Exhibit (21.1)

SUBSIDIARIES OF ECOLAB INC.


Entity Name	State or Other Jurisdiction of Incorporation

NLC Process and Water Services SARL	Algeria
Ecolab (Antigua) Ltd.	Antigua & Barbuda
Anios America S.A.	Argentina
Ecolab Argentina S.R.L.	Argentina
Ecolab Services Argentina S.R.L.	Argentina
Ecolab (Aruba) N.V.	Aruba
Ecolab (Fiji) Pty Limited	Australia
Ecolab AU2 Pty Ltd	Australia
Ecolab Pty Ltd.	Australia
Purolite Pty Ltd	Australia
Ecolab GmbH	Austria
NALCO HOLDINGS G.m.b.H.	Austria
NALCO OSTERREICH Ges m.b.H.	Austria
Ecolab Limited	Bahamas
Ecolab Bahrain S.P.C.	Bahrain
Ecolab (Barbados) Limited	Barbados
CID LINES NV	Belgium
Cirlam BV	Belgium
Copal Holding NV	Belgium
Copal Invest NV	Belgium
Ecolab B.V.	Belgium
Ecolab Production Belgium B.V.	Belgium
Kay BV	Belgium
NALCO BELGIUM B.V.	Belgium
Ecolab Quimica Ltda.	Brazil
Endoclear Equipamentos Médicos Hospitalares Ltda.	Brazil
Purolite do Brasil Ltda	Brazil
Nalco (BN) SDN BHD	Brunei Darussalam
Ecolab EOOD	Bulgaria
Ecolab CDN 2 Co.	Canada
Ecolab CDN 4 ULC	Canada
Ecolab Co. Compagnie Ecolab	Canada
Les Produits Chimiques ERPAC Inc.	Canada
Nalco Canada ULC	Canada
Ecolab S.A.	Chile
Nalco Industrial Services Chile Limitada	Chile
Bioquell Technology (Shenzhen) Ltd.	China


Entity Name	State or Other Jurisdiction of Incorporation
CID Lines Beijing Animal Hygiene Co Ltd.	China
Ecolab (China) Investment Co., Ltd	China
Ecolab (GZ) Chemicals Limited	China
Ecolab (Taicang) Technology Co., Ltd.	China
Ecolab Chemicals Limited	China
Jianghai Environmental Protection Co., Ltd.	China
Nalco (China) Environmental Solution Co. Ltd.	China
NALCO (SHANGHAI) TRADING CO. LTD.	China
NALCO INDUSTRIAL SERVICES (NANJING) CO., LTD.	China
NALCO INDUSTRIAL SERVICES (SUZHOU) CO., LTD.	China
Purolite (China) Co., Ltd.	China
Zhejiang Purosoft Environment Engineering Co., Ltd	China
Ecolab Colombia S. A.	Colombia
Ecolab SRL	Costa Rica
Purolite s.r.o.	Czech Republic
CALGON LLC	Delaware
Chamtech, L.L.C.	Delaware
E&M Bio-Chemicals, LLC	Delaware
Ecolab Acquisition LLC	Delaware
Ecolab Holdings (Europe) LLC	Delaware
Ecolab Holdings Inc.	Delaware
Ecolab Israel Holdings LLC	Delaware
Ecolab Lux Partner LLC	Delaware
Ecolab Manufacturing Inc.	Delaware
Ecolab Production LLC	Delaware
Ecolab U.S. 2 Inc.	Delaware
Ecolab U.S. 6 LLC	Delaware
Ecolab U.S. 7 LLC	Delaware
Ecolab US 1 GP	Delaware
Ecolab USA Inc.	Delaware
Microtek Medical Inc.	Delaware
NALCO CHINA HOLDINGS LLC	Delaware
Nalco Company LLC (1)	Delaware
Nalco Contract Operations, LLC	Delaware
NALCO GLOBAL HOLDINGS LLC	Delaware
NALCO HOLDING COMPANY	Delaware
NALCO INDUSTRIAL OUTSOURCING COMPANY	Delaware
NALCO INTERNATIONAL HOLDINGS LLC	Delaware
Nalco Production LLC	Delaware
NALCO PWS, INC.	Delaware
NALCO TWO, INC.	Delaware


Entity Name	State or Other Jurisdiction of Incorporation
NALCO U.S. HOLDINGS LLC	Delaware
Nalco US 1 LLC	Delaware
Nalco Water Pretreatment Solutions, LLC	Delaware
NALCO WORLDWIDE HOLDINGS LLC	Delaware
Purolite LLC	Delaware
Quantum Technical Services, LLC	Delaware
Wabasha Leasing LLC	Delaware
Ecolab ApS	Denmark
NALCO DANMARK APS	Denmark
Microtek Dominicana S.A.	Dominican Republic
Ecolab Ecuador Cia. Ltda.	Ecuador
NALCO EGYPT TRADING	Egypt
NALCO EGYPT, LTD.	Egypt
Ecolab, S.A. de C.V.	El Salvador
NALCO FINLAND MANUFACTURING OY	Finland
NALCO FINLAND OY	Finland
Oy Ecolab AB	Finland
Anios Diffusion SAS	France
Anios Manufacturing SAS	France
CID Lines France Sarl	France
DMD	France
Ecolab FR 1 SAS	France
Ecolab FR 4 SAS	France
Ecolab Pest France SAS	France
Ecolab Production France SAS	France
Ecolab SAS	France
Ecolab Services SNC	France
Ecolab SNC	France
Hydenet SAS	France
Laboratoires Anios SAS	France
Laboratoires Anios-Distribution SAS	France
NALCO FRANCE SAS	France
Purolite SAS	France
Soluscope SAS	France
Microtek Medical Holdings Inc.	Georgia
Ecolab DE 1 GmbH	Germany
Ecolab Deutschland GmbH	Germany
Ecolab Engineering GmbH	Germany
Ecolab Export GmbH	Germany
Ecolab Pest Deutschland GmbH	Germany
Nalco Deutschland GmbH	Germany


Entity Name	State or Other Jurisdiction of Incorporation
Nalco Deutschland Manufacturing GmbH	Germany
Nalco Manufacturing Beteiligungs GmbH	Germany
Nalco Real Estate GmbH	Germany
Purolite GmbH	Germany
Ecolab A.E.B.E.	Greece
Ecolab (Guam) LLC	Guam
Ecolab, Sociedad Anonima	Guatemala
Quimicas Ecolab S.A. de C.V.	Honduras
Ecolab HK 1 Limited	Hong Kong
Ecolab HK 2 Limited	Hong Kong
Ecolab Limited	Hong Kong
Ecolab Name Holding Limited	Hong Kong
Ecolab Water Holding Limited	Hong Kong
NALCO HONG KONG LIMITED	Hong Kong
Ecolab Global Business Services Kft.	Hungary
Ecolab Digital Center Private Limited	India
Ecolab Food Safety & Hygiene Solutions Private Limited	India
Nalco Water India Private Limited	India
Purolite Private Limited	India
PT Ecolab International Indonesia	Indonesia
PT Ecolab Technologies and Services	Indonesia
Bioquell Global Logistics (Ireland) Ltd.	Ireland
Ecolab Finance Company Designated Activity Company	Ireland
Ecolab Limited	Ireland
Ecolab Manufacturing IE Limited	Ireland
Ecolab JVZ Limited	Israel
NALCO ISRAEL INDUSTRIAL SERVICES LTD	Israel
Ecolab Holding Italy S.r.l.	Italy
Ecolab Production Italy Srl	Italy
Ecolab Srl	Italy
Immobiliare R.E.O.P.A. SRL	Italy
NALCO ITALIANA HOLDINGS S.R.L.	Italy
NALCO ITALIANA MANUFACTURING S.R.L.	Italy
NALCO ITALIANA SrL	Italy
Nuova Farmec S.r.l.	Italy
Ecolab Limited	Jamaica
Ecolab G.K.	Japan
KATAYAMA NALCO INC.	Japan
Nalco Japan G.K.	Japan
Purolite KK	Japan
Aqua Environmental Limited	Jersey


Entity Name	State or Other Jurisdiction of Incorporation
Cymru Holdings Limited	Jersey
Company Ecolab LLP	Kazakhstan
QazSorbent LLP	Kazakhstan
Ecolab East Africa (Kenya) Limited	Kenya
Purolite LLC	Korea
Ecolab Korea Ltd.	Korea
EPN Water CO., LTD	Korea
NALCO KOREA LIMITED	Korea
Ecolab, SIA	Latvia
Nalco Libya	Libya
Ecolab LUX & Co Holdings S.C.A.	Luxembourg
Ecolab LUX 1 Sarl	Luxembourg
Ecolab Lux 10 Sarl	Luxembourg
Ecolab Lux 12 SCA	Luxembourg
Ecolab Lux 13 Sarl	Luxembourg
Ecolab Lux 14 Sarl	Luxembourg
Ecolab Lux 16 Sarl	Luxembourg
Ecolab Lux 17 Sarl	Luxembourg
Ecolab LUX 2 Sarl	Luxembourg
Ecolab LUX 4 Sarl	Luxembourg
Ecolab LUX 7 Sarl	Luxembourg
Ecolab Lux 9 Sarl	Luxembourg
Ecolab LUX Sarl	Luxembourg
Nalco Worldwide Holdings S.à r.l./B.V.	Luxembourg
Ecolab-Importacao E. Exportacao Limitada	Macau
Ecolab International SDN BHD	Malaysia
Ecolab Sdn Bhd	Malaysia
Ecolab Services Malaysia SDN. BHD.	Malaysia
Ecolab Malta 1 Limited	Malta
Ecolab Malta 2 Limited	Malta
Ecolab Malta 3 Limited	Malta
Ecolab Malta GPS	Malta
Ecolab MT Limited	Malta
Microtek Medical Malta Holding Limited	Malta
Microtek Medical Malta Limited	Malta
Abednego de Mexico S. de R.L. de C.V.	Mexico
CID Lines Mexico, S.A. DE C.V.	Mexico
Ecolab Holdings Mexico, S. de R. L. de C. V.	Mexico
Ecolab, S. de R.L. de C.V.	Mexico
NALCO DE MEXICO, S. de R. L. de C.V.	Mexico
Purolite, S. de R.L. de C.V.	Mexico


Entity Name	State or Other Jurisdiction of Incorporation
Abednego Environmental Services, LLC	Michigan
Abednego Mexico Holdings, LLC	Michigan
Ecolab Maroc Société à Responsabilité Limitée	Morocco
Ecolab B.V.	Netherlands
ECOLAB NL 10 B.V.	Netherlands
Ecolab NL 11 B.V.	Netherlands
Ecolab NL 15 BV	Netherlands
Ecolab NL 16 B.V.	Netherlands
Ecolab NL 23 B.V.	Netherlands
Ecolab NL 3 BV	Netherlands
Ecolab Production Netherlands B.V.	Netherlands
Ecolabone B.V.	Netherlands
INTERNATIONAL WATER CONSULTANT B.V.	Netherlands
Microtek Medical B.V.	Netherlands
NALCO DUTCH HOLDINGS B.V.	Netherlands
NALCO EUROPE B.V.	Netherlands
NALCO GLOBAL HOLDINGS B.V.	Netherlands
Nalco Holding B.V.	Netherlands
Nalco International Holdings B.V.	Netherlands
NALCO NETHERLANDS B.V.	Netherlands
NALCO OVERSEAS HOLDING B.V.	Netherlands
NALCO UNIVERSAL HOLDINGS BV	Netherlands
Nalco Wastewater Contract Operations, Inc.	New York
Ecolab New Zealand	New Zealand
Purolite NZ Limited	New Zealand
Ecolab y Compañia Colectiva de Responsabilidad Limitada	Nicaragua
MOBOTEC AB, LLC	North Carolina
Ecolab a.s.	Norway
NALCO PAKISTAN (PRIVATE) LIMITED	Pakistan
Ecolab S.A.	Panama
NANOSPECIALTIES, LLC	Pennsylvania
Ecolab Perú Holdings S.R.L.	Peru
Ecolab Philippines Inc.	Philippines
NALCO PHILIPPINES INC.	Philippines
CID Lines Sp. z o. o.	Poland
Ecolab Production Poland sp. z o.o.	Poland
Ecolab Services Poland Sp. z o o	Poland
Ecolab Sp. z o o	Poland
Nalco Polska Sp. z o. o.	Poland
Purolite sp. z o.o.	Poland
NALCO PORTUGUESA (QUÍMICA INDUSTRIAL), UNIPESSOAL LDA	Portugal


Entity Name	State or Other Jurisdiction of Incorporation
Ecolab SRL	Romania
Purolite SRL	Romania
AO Ecolab	Russian Federation
CID Lines LLC	Russian Federation
Meratech Rus Group LLC	Russian Federation
NALCO COMPANY OOO	Russian Federation
Ecolab (St. Lucia) Limited	Saint Lucia
NALCO SAUDI CO. LTD.	Saudi Arabia
Ecolab Hygiene d.o.o.	Serbia
Bioquell Asia Pacific Pte. Ltd.	Singapore
Ecolab Asia Pacific Pte. Ltd.	Singapore
Ecolab Pte. Ltd.	Singapore
NALCO ASIA HOLDING COMPANY PTE. LTD.	Singapore
Purolite Pte. Ltd.	Singapore
Ecolab d.o.o.	Slovenia
Ecolab (Proprietary) Limited	South Africa
Lobster Ink Africa (Pty.) Ltd.	South Africa
NALCO AFRICA (PTY.) LTD.	South Africa
Purolite (Pty) Ltd	South Africa
CID Lines Iberica SL	Spain
DERYPOL SA	Spain
Ecolab Hispano-Portuguesa S.L.	Spain
Ecolab Spain Services S.L.U.	Spain
Hicopla SL	Spain
NALCO ESPANOLA MANUFACTURING, S.L.U.	Spain
NALCO ESPAÑOLA, S.L.	Spain
Ecolab AB	Sweden
NALCO AB	Sweden
Ecolab (Schweiz) GmbH	Switzerland
Ecolab CH 1 GmbH	Switzerland
Ecolab CH 2 GmbH	Switzerland
Ecolab CH 6 GmbH	Switzerland
Ecolab Europe GmbH	Switzerland
Lobster International S.A.	Switzerland
Nalco Schweiz GmbH	Switzerland
Purolite AG	Switzerland
Ecolab Ltd.	Taiwan
NALCO TAIWAN CO., LTD.	Taiwan
Ecolab East Africa (Tanzania) Limited	Tanzania
Ecolab Limited	Thailand
NALCO INDUSTRIAL SERVICES (THAILAND) CO. LTD.	Thailand


Entity Name	State or Other Jurisdiction of Incorporation
Ecolab (Trinidad and Tobago) Unlimited	Trinidad And Tobago
Purolite LLC	Tunisia
Ecolab Temizleme Sistemleri Limited Sirketi	Turkey
Nalco Anadolu Kimya Sanayi ve Ticaret Limited Sirketi	Turkey
Oksa Kimya Sanayi A.S.	Turkey
Purolite Ileri Kimyasal Ticaret Ltd	Turkey
Ecolab East Africa (Uganda) Limited	Uganda
Ecolab LLC	Ukraine
Ecolab Gulf FZE	United Arab Emirates
Nalco Middle East FZE	United Arab Emirates
Bioquell Limited	United Kingdom
Bioquell UK Limited	United Kingdom
Bro-Tech Limited	United Kingdom
Ecolab (U.K.) Holdings Limited	United Kingdom
Ecolab Limited	United Kingdom
Ecolab Manufacturing UK Limited	United Kingdom
Enviroflo Engineering Limited	United Kingdom
LHS (UK) Limited	United Kingdom
NALCO ACQUISITION ONE	United Kingdom
NALCO INVESTMENTS U.K. LIMITED	United Kingdom
NALCO LIMITED	United Kingdom
NALCO MANUFACTURING LTD.	United Kingdom
Purolite (Int.) Ltd	United Kingdom
Purolite Ltd	United Kingdom
Shield Holdings Limited	United Kingdom
Shield Medicare Limited	United Kingdom
Technical Textile Services Limited	United Kingdom
Techtex Holdings Limited	United Kingdom
Ecolab S.R.L.	Uruguay
Ecolab S.A.	Venezuela
Ecolab Viet Nam Company Limited	Viet Nam

(1) This subsidiary also conducts business under the assumed name of NALCO Water, An Ecolab Company.