EXHIBIT 21 SUBSIDIARIES OF MILLIPORE CORPORATION Pursuant to Item 601, Paragraph 21, clause (ii) of Regulation S-K, the following list excludes subsidiaries who conduct no business operations or which have no significant assets. COMPANY NAME JURISDICTION OF ORGANIZATION - ------------ ---------------------------- Millipore Asia Ltd. Delaware Millipore Korea Ltd. Korea Millipore Singapore, Pte. Ltd. Singapore Millipore Cidra, Inc. Delaware Millipore Intertech, (V.I.), Inc. U.S. Virgin Is. Millipore (Canada) Ltd. Canada Millipore S.A. de C.V. Mexico Millipore GesmbH Austria Millipore Kft Hungary Millipore S.R.O. Czech Republic Millipore Investment Holdings Ltd. Delaware Millipore International Holding Company B.V. Netherlands BCL Acquisition Corp. Delaware BioProcessing Limited Corporation United Kingdom Millipore Japan Company L.L.C. Delaware Nihon Millipore Limited Japan Millipore S.A./N.V. Belgium Millipore (U.K.) Ltd. United Kingdom Millipore S.A. France Millipore Ireland B.V. Netherlands Millipore Dublin International Finance Company Ireland Millipore GmbH West Germany Millipore S.p.A. Italy Millipore A.B. Sweden Millipore AS Norway Millipore A.G. Switzerland Millipore A/S Denmark Millipore Australia Pty. Ltd. Australia Millipore Iberica S.A. Spain Millipore I.E.C., Ltda. Brazil Millipore OY Finland Millipore B.V. The Netherlands Millipore China Ltd. Hong Kong Millipore Pacific Limited Delaware Millipore (Suzhou) Filter Company Limited Peoples Republic of China Millicorp, Inc. Delaware Minerva Insurance Co. Ltd. Bermuda Vermeer Ireland