Exhibit 21.1 Subsidiaries of the Registrant Neenah Foundry Company Advanced Cast Products, Inc. - wholly owned. Belcher Corporation. Peerless Corporation. Cast Alloys, Inc. - wholly owned. International Golf, S.A. de, C.V. Dalton Corporation - wholly owned. Dalton Corporation, Warsaw Manufacturing Facility. Dalton Corporation, Ashland Manufacturing Facility. Dalton Corporation, Kendallville Manufacturing Facility. Dalton Corporation, Stryker Manufacturing Facility. Deeter Foundry, Inc. - wholly owned. Gregg Industries, Inc. - wholly owned Mercer Forge Corporation - wholly owned. A&M Specialties, Inc. Neenah Transport, Inc. - wholly owned. 72