Island 100% Registrant Modine Holding GmbH Germany 100% Modine, Inc. Modine Transferencia de Calor, S.A. de C.V. Mexico 99.6% Modine, Inc. <F2> NRF B.V. The Netherlands 100% Modine, Inc. Modine Climate Systems GmbH Germany 100% Modine Climate Systems Inc. Modine Automobiltechnik GmbH Germany 100% Modine Holding GmbH Modine Bernhausen GmbH Germany 100% Modine Holding GmbH Modine Europe GmbH Germany 100% Modine Holding GmbH Modine Grundstucksverwaltungs GmbH Germany 100% Modine Holding GmbH Modine Hungaria Kft. Hungary 100% Modine Holding GmbH Modine Kirchentellinsfurt GmbH Germany 100% Modine Holding GmbH Modine Montage GmbH Germany 100% Modine Holding GmbH Modine Neuenkirchen GmbH Germany 100% Modine Holding GmbH Modine Pontevico S.r.l. Italy 100% Modine Holding GmbH - -------------------------------- <F1> One share of Mexpar is held by Modine, Inc. <F2> Balance of voting securities held by the Registrant. <F3> Formerly known as Signet Systems, Inc. <F4> Merged into Modine Manufacturing Company on April 1, 2000 EXHIBIT 21 continued State or country of Percentage incorporation of voting Subsidiaries or organization securities Owned by Modine Tubingen GmbH Germany 100% Modine Holding GmbH Modine Uden B.V. The Netherlands 100% Modine Holding GmbH NRF B.V.B.A. Belgium 100% NRF B.V. NRF Deutschland GmbH Germany 100% NRF B.V. NRF Espania S.A. Spain 100% NRF B.V. NRF France SARL France 100% NRF B.V. NRF Handelgesellschaft mbH Austria 100% NRF B.V NRF Italia SRL Italy 100% NRF B.V. NRF Poland Spolka Z.O.O. Poland 100% NRF B.V. NRF Services AS Denmark 100% NRF B.V. NRF Switzerland AG Switzerland 100% NRF B.V. NRF UK Ltd. United Kingdom 100% NRF B.V.