EXHIBIT 21
List of Subsidiaries of Chiron Corporation

JURISDICTION OF
INCORPORATION OR
SUBSIDIARY ORGANIZATION
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Cetus Generic Corporation Delaware, USA
Chiron (formerly EuroCetus) Benelux B.V. Netherlands
Cephalon/Chiron Nederlands b.v. (Formerly EuroCetus Nederlands b.v.) Netherlands
Chiron GmbH (formerly EuroCetus GmbH) Germany
Chiron France S.A.R.L. (formerly EuroCetus France SARL) France
Chiron Italia S.r.l./ (formerly EuroCetus Italia S.r.l.) Italy
Chiron UK Ltd. (formerly EuroCetus U.K. Ltd.) United Kingdom
Chiron Iberia SA (formerly EuroCetus Iberia S.A.) Spain
Chiron Partners, Inc. California, USA
Chiron Alpha Corporation California, USA
Chiron/Cephalon JV Delaware, USA
Chiron Beta Corporation California, USA
Chiron Properties, Inc. California, USA
Chiron Delta Corporation Delaware, USA
Chiron Biocine Acquisition Corporation Delaware, USA
Chiron Biocine Corporation California, USA
Chiron Vaccines Company (formerly Chiron Biocine Company) Delaware, USA
Chiron (Bermuda) Ltd. Bermuda
Chiron Redevelopment Corp. & Co. K.G. (99% owned) Germany
31 Corsa Verwaltungsgesellschaft GmbH Germany
Chiron Behring GmbH (49% owned) Germany
Chiron Behring GmbH & Co. (49% limited partnership interest) Germany
Chiron Biocine B.V. (formerly JV Vax) Netherlands
Chiron S.p.A. (formerly Biocine, S.p.A.) Italy
Biocine S.A.R.L. France
Chiron Technologies Pty. Ltd. (formerly Chiron Mimotopes Pty. Ltd.) Australia
Chiron Mimotopes U.S. California, USA
Chiron Redevelopment Corporation Missouri, USA
Chiron Diagnostics S.A. (merged with Ciba Corning Diagnostics S.A.) France
Chiron Foreign Sales Corporation U.S. Virgin Islands
Chiron Funding LLC Delaware, USA
Chiron Viagene, Inc. Delaware, USA
Centaur Insurance Company, Inc. Hawaii, USA
Chiron Diagnostics Corporation (formerly Ciba Corning Diagnostics
Corporation) Delaware, USA
Chiron Healthcare Holdings Pty. Ltd (formerly Ciba Corning
Diagnostics Australia Pty. Ltd.) Australia
Chiron Healthcare Australia Pty. Ltd. (formerly Ciba Corning
Diagnostics Australia Pty. Limited) Australia
Chiron Healthcare Pty. Ltd. (formerly Australian Diagnostics
Corporation Pty. Ltd.) Australia
Chiron GmbH (formerly Ciba Corning Diagnostics GmbH) Austria
Chiron N.V./S.A. (formerly Ciba Corning Diagnostics, S.A./N.V.) Belgium
Chiron N.V. (formerly Ciba Corning Diagnostics Netherlands Ltd.) Netherlands
Chiron Inc. (formerly Ciba Corning Canada Inc.) Canada
Chiron Diagnostics Ltd. (formerly Ciba Corning Diagnostics Limited) United Kingdom
(Russia branch)

JURISDICTION OF
INCORPORATION OR
SUBSIDIARY ORGANIZATION
- ---------------------------------------------------------------------------------------------------------

Chiron Diagnostics S.A. (formerly Ciba Corning Diagnostics S.A.) France
Chiron Diagnostics GmbH (formerly Ciba Corning Diagnostics GmbH) Germany
Chiron Ltd. (formerly Ciba Corning Diagnostics (H.K.) Ltd. Hong Kong
Chiron Marketing Services Ltd. (formerly Ciba Corning Marketing
Services (H.K.) Ltd.) Hong Kong
(Singapore branch)
Chiron Diagnostics S.p.A. (formerly Ciba Corning Diagnostics S.p.A.) Italy
Chiron KK (formerly Ciba Corning Diagnostics K.K.) Japan
Chiron, S.A. de C.V. (formerly Ciba Corning Diagnostics de Mexico,
S.A. de C.V.) (49%) Mexico
Chiron Ltd. (formerly Ciba Corning Korea, Ltd.) Korea
Chiron Sp. z.o.o. (formerly Ciba Corning Diagnostics Sp.z.o.o.) Poland
Chiron Espana, S.A. (formerly Ciba Corning Diagnostics S.A.) Spain
Chiron Diagnostics A.G. (formerly Ciba Corning Diagnostics A.G.) Switzerland
Ciba Corning Diagnostics Foreign Sales Corporation U.S. Virgin Islands
Chiron Taiwan Co., Ltd. (formerly Ciba Corning Diagnostics Co., Ltd.) Taiwan
Chiron Diagnostics, Lda. (formerly Ciba Corning Diagnostics, Lda.) Portugal
Chiron Brasil Ltda. Brazil
Chiron Ltd. Thailand
Chiron Vision Corporation Delaware, USA
Adatomed Pharmazeutische und Medizintechnische GmbH Germany
IntraOptics GmbH Germany
Magnum Diamond Corporation South Dakota, USA
New Gluco, Inc. Delaware, USA
Chiron Vision Australia Pty. Ltd. Australia
Chiron Vision (UK) Ltd. United Kingdom
Chiron Vision Canada, Inc. Canada
Chiron Vision France, SA France
Laboratoires Domilens S.A. France
Chiron Vision Espana SA Spain
Domilens A.B. Sweden
Domilens, Inc. Delaware, USA
Iolab Corporation California, USA
Chiron Vision (Singapore) Pte., Ltd. Singapore
Chiron Vision Italia S.r.l. Italy
Hardlens Co., Inc. (50% owned) California, USA
Softlens Co., Inc. (50% owned) California, USA
Chiron Technolas Ophtalmologische Systeme GmbH (75% owned) Germany
1110237 Ontario Inc. Canada
Future Vision, Inc. California, USA
Steinway Instrument Company, Inc. California, USA