. . . EXHIBIT 21 SUBSIDIARIES OF AMETEK, INC. STATE OR OTHER PERCENTAGE OF JURISDICTION OF VOTING NAME OF SUBSIDIARY AND NAME INCORPORATION OR SECURITIES OWNED UNDER WHICH IT DOES BUSINESS ORGANIZATION BY ITS IMMEDIATE PARENT* ---------------------------- ---------------- ------------------------ Advanced Measurement Technology, Inc............................ Delaware 100% AMELON, Inc. ................................................... Delaware 100% John Chatillon & Sons, Inc................................ New York 100% AMETEK (Bermuda), Ltd........................................... Bermuda 100% AMETEK (Canada), Ltd............................................ Canada 100% AMETEK (FSC), Inc............................................... U. S. Virgin Islands 100% AMETEK GmbH..................................................... Germany 100% AMETEK IMTSA, S.A. de C.V. ..................................... Mexico 100% AMETEK Lamb Motores de Mexico, S.A. de C.V...................... Mexico 100% AMETEK Mexicana, S.A. .......................................... Mexico 100% AMETEK Motors Holding, Inc...................................... Delaware 100% AMETEK Precision Instruments France, SARL....................... France 100% AMETEK Precision Instruments (UK) Ltd. ........................ England 100% AMETEK Receivables Corp......................................... Delaware 100% Chandler Instruments Company L.L.C. ............................ Texas 100% Petrolab L.L.C............................................ Delaware 100% Chandler Instruments GmbH................................. Austria 100% Grabner Instruments Messtechnik Gesellschaft m.b.h. .. Austria 100% Controls Holding Corporation.................................... Delaware 100% Patriot Sensors & Controls Corporation.................... Delaware 100% Nihon Drexelbrook Co., Ltd............................ Japan 100% EDAX Inc. ................................................ Delaware 100% EDAX Japan K.K. .......................................... Japan 100% EDAX B.V. ................................................ Netherlands 100% EDAX Ltd. ................................................ England 100% EMA Corp. ................................................ Delaware 100% AMEKAI (BVI), Ltd......................................... British Virgin Islands 50% AMETEK Do Brasil Ltda..................................... Brazil 99% AMETEK Motors Hong Kong Ltd............................... Hong Kong 100% AMETEK Holdings B.V. ..................................... Netherlands 100% AMETEK Denmark A/S.................................... Denmark 100% AMETEK Elektomotory CR S.R.O. ........................ Czech Republic 100% AMETEK (Italia) S.r.l. ............................... Italy 99.98% AMETEK Singapore Private Ltd.......................... Singapore 100% Amekai Singapore Private Ltd.................... Singapore 50% Amekai Meter (Xiamen) Co., Ltd.............. China 100% AmeKai Taiwan Co., Ltd.......................... Taiwan 50% AMETEK Motors Asia Private Ltd.................. Singapore 100% AMETEK Motors (Shanghai) Co., Ltd........... China 100% AMETEK Holdings (UK) Ltd.................................. England 100% Lloyd Instruments Ltd................................. England 100% Lloyd Instruments S.A........................... France 99.9% Neue Elektromotoren GmbH - Schleusingen................... Germany 100% WEBAK, B.V................................................ Netherlands 100% EMA Holdings UK Limited................................... England 100% Airtechnology Holdings Limited........................ England 100% Airtechnology Group Limited..................... England 100% Aircontrol Technologies Limited............. England 100% Airscrew Limited............................ England 100% Airtechnology Pension Trustees Ltd...... England 100% Thermol Control Company Ltd............. England 100% Clifford Edwards Limited................ England 100% NCC Holdings, Inc............................................... Delaware 100% AMETEK National Controls Corporation...................... Delaware 100% Prestolite Asia Ltd............................................. Korea 50% Rotron Incorporated............................................. New York 100% Seiko EG&G Co. Ltd.............................................. Japan 49% Solidstate Controls, Inc........................................ Delaware 100% HDR Power Systems, Inc.................................... Delaware 100% Solidstate Controls, Inc. de Argentina.................... Argentina 99.9% Solidstate Controls Mexico, S.A. de C.V................... Mexico 100% * Exclusive of directors' qualifying shares and shares held by nominees as required by the laws of the jurisdiction of incorporation.