Exhibit 21 TREDEGAR INDUSTRIES, INC. Virginia Jurisdiction Name of Subsidiary of Incorporation APPX Software, Inc. Virginia The William L. Bonnell Company, Inc. Georgia Brudi, Inc. Oregon Brudi Limited United Kingdom Brudi Pacific Pty Ltd Queensland Australia Capitol Products Corporation Pennsylvania Fiberlux, Inc. Virginia Idlewood Properties, Inc. Virginia Massie Tool, Mold & Die, Inc. Florida Molecumetics Institute, Ltd. Virginia Molecumetics, Ltd. Virginia Polestar Plastics Manufacturing Company Virginia Strauss 9 de Julio S.A. Argentina Tredegar Brazil Industria Brazil De Plasticos Ltda. Tredegar Development Corporation Virginia Tredegar Exploration, Inc. Virginia Tredegar Film Products Argentina S.A. Argentina Tredegar Film Products, B.V. Netherlands Tredegar Foreign Sales Corporation U.S. Virgin Islands Tredegar Investments, Inc. Virginia Tredegar Molded Products Company Virginia Virginia Techport, Inc. Virginia