Exhibit (21) State or Other Jurisdiction Under the Laws of Subsidiaries of Owens Corning Which Organized (12/31/95) Barbcorp, Inc. Delaware Crown Mfg. Inc. Canada Dansk-Svensk Glasfiber A/S Denmark Deutsche Owens-Corning Glasswool GmbH Germany Eric Company Delaware European Owens-Corning Fiberglas, S.A. Belgium Falcon Manufacturing Acquisition Corporation Delaware FALOC Holdings L.P. Delaware FALOC, Inc. Delaware Fiber-flex Co., Inc. New Jersey Fiberflex Incorporated Georgia Fiber-Lite Corporation Delaware IPM, Inc. Delaware Kitsons Insulation Products Ltd. United Kingdom Matcorp, Inc. Delaware N.V. Owens-Corning S.A. Belgium O/C/FIRST CORPORATION Ohio OCFOGO, Inc. Delaware O.C. Funding B.V. The Netherlands O/C/SECOND CORPORATION Delaware OC Utah Four Corporation Utah OCW Corporation (dba, Delsan) Delaware Owens-Corning A/S Norway Owens-Corning Building Products (U.K.) Ltd. United Kingdom Owens-Corning Canada Inc. Canada Owens-Corning Capital Holdings I, Inc. Delaware Owens-Corning Capital Holdings II, Inc. Delaware Owens-Corning Capital L.L.C. Delaware Owens-Corning Cayman Limited Cayman Islands Owens-Corning Changchun Guan Dao Company Ltd. PRC China Owens-Corning Fiberglas A.S. Limitada Brazil Owens-Corning Fiberglas Deutschland GmbH Germany Owens-Corning Fiberglas Espana, S.A. Spain Owens-Corning Fiberglas France S.A. France Owens-Corning Fiberglas (G.B.) Ltd. United Kingdom Owens-Corning Fiberglas (Italy) S.r.l. Italy Owens-Corning Fiberglas Norway A/S Norway Owens-Corning Fiberglas S.A. Uruguay Owens-Corning Fiberglas Sweden AB Sweden Owens-Corning Fiberglas Sweden Inc. Delaware Owens-Corning Fiberglas Technology Inc. Illinois Owens-Corning Fiberglas (U.K.) Ltd. United Kingdom Owens-Corning Finance (U.K.) plc United Kingdom Owens-Corning FSC, Inc. Barbados State or Other Jurisdiction Under the Laws of Subsidiaries of Owens Corning Which Organized (12/31/95) Owens-Corning Funding Corporation Delaware Owens-Corning (Guangzhou) Fiberglas Co., Ltd. PRC China Owens-Corning Holdings Limited Cayman Islands Owens-Corning Isolation France S.A. France Owens-Corning Ontario Holdings Inc. Canada Owens-Corning Overseas Holdings, Inc. Delaware Owens-Corning (Overseas) Management Limited Cyprus Owens-Corning Real Estate Corporation Ohio Owens-Corning Trading, Ltd. British Virgin Islands Owens-Corning UK Holdings Limited United Kingdom Owens-Corning Veil Netherlands B.V. The Netherlands Owens-Corning Veil U.K. Ltd. United Kingdom Owens-Corning Vertriebs GmbH Germany Palmetto Products, Inc. Delaware Scanglas Ltd. United Kingdom SFF Acquisition Corp. Tennessee SFF2 Acquisition Corp. Kentucky Soltech, Inc. Kentucky UC Industries, Inc. Delaware WD s.a. Belgium Western Fiberglass, Inc. Utah Western Fiberglass of Arizona Utah Western Fiberglass of Texas, Inc. Utah Willcorp, Inc. Delaware Wrexham A.R. Glass Ltd. United Kingdom Zola Castor Holding Corporation Delaware 1053051 Ontario Inc. Canada 1086269 Ontario Inc. Canada