EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT TRW has no parent or parents. As of December 31, 1999, certain of its subsidiaries, some of which also have subsidiaries, were as follows: Percentage of Organized under voting securities Name the laws of owned (1) ---- ----------- ----------------- BDM International, Inc. which owns Delaware 100.00% Vinnell Corporation Delaware 100.00% TRW Automotive Espana, S.A. Spain 100.00% TRW Automotive Holding Company Delaware 100.00% TRW Automotive Products Inc. which owns, Delaware 100.00% directly or indirectly, TRW Delaware Inc. Delaware 100.00% TRW Automotive Safety Systems Inc. Delaware 100.00% TRW UK Holding Limited United Kingdom 100.00% TRW Automotive UK Limited United Kingdom 100.00% LucasVarity Limited United Kingdom 100.00% Lucas Industries Limited United Kingdom 100.00% Lucas Automation & Control Engineering Inc. Virginia 100.00% Lucas-TVS Limited India 52.50% Lucas Investments Ltd. United Kingdom 100.00% Lucas France S.A.S. France 100.00% Lucas Limited United Kingdom 100.00% Lucas Systemes de Freinage S.A.S. France 100.00% Societe d'Application des Machine Motrices S.A.S. France 100.00% TRW Deutschland Holding GmbH Germany 100.00% Lucas Deutschland GmbH Germany 100.00% Lucas Automotive GmbH Germany 100.00% TRW Automotive Safety Systems Holding GmbH Germany 100.00% TRW Airbag Systems GmbH & Co. KG Germany 99.99% TRW Automotive Safety Systems GmbH & Co. KG Germany 100.00% TRW Deutschland GmbH Germany 100.00% TRW Automotive Electronics & Components GmbH & Co. KG Germany 100.00% TRW Fahrwerksysteme GmbH & Co. KG Germany 100.00% TRW Occupant Restraints Systems GmbH & Co. KG Germany 100.00% TRW Automotive Systems Limited United Kingdom 100.00% TRW LucasVarity Electric Steering Limited United Kindgom 100.00% TRW Steering Systems Limited United Kingdom 100.00% LucasVarity Inc. Delaware 100.00% NEWCO Investment Co. Michigan 100.00% Varity Automotive Inc. Delaware 100.00% Kelsey-Hayes Company Delaware 100.00% Kelsey-Hayes Canada Limited Canada 100.00% VarityKelsey-Hayes Comercial Ltda. Brazil 100.00% Freios Varga S.A. Brazil 99.00% Lucas Western Inc. Delaware 100.00% Percentage of Organized under voting securities Name the laws of owned (1) ---- ----------- ----------------- TRW Canada Limited, which owns Canada 100.00% Quality Safety Systems Company Canada 60.00% TRW Automotive Brasil Ltda. Brazil 100.00% TRW Export Sales B.V. which, in turn, owns Netherlands 100.00% TRW Netherlands Finance B.V. Netherlands 100.00% TRW Netherlands Finance International B.V. Netherlands 100.00% TRW Netherlands Holding B.V. Netherlands 100.00% TRW France S.A. France 100.00% TRW Italia S.p.A. Italy 100.00% TRW Koyo Steering Systems Company Tennessee 51.00% TRW Microwave Inc. California 100.00% TRW Netherlands B.V. Netherlands 100.00% TRW Overseas Finance N.V. Netherlands 100.00% TRW Sabelt S.p.A. which owns Italy 90.00% TRW Air Bag Systems s.r.l. Italy 100.00% TRW Steering Systems Japan Co. Ltd. Japan 100.00% TRW Vehicle Safety Systems Inc., which owns Delaware 100.00% TRW Safety Systems Inc. Delaware 100.00% TRW Technar Inc. California 100.00% _______________ (1) Total percentages held by TRW and/or its subsidiaries, disregarding Directors' qualifying shares, if any. The names of certain subsidiaries, which considered in the aggregate would not constitute a "significant subsidiary" as such term is defined in the regulations under the federal securities laws, have been omitted from the foregoing list.