EXHIBIT 21 List of Subsidiaries of Chiron Corporation JURISDICTION OF INCORPORATION OR SUBSIDIARY ORGANIZATION - ---------- ---------------- Cetus Generic Corporation Delaware, USA Chiron B.V. The Netherlands Cephalon Chiron B.V. The Netherlands Chiron GmbH Germany Chiron France S.a.r.l. France Chiron Italia S.r.l Italy Chiron U.K. Ltd. United Kingdom Chiron Iberia S.A. Spain Chiron Partners, Inc. California, USA Chiron Alpha Corporation California, USA Chiron/Cephalon JV Delaware, USA Chiron Properties, Inc. California, USA Chiron Delta Corporation Delaware, USA Chiron Investment Corporation California, USA Chiron (Bermuda) Ltd. Bermuda Chiron Redevelopment Corp. & Co. KG Germany 31 Corsa Verwaltungsgesellschaft GmbH Germany Chiron Behring GmbH & Co Germany Chiron Behring Verwaltungsgesellschaft GmbH Germany Chiron S.p.A. Italy Instituto Vaccinogen Pozzi S.p.A. Italy Biocine S.A.R.L. France Chiron Technologies Pty. Ltd. Australia Chiron Mimotopes U.S. California, USA Chiron Redevelopment Corporation Missouri, USA Chiron Foreign Sales Corporation U.S. Virgin Islands Chiron Funding LLC Delaware, USA Centaur Insurance Company, Inc. Hawaii, USA Chiron AB Sweden Chiron Vision, Inc. Canada