EXHIBIT 21 AMGEN INC. SUBSIDIARY STATE OF INCORPORATION (Name under which OR subsidiary does business) ORGANIZATION ------------------------- ---------------------- Amgen Australia Pty Limited Australia Amgen-Biofarmaceutica, Lda. Portugal Amgen Boulder Inc. Delaware Amgen B.V. The Netherlands Amgen Canada Inc. Canada Amgen Development Corporation Delaware Amgen (Europe) AG Switzerland Amgen GmbH Germany Amgen Greater China, Ltd. Hong Kong Amgen Holding, Inc. California Amgen International Inc. Delaware Amgen Kabushiki Kaisha Japan Amgen Limited United Kingdom Amgen Manufacturing, Inc. Delaware Amgen N.V. Belgium Amgen Sales Corporation Barbados Amgen S.A. France Amgen S.A. Spain Amgen S.p.A. Italy Kirin-Amgen, Inc. Delaware