Schering-Plough Corporation and Subsidiaries
Subsidiaries of the Registrant
As of December 31, 1999
Exhibit 21
State or Country
or Incorporation
Subsidiaries of Registrant or Organization
AESCA Chemisch Pharmazeutische Fabrik GmbH Austria
American Image Productions, Inc. Tennessee
American Scientific Laboratories, Inc. Delaware
Ark Products Limited United Kingdom
Avondale Chemical Co., Ltd. Ireland
Beneficiadora e Industrializadora S.A. de C.V. Mexico
Canji, Inc. Delaware
Chemibiotic (Ireland) Limited Ireland
Colombia Veterinary Holdings, Inc. Panama
Coopers Animal Health Limited United Kingdom
Coopers Brasil Ltda. Brazil
Dashtag United Kingdom
Desarrollos Farmaceuticos Y Cosmeticos S.A. Spain
DNAX Research Institute of Molecular & Cellular Biology, Inc. California
Douglas Industries, Inc. Delaware
Dr. Scholl's Foot Comfort Shops, Inc. Delaware
Essex (Taiwan) Ltd. Taiwan
Essex Chemie A.G. Switzerland
Essex Farmaceutica Portuguesa, Lda Portugal
Essex Farmaceutica S. A. Colombia
Essex Italia S.p.A. Italy
Essex Pharma GmbH Germany
Essex Pharmaceuticals, Inc. Philippines
Essexfarm S. A. Ecuador
Farmaceutica Essex, S. A. Spain
Garden Insurance Co., Ltd. Bermuda
Giralda Investments Ltd. Switzerland
Global Animal Management Inc. Delaware
Integrated Therapeutics Group, Inc. Delaware
Key Pharma Russia
Key Pharma S.A. Ecuador
Key Pharma S.A. Argentina
Key Pharma, A.G. Switzerland
Key Pharma, S.A. Spain
Key Pharmaceuticals Export Co., Inc. U.S. Virgin Islands
Key Pharmaceuticals, Inc. Florida
Kirby Medical Products Cia Ltda Chile
Kirby-Warrick Pharmaceuticals Limited United Kingdom
Laboratorio Essex, C.A. Venezuela
Laboratorio S.P. White's, C.A. Venezuela
Laboratorios Essex S.A. Argentina
Loftus Bryan Chemicals Limited Ireland
Macol, S.A. Colombia
Mallinckrodt Veterinary Limited Ireland
MedAdvisor, Inc. Delaware
Medexa, S.A. de C.V. Mexico
Med-Nim (Proprietary) Limited South Africa
P.T. Schering-Plough Indonesia Indonesia
Pharmaceutical Supply Corporation Delaware
Pharmaco(Canada) Inc. Canada
Pharmaco, Inc. Delaware
Pitman-Moore Animal Health Limited New Zealand
Plough (Australia) Pty. Limited Australia
Plough (UK) Limited United Kingdom
Plough Benelux S.A. Belgium
Plough Broadcasting Co., Inc. Delaware
Plough Consumer Products (Asia) Ltd. Hong Kong
Plough Consumer Products (Philippines) Inc. Philippines
Plough de Venezuela, C.A. Venezuela
Plough Export, Inc. Tennessee
Plough Farma, Lda. (Portugal) Portugal
Plough France S.A. France
Plough Hellas Limited Greece
Plough Laboratories, Inc. Tennessee
Plough S.p.A. Italy
Plough Services AG Switzerland
PPL, Inc. Tennessee
Pro Medica AB Sweden
Professional Pharmaceutical Corporation Delaware
Professional Vaccine Corporation Delaware
Scheramex S.A. de C.V. Mexico
Scherico, Ltd. Switzerland
Schering Canada Inc. Canada
Schering Corporation New Jersey
Schering Institutional Sales Corporation Delaware
Schering Laboratories Advertising Inc. Delaware
Schering MyHealth Solutions, Inc. Delaware
Schering Plough (South Korea) South Korea
Schering Sales Corporation Delaware
Schering Sales Management, Inc. Nevada
Schering Transamerica Corporation New Jersey
Schering-Plough (Bray) Limited Ireland
Schering-Plough (Proprietary) Limited South Africa
Schering-Plough A/S Norway
Schering-Plough A/S Denmark
Schering-Plough AB Sweden
Schering-Plough Animal Health Limited New Zealand
Schering-Plough Animal Health Limited Australia
Schering-Plough Animal Health Limited Hong Kong
Schering-Plough Animal Health Limited Thailand
Schering-Plough Animal Health Operations Sdn Bhd Malaysia
Schering-Plough Animal Health Sales Corporation Delaware
Schering-Plough Animal Health Sdn Bhd Malaysia
Schering-Plough Animal Health, Inc. Philippines
Schering-Plough Animal-Health Corporation Delaware
Schering-Plough Animal-Health Pte. Ltd. Singapore
Schering-Plough B.V. Netherlands
Schering-Plough C.A. Venezuela
Schering-Plough Central East A.G. Switzerland
Schering-Plough China, Ltd. Bermuda
Schering-Plough Compania Limitada Chile
Schering-Plough Coordination Center N.V./S.A. Belgium
Schering-Plough Corp., U.S.A. Delaware
Schering-Plough Corporation Philippines
Schering-Plough del Caribe, Inc. New Jersey
Schering-Plough del Ecuador, S.A. Ecuador
Schering-Plough del Peru S.A. Peru
Schering-Plough External Affairs, Inc. Delaware
Schering-Plough Farma Lda. Portugal
Schering-Plough Farmaceutica Ltda. Brazil
Schering-Plough Grenada Limited Grenada
Schering-Plough HealthCare Products Advertising Corp. Tennessee
Schering-Plough HealthCare Products Sales Corporation California
Schering-Plough HealthCare Products, Inc. Delaware
Schering-Plough Holdings France France
Schering-Plough Holdings Ltd. United Kingdom
Schering-Plough II - Veterinaria, Lda. Portugal
Schering-Plough INT Limited United Kingdom
Schering-Plough International Employees Inc. Delaware
Schering-Plough International, Inc. Delaware
Schering-Plough Investment Company, Inc. Delaware
Schering-Plough Investments Limited Delaware
Schering-Plough Kabushiki Kaisha Japan
Schering-Plough Labo N.V. Belgium
Schering-Plough Legislative Resources, L.L.C. Delaware
Schering-Plough Limited Iran
Schering-Plough Limited Taiwan
Schering-Plough Limited Thailand
Schering-Plough Limited United Kingdom
Schering-Plough Ltd. Switzerland
Schering-Plough N.V./S.A. Belgium
Schering-Plough Overseas Limited Delaware
Schering-Plough OY (Finland) Finland
Schering-Plough Pensions Ireland Limited Ireland
Schering-Plough Pharmaceutical Industrial and Commercial S.A. Greece
Schering-Plough Products Caribe, Inc. Puerto Rico
Schering-Plough Products LLC Puerto Rico
Schering-Plough Products, Inc. Delaware
Schering-Plough Pty. Limited Australia
Schering-Plough Real Estate Company, Inc. Delaware
Schering-Plough Real Property Holdings, Inc. Delaware
Schering-Plough Research Institute Delaware
Schering-Plough S.A. France
Schering-Plough S.A. Paraguay
Schering-Plough S.A. Panama
Schering-Plough S.A. Argentina
Schering-Plough S.A. Colombia
Schering-Plough S.A. Spain
Schering-Plough S.A. Uruguay
Schering-Plough S.A. de C.V. Mexico
Schering-Plough S.p.A. Italy
Schering-Plough Sante Animale France
Schering-Plough Sdn. Bhd. Malaysia
Schering-Plough Tibbi Urunler Ticaret, A.S. Turkey
Schering-Plough Veterinaire France
Schering-Plough Veterinaria, S.A. de C.V. Mexico
Schering-Plough Veterinary Belgium NV Belgium
Schering-Plough Veterinary Corporation Nevada
Schering-Plough Veterinary Ltd. Thailand
Schering-Plough Veterinary Nederland BV Netherlands
Schering-Plough Veterinary Operations, Inc. Delaware
Schering-Plough Veterinary S.A. Greece
Sentipharm A.G. Switzerland
Shanghai Schering-Plough Pharmaceutical Company, Ltd. China
SOL Limited Bermuda
SP Biotech, S.A. Spain
SP Flight Operations, Inc. Delaware
SP HealthCare Products Corp. Delaware
SP Neurotech, S.A. Spain
S-P RIL Limited (United Kingdom) United Kingdom
S-P Veterinary (UK) Limited United Kingdom
S-P Veterinary Holdings Limited United Kingdom
S-P Veterinary Limited United Kingdom
S-P Veterinary Pensions Limited United Kingdom
Suntan Sensations, Inc. California
Syntro Corporation Delaware
Syntro Zeon, LC Kansas
SyntroVenture Corporation Kansas
SyntroVet Incorporated Kansas
Tasman Vaccine Laboratory (UK) Limited United Kingdom
Technobiotic Ltd. Australia
The Coppertone Corporation Florida
Trading Pharma AG Switzerland
Undra S.A. de C.V. Mexico
UNICET, SAS France
Warrick Pharmaceuticals Corporation Delaware
Warrick Pharmaceuticals Limited (United Kingdom) United Kingdom
Werthenstein Chemie A.G. Switzerland
White Laboratories Ltd. United Kingdom
White Laboratories of Canada Ltd. Canada
White Laboratories, Inc. New Jersey