EX-21 7 ex21-subsidiarylistasof12x.htm EX-21 SUBSIDIARY LIST
Exhibit 21
MERCK & CO., INC. SUBSIDIARIES
as of 12/31/2020
The following is a list of subsidiaries of the Company, doing business under the name stated.

Name | Country or State of Incorporation
7728026 Canada Inc. | Canada
Abmaxis Inc. | Delaware
Afferent Pharmaceuticals, Inc. | Delaware
Agrident GmbH | Germany
Agro Verhen B.V. | Netherlands
Aleis Pty Ltd | Australia
Allflex Argentina S.A. | Argentina
Allflex Australia Pty. Ltd. | Australia
Allflex Avrasya Hayvan Kimlik Sistemleri Sanayi Ve Ticaret Limited Sirketi | Turkey
Allflex dan-mark ApS | Denmark
Allflex Europe S.A.S. | France
Allflex Group Germany GmbH | Germany
Allflex India Private Limited | India
Allflex International do Brasil Ltda | Brazil
Allflex Maroc S.A.R.L. | Morocco
Allflex New Zealand Limited | New Zealand
Allflex Polska Spolka z ograniczona odpowiedzialnoscia | Poland
Allflex SCR Vostok | Belarus
Allflex Services S.A.R.L. | France
Allflex UK Group Limited | United Kingdom
Allflex USA, Inc. | Delaware
Alta Plastic Muhendislik Sanayi Ve Ticaret Limited Sirketi | Turkey
Animal ID Australia Pty Ltd | Australia
Antelliq Corporation | Delaware
Antelliq Finance, Inc. | Delaware
Antelliq Holdings France S.A.S | France
Antelliq Holdings, Inc. | Delaware
Antelliq Management, Inc. | Delaware
Antimicrobial Stewardship LLC | Delaware
ArQule, Inc. | Delaware
AVL Holdings Limited | United Kingdom

1

Beijing Allflex Plastic Products Co. Ltd | China
Beijing Protection Science and Technology Co., Ltd. | People’s Republic of China
Biomark, Inc. | Idaho
BRC Ltd. | Bermuda
Burgwedel Biotech GmbH | Germany
Calporta Therapeutics, Inc. | Delaware
Cambridge Resonant Technologies Ltd | United Kingdom
Canji, Inc. | Delaware
cCam Biotherapeutics Ltd. | Israel
Cherokee Pharmaceuticals LLC | Delaware
Chevillot S.A.S. | France
Continuum Professional Services Limited | United Kingdom
Controladora MSD Mexicana Sociedad de Responsabilidad Limitada de Capital Variable | Mexico
Cooper Veterinary Products (Proprietary) Limited | South Africa
Corporation Allflex, Inc. | Canada
Cosmas B.V. | Netherlands
Cubist (UK) Ltd | United Kingdom
Cubist Pharmaceuticals (UK) Ltd. | United Kingdom
Cubist Pharmaceuticals LLC | Delaware
Dashtag | United Kingdom
Desarrollos Farmaceuticos Y Cosmeticos, S.A. | Spain
Destron Fearing Corporation | Delaware
Dialstat Trading 91 Pty Ltd T/A Allflex SA | South Africa
Dieckmann Arzneimittel GmbH | Germany
Digital Angel S.A. | Digital Angel S.A.
Diosynth France S.A.S. | France
Diosynth Holding B.V. | Netherlands
Diosynth Produtos Farmo-quimicos Ltda. | Brazil
Drovers ID Pty Ltd | Australia
DSD Holding A/S | Denmark
Elastec S.R.L | Argentina
Essex Pharmaceuticals, Inc. | Philippines
Essexfarm, S.A. | Ecuador
Farmacox - Companhia Farmaceutica, Lda | Portugal
Farmasix-Produtos Farmaceuticos, Lda | Portugal
Financiere MSD | France
Fontelabor-Produtos Farmaceuticos, Lda. | Portugal

2

Frosst Laboratories, Inc. | Delaware
Frosst Portuguesa - Produtos Farmaceuticos, Lda. | Portugal
Fulford (India) Limited 1 | India
GlycoFi, Inc. | Delaware
GT Acquisition Sub, Inc. | Minnesota
GTS FI B.V. | Netherlands
Hangzhou MSD Pharmaceutical Co., Ltd. 1 | China
Harrisvaccines, Inc. | Iowa
Hawk and Falcon L.L.C. | Delaware
Healthcare Services and Solutions, LLC | Delaware
Heptafarma Companhia Farmaceutica, Lda | Portugal
Hydrochemie GmbH | Germany
Idenix GmbH | Switzerland
Idenix SARL | France
IdentiGEN Canada Ltd. | Canada
IdentiGEN Czech s.r.o. | Czech Republic
IdentiGEN Deutschland GmbH | Germany
IdentiGEN Limited | Ireland
IdentiGEN North America Inc. | Delaware
IdentiGEN Switzerland AG | Switzerland
Immune Design B.V. | Netherlands
Immune Design Corp. | Delaware
Insight Acquisition Holdings Limited | Ireland
International Indemnity Ltd. | Bermuda
Intervet (Ireland) Limited | Ireland
Intervet (Israel) Ltd. | Israel
Intervet (M) Sdn. Bhd. | Malaysia
Intervet (Proprietary) Limited | South Africa
Intervet (Thailand) Ltd. | Thailand
Intervet AB | Sweden
Intervet Agencies B.V. | Netherlands
Intervet Animal Health Taiwan Limited | Republic of China
Intervet Argentina S.A. | Argentina
Intervet Australia Pty Limited | Australia
Intervet Canada Corp. | Canada
Intervet Central America S. de R.L. | Panama
Intervet Deutschland GmbH | Germany
Intervet Ecuador S.A. | Ecuador

3

Intervet Egypt for Animal Health SAE | Egypt
Intervet GesmbH | Austria
Intervet Hellas A.E. | Greece
Intervet Holding B.V. | Netherlands
Intervet Holdings France SAS | France
Intervet Hungaria Értékesítő Kft | Hungary
Intervet Inc. | Delaware
Intervet India Pvt Limited | India
Intervet International B.V. | Netherlands
Intervet International GmbH | Germany
Intervet International Sarl | France
Intervet LLC | Russian Federation
Intervet Maroc S.A. | Morocco
Intervet Mexico S.A. de C.V. | Mexico
Intervet Middle East Limited | Cyprus
Intervet Nederland B.V. | Netherlands
Intervet Philippines, Inc. | Philippines
Intervet Productions S.A. | France
Intervet Productions S.r.l. | Italy
Intervet Romania SRL | Romania
Intervet S.A. | Peru
Intervet SAS | France
Intervet Schering-Plough Animal Health Pty. Ltd. | Australia
Intervet South Africa (Proprietary) Limited | South Africa
Intervet Sp. z.o.o. | Poland
Intervet UK Production Limited | United Kingdom
Intervet Venezolana S.A. | Venezuela
Intervet Veterinaria Chile Ltda | Chile
Intervet Veteriner Ilaclari Pazarlama ve Ticaret Ltd. Sirketi | Turkey
Intervet, s.r.o. | Czech Republic
Interveterinaria SA de CV | Mexico
IOmet Pharma Limited | United Kingdom
Laboratoires Merck Sharp & Dohme-Chibret | France
Laboratorios Abello, S.A. | Spain
Laboratorios Chibret, S.A. | Spain
Laboratorios Frosst, S.A. | Spain
Laboratorios Quimico-Farmaceuticos Chibret, Lda | Portugal
Lemifar S. A. | Uruguay

4

Maple Leaf Holdings GmbH | Switzerland
Maya Tibbi Urunler Ticaret Limited Sirketi | Turkey
MCM Vaccine B.V. 1 | Netherlands
Med-Nim (Proprietary) Limited | South Africa
Merck and Company, Incorporated | Delaware
Merck Canada Inc. | Canada
Merck Capital Ventures, LLC 1 | Delaware
Merck Frosst Canada & Co. | Canada
Merck Frosst Company | Canada
Merck Global Health Innovation Fund, LLC | Delaware
Merck Global Health Innovation, Private Equity, LLC | Delaware
Merck HDAC Research, LLC | Delaware
Merck Holdings II Corp. | Delaware
Merck Holdings III Corp. | Delaware
Merck Holdings IV Corp. | Delaware
Merck Holdings LLC | Delaware
Merck International Holdings Corp. | Delaware
Merck Lumira Biosciences Fund L.P. 1 | Canada
Merck Registry Holdings, Inc. | New Jersey
Merck Research Investments LLC | Delaware
Merck Research Laboratories Massachusetts, LLC | Delaware
Merck Sharp & Dohme (Argentina) LLC | Delaware
Merck Sharp & Dohme (Asia) Limited | Hong Kong
Merck Sharp & Dohme (Australia) Pty. Limited | Australia
Merck Sharp & Dohme (Chile) Ltda. | Chile
Merck Sharp & Dohme (China) Limited | Hong Kong
Merck Sharp & Dohme (Enterprises) B.V. | Netherlands
Merck Sharp & Dohme (Europe) Inc. | Delaware
Merck Sharp & Dohme (Holdings) Pty Ltd | Australia
Merck Sharp & Dohme (I.A.) LLC | Delaware
Merck Sharp & Dohme (International) Limited | Bermuda
Merck Sharp & Dohme (Israel - 1996) Company Ltd. | Israel
Merck Sharp & Dohme (Malaysia) SDN. BHD. | Malaysia
Merck Sharp & Dohme (New Zealand) Limited | New Zealand
Merck Sharp & Dohme (Sweden) A.B. | Sweden
Merck Sharp & Dohme (Switzerland) GmbH | Switzerland
Merck Sharp & Dohme (UK) Limited | United Kingdom
Merck Sharp & Dohme Animal Health, S.L. | Spain

5

Merck Sharp & Dohme Asia Pacific Services Pte. Ltd. | Singapore
Merck Sharp & Dohme B.V. | Netherlands
Merck Sharp & Dohme BH d.o.o. | Bosnia
Merck Sharp & Dohme Bulgaria EOOD | Bulgaria
Merck Sharp & Dohme Colombia S.A.S. | Colombia
Merck Sharp & Dohme Comercializadora, S. de R.L. de C.V. | Mexico
Merck Sharp & Dohme Corp. | New Jersey
Merck Sharp & Dohme Cyprus Limited | Cyprus
Merck Sharp & Dohme d.o.o. | Croatia
Merck Sharp & Dohme d.o.o. Belgrade | Serbia
Merck Sharp & Dohme de Espana SAU | Spain
Merck Sharp & Dohme Farmaceutica Ltda. | Brazil
Merck Sharp & Dohme Finance Europe Limited | United Kingdom
Merck Sharp & Dohme Gesellschaft m.b.H. | Austria
Merck Sharp & Dohme IDEA GmbH | Switzerland
Merck Sharp & Dohme inovativna zdravila d.o.o. | Slovenia
Merck Sharp & Dohme International Services B.V. | Netherlands
Merck Sharp & Dohme Latvija | Latvia
Merck Sharp & Dohme Limitada | Bolivia
Merck Sharp & Dohme LLC | New Jersey
Merck Sharp & Dohme Manufacturing Unlimited Company | Ireland
Merck Sharp & Dohme OU | Estonia
Merck Sharp & Dohme Peru SRL | Peru
Merck Sharp & Dohme Pharmaceutical Industrial and Commercial Societe Anonyme | Greece
Merck Sharp & Dohme Research GmbH | Switzerland
Merck Sharp & Dohme Romania SRL | Romania
Merck Sharp & Dohme S.A. | Morocco
Merck Sharp & Dohme s.r.o. | Czech Republic
Merck Sharp & Dohme Salud Animal Columbia S.A.S. | Colombia
Merck Sharp & Dohme Saude Animal Ltda. | Brazil
Merck Sharp & Dohme Singapore Trading Pte. Ltd. | Singapore
Merck Sharp & Dohme Tunisie SARL | Tunisia
Merck Sharp & Dohme, Limitada | Portugal
Merck Sharp & Dohme, S. de R.L. de C.V. | Mexico
Merck Sharp & Dohme, s.r.o. | Slovakia
Merck Sharp Dohme Ilaclari Limited Sirketi | Turkey
Merck Teknika LLC | Delaware
Merko Acquisition S.A. | Belgium

6

Merko B.V. | Netherlands
Merko Dalton B.V. | Netherlands
Merko N.V. | Belgium
ML Holdings (Canada) Inc. | Canada
MRL San Francisco, LLC | Delaware
MRL Ventures Fund LLC | Delaware
MSD (I.A.) B.V. | Netherlands
MSD (L-SP) Unterstützungskasse GmbH | Germany
MSD (Ningbo) Animal Health Technology Co., Ltd. | China
MSD (Nippon Holdings) B.V. | Netherlands
MSD (Norge) AS | Norway
MSD (Proprietary) Limited | South Africa
MSD (Shanghai) Pharmaceuticals Consultancy Co., Ltd. | China
MSD (Thailand) Ltd. | Thailand
MSD AH Limited | United Kingdom
MSD Animal Health (Phils.), Inc | Philippines
MSD Animal Health (Shanghai) Trading Co., Ltd. | China
MSD Animal Health A/S | Denmark
MSD Animal Health B.V. | Belgium
MSD Animal Health Danube Biotech GmbH | Austria
MSD Animal Health FZ-LLC | United Arab Emirates
MSD Animal Health GmbH | Switzerland
MSD Animal Health Innovation AS | Norway
MSD Animal Health Innovation GmbH | Germany
MSD Animal Health Innovation Pte. Ltd. | Singapore
MSD Animal Health Innovation SAS | France
MSD Animal Health K.K. | Japan
MSD Animal Health Korea Ltd. | Korea, Republic of
MSD Animal Health Norge AS | Norway
MSD Animal Health Oy | Finland
MSD Animal Health Pension Trustee Limited | United Kingdom
MSD Animal Health S.r.l. | Italy
MSD Animal Health UK Ltd. | United Kingdom
MSD Animal Health Vietnam Co. Limited | Viet Nam
MSD Animal Health, Lda. | Portugal
MSD Argentina Holdings B.V. | Netherlands
MSD Argentina SRL | Argentina
MSD Asia Holdings Pte. Ltd. | Singapore

7

MSD Belgium BV - SRL | Belgium
MSD Biotech B.V. | Netherlands
MSD Brazil Investments B.V. | Netherlands
MSD Central America Services S. de R.L. | Panama
MSD China (Investments) B.V. | Netherlands
MSD China B.V. | Netherlands
MSD China Holding Co., Ltd. | China
MSD Cubist Holdings Unlimited Company | Ireland
MSD Czech Republic s.r.o. | Czech Republic
MSD Danmark ApS | Denmark
MSD Egypt LLC | Egypt
MSD EIC Unlimited Company | Ireland
MSD Eurofinance | Bermuda
MSD Farmaceutica C.A. | Venezuela
MSD FI BV | Netherlands
MSD Finance 2 LLC | Delaware
MSD Finance B.V. | Netherlands
MSD Finance Company | Bermuda
MSD Finance Holdings Unlimited Company | Ireland
MSD Finland Oy | Finland
MSD France | France
MSD Global Research GmbH | Switzerland
MSD HH Vietnam Ltd | Vietnam
MSD Holdings (Ireland) Unlimited Company | Ireland
MSD Holdings 2 G.K. | Japan
MSD Holdings G.K. | Japan
MSD Human Health Holding B.V. | Netherlands
MSD Human Health Holding II B.V. | Netherlands
MSD IDEA Pharmaceuticals Nigeria Limited | Nigeria
MSD IDEA Tunisie SARL | Tunisia
MSD Idenix Holdings Unlimited Company | Ireland
MSD Innovation & Development GmbH | Switzerland
MSD International Business GmbH | Switzerland
MSD International Finance B.V. | Netherlands
MSD International Finance LLC | Delaware
MSD International GmbH | Switzerland
MSD International Holdings 2 B.V. | Netherlands
MSD International Investment Holdings Unlimited Company | Ireland

8

MSD International Manufacturing GmbH | Switzerland
MSD Investment Holdings (Ireland) Unlimited Company | Ireland
MSD Investments (Holdings) GmbH | Switzerland
MSD Italia s.r.l. | Italy
MSD Japan Holdings B.V. | Netherlands
MSD Japan Holdings GK | Japan
MSD K.K. | Japan
MSD Korea Co., Ltd. | Korea
MSD Laboratories India LLC | Delaware
MSD Latin America Services S. de R.L. | Panama
MSD Latin America Services S. de R.L. de C.V. | Mexico
MSD Limited | United Kingdom
MSD Luxembourg S.a.r.l. | Luxembourg
MSD Merck Sharp & Dohme AG | Switzerland
MSD NL 4 B.V. | Netherlands
MSD Overseas Manufacturing Co (Ireland) Unlimited Company | Ireland
MSD Panama International Services S. de R.L. | Panama
MSD Participations B.V. | Netherlands
MSD Pharma (Singapore) Pte. Ltd. | Singapore
MSD Pharma GmbH | Germany
MSD Pharma Hungary Korlatolt Felelossegu Tarsasag | Hungary
MSD Pharmaceuticals Holdings Unlimited Company | Ireland
MSD Pharmaceuticals Investments 1 Unlimited Company | Ireland
MSD Pharmaceuticals Investments 3 Unlimited Company | Ireland
MSD Pharmaceuticals Ireland Unlimited Company | Ireland
MSD Pharmaceuticals LLC | Russian Federation
MSD Pharmaceuticals Private Limited | India
MSD Polska Dystrybucja Sp. z.o.o. | Poland
MSD Polska Sp.z.o.o. | Poland
MSD R&D (China) Co., Ltd. | China
MSD R&D Innovation Centre Limited | United Kingdom
MSD RDC Costa Rica Sociedad de Responsabilidad Limitada | Cost Rica
MSD Regional Business Support Center GmbH | Germany
MSD Registry Holdings, Inc. | New Jersey
MSD Shared Business Services EMEA Limited | Ireland
MSD Sharp & Dohme Gesellschaft mit beschränkter Haftung | Germany
MSD Switzerland Investments 1 Unlimited Company | Ireland
MSD Switzerland Investments 4 Unlimited Company | Ireland

9

MSD Switzerland Investments 5 Unlimited Company | Ireland
MSD Ukraine Limited Liability Company | Ukraine
MSD Unterstutzungskasse GmbH | Germany
MSD Vaccines Limited | United Kingdom
MSD Vaccins | France
MSD Vaccins Holdings | France
MSD Venezuela Holding GmbH | Switzerland
MSD Ventures (Ireland) Unlimited Company | Ireland
MSD Verwaltungs GmbH | Germany
MSD Vietnam Company Limited | Vietnam
MSD Vietnam Holdings B.V. | Netherlands
MSD Vostok B.V. | Netherlands
MSDIG Holdings Limited | Ireland
MSDRG Holdings Unlimited Company | Switzerland
MSDRG LLC | Delaware
MSP Singapore - Sub, LLC | Delaware
MSP Singapore Company, LLC | Delaware
MSP Vaccine Company 1 | Pennsylvania
Multilan AG | Switzerland
N.V. Organon | Netherlands
Nihon MSD G.K. | Japan
Nourifarma - Produtos Quimicos e Farmaceuticos, Sociedade Uniperssoal, Lda | Portugal
O.PI.VI S.R.L. | Italy
OBS Holdings B.V. | Netherlands
OBS Human Health Holding B.V. | Netherlands
OBS International 9 B.V. | Netherlands
OBS Mexico Holdings B.V. | Netherlands
Oncoethix GmbH | Switzerland
OncoImmune, Inc. | Delaware
Optimer Pharmaceuticals LLC | Delaware
Organon – Ecuador S.A. | Ecuador
Organon & Co. | Delaware
Organon (I.A.) B.V. | Bulgaria
Organon (India) Private Limited | India
Organon (Ireland) Ltd | Ireland
Organon (Philippines) Incorporated | Philippines
Organon (Shanghai) Pharmaceutical Technology Co., Ltd. | Peoples Republic of China
Organon (Thailand) Ltd. | Thailand

10

Organon Agencies B.V. | Netherlands
Organon Argentina Holdings B.V. | Argentina
Organon Argentina S.R.L. | Argentina
Organon Asia Holdings B.V. | Netherlands
Organon Asia Pacific Services Pte. Ltd. | Singapore
Organon Austria GmbH | Austria
Organon Belgium BV | Belgium
Organon BH d.o.o. | Bosnia and Herzegovina
Organon BioSciences International B.V. | Netherlands
Organon BioSciences Peru S.R.L. | Peru
Organon BioSciences S.R.L. | Romania
Organon BioSciences Ventures B.V. | Netherlands
Organon Canada Holdings BV | Netherlands
Organon Canada Holdings LLC | Delaware
Organon Canada Inc. | Canada
Organon Central East GmbH | Switzerland
Organon Chile SPA | Chile
Organon China B.V. | Netherlands
Organon Colombia S.A.S. | Colombia
Organon Comercializadora, S. de R.L. de C.V. | Mexico
Organon Czech Republic s.r.o. | Czech Republic
Organon Denmark ApS | Denmark
Organon Dominicana S.A. | Dominican Republic
Organon Egypt Ltd | Egypt
Organon Finance 1 LLC | Delaware
Organon Finance Inc. | Delaware
Organon Finland Oy | Finland
Organon France | France
Organon Global Inc. | Delaware
Organon GmbH | Switzerland
Organon Healthcare GmbH | Germany
Organon Holding I B.V. | Netherlands
Organon Holdings 9 B.V. | Netherlands
Organon Hong Kong Limited | Hong Kong
Organon International GmbH | Switzerland
Organon International Holdings 9 B.V. | Netherlands
Organon International Holdings B.V. | Netherlands
Organon International Services GmbH | Switzerland

11

Organon Ireland Holdings B.V. | Netherlands
Organon Italia S.r.l. | Italy
Organon Japan Holdings B.V. | Netherlands
Organon Japan Holdings G.K. | Japan
Organon K.K. | Japan
Organon Korea Co. Ltd. | Korea (the Republic of)
Organon KSA GmbH | Switzerland
Organon Laboratories Ltd | United Kingdom
Organon Latin America S.A. | Uruguay
Organon Latin America Services S. de R.L. | Panama
Organon Limited Liability Company | Russian Federation
Organon LLC | Delaware
Organon Malaysia Sdn. Bhd. | Malaysia
Organon Maroc S.A.R.L. | Morocco
Organon Middle East S.A.L. | Lebanon
Organon New Zealand Limited | New Zealand
Organon Norway AS | Norway
Organon Participations B.V. | Netherlands
Organon Pharma (Ireland) Limited | Ireland
Organon Pharma (UK) Limited | United Kingdom
Organon Pharma B.V. | Netherlands
Organon Pharma Costa Rica S.R.L. | Costa Rica
Organon Pharma d.o.o. | Croatia
Organon Pharma d.o.o. Beograde | Serbia
Organon Pharma FZ-LLC | United Arab Emirates
Organon Pharma Holdings LLC | Delaware
Organon Pharma Israel Ltd. | Israel
Organon Pharma Pty Ltd | Australia
Organon Pharma S. de R.L. | Panama
Organon Pharmaceutical Egypt LLC | Egypt
Organon Polska Sp. zo.o. | Poland
Organon Portugal Sociedade Unipessoal Lda | Portugal
Organon Puerto Rico LLC | Puerto Rico
Organon Salud, S.L. | Spain
Organon Singapore Pte. Ltd. | Singapore
Organon Slovakia s.r.o. | Slovakia
Organon South Africa (Pty) Ltd | South Africa
Organon Sweden AB | Sweden

12

Organon Trade LLC | Delaware
Organon Turkey Ilaclari Limited Sirketi | Turkey
Organon Ukraine Limited Liability Company | Ukraine
Organon USA LLC | New Jersey
OS ID AS | Norway
OS ID Hellas M.I.K.E | Greece
P.T. Merck Sharp & Dohme Indonesia | Indonesia
Parlanca Limited | Ireland
Peloton Therapeutics, Inc. | Delaware
Pentair Iceland Holdings ehf. | Iceland
Pentair Chile SpA | Chile
Peocon ehf. | Iceland
Pixobot, Inc. | Delaware
Polnet ID Spolka z ograniczona odpowiedzialnoscia | Poland
Productos Famaceuticos Organon, S. de R.L. de C.V. | Mexico
Prondil Sociedad Anónima | Uruguay
PT Intervet Indonesia | Indonesia
PT Merck Sharp Dohme Pharma Tbk 1 | Indonesia
Putexin Investments Limited | New Zealand
Rigontec GmbH | Germany
Rigontec, Inc. | Delaware
Rosetta Biosoftware UK Limited | United Kingdom
Rosetta Inpharmatics LLC | Delaware
S.C. Allflex Romania S.R.L. | Romania
S.C.R. (Engineers) Limited | Israel
Schering-Plough | France
Schering-Plough (India) Private Limited | India
Schering-Plough (Ireland) Unlimited Company | Ireland
Schering-Plough Animal Health Limited | New Zealand
Schering-Plough Bermuda Ltd. | Bermuda
Schering-Plough Canada Inc. | Canada
Schering-Plough Corporation | Philippines
Schering-Plough Corporation, U.S.A. | Delaware
Schering-Plough del Peru S.A. | Peru
Schering-Plough Holdings Limited | United Kingdom
Schering-Plough Indústria Farmacêutica Ltda. | Brazil
Schering-Plough Labo NV | Belgium
Schering-Plough Limited | United Kingdom

13

Schering-Plough S.A. | Panama
Schering-Plough S.A. | Paraguay
Schering-Plough S.A. | Spain
Schering-Plough S.A. | Uruguay
Schering-Plough S.A. de C.V. | Mexico
Schering-Plough Sante Animale | France
SCR Allflex Management, Ltd | Israel
SCR Dairy, Inc. | Delaware
SCR Europe S.R.L. | Italy
SCR Monitoring Mexico, S. de R.L. de C.V. | Mexico
Sentipharm AG | Switzerland
Servicios Organon S. de R.L. de C.V. | Brazil
Servicios Veterniarios Servet, Sociedad Anónima | Costa Rica
Shanghai MSD Pharmaceutical Trading Co., Ltd. | China
Sistemas de Identificacao Animal Ltda | Brazil
SmartCells, Inc. | Delaware
SOL Limited | Bermuda
S-P Ril Ltd. | United Kingdom
S-P Veterinary Holdings Limited | United Kingdom
S-P Veterinary Limited | United Kingdom
Stallmastaren AB | Sweden
SureFlap (NZ) Limited | New Zealand
SureFlap Limited | United Kingdom
SureFlap LLC | Florida
Tag ID Investments, Inc. | Delaware
Theriak B.V. | Netherlands]
Tilos Therapeutics, Inc. | Delaware
Trius Therapeutics LLC | Delaware
UAB Merck Sharp & Dohme | Lithuania
Undra, S.A. de C.V. | Mexico
Vaki A/S | Norway
Vaki Aquaculture Systems ehf. | Iceland
Vaki Chile Limitada | Chile
Vaki Scotland Ltd | United Kingdom
Vallée S.A. 1 | Brazil
VelosBio Inc. | Delaware
Venco Farmaceutica S.A. | Venezuela
Venco Holding GmbH | Switzerland

14

Vet Pharma Friesoythe GmbH | Germany
Veterinaria Premium, Sociedad Anonima | Guatemala
VetInvent, LLC | Delaware
Vetrex B.V. | Netherlands
Vetrex Egypt L.L.C. | Egypt
Vilsan Veteriner Ilaclari Ticaret ve Sanayi Anonim Sirketi | Turkey
Viralytics Limited | Australia
Vocaltag Ltd. | Israel
Vree Health Italia S.r.l. | Italy
Vree Health Ltd. | United Kingdom
Werthenstein Biopharma GmbH | Switzerland
Zoöpharm B.V. | Netherlands

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1 own less than 100%
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