**Exhibit 21.1**

 

**ROCKWOODHOLDINGS, INC.**

**SUBSIDIARIES**

 
| **Name of Subsidiary**                                                           |   | **State/Jurisdiction of Incorporation** |
|--------------------------------------------------------------------------------------------|--------|---------------------------------------------------|
|                                                                                       |   |                                              |
| Aachener Chemische Werke Gesellschaft für glastechnische Produkte und  Verfahren GmbH |   | Germany                                           |
| Alberti & Co.  GmbH                                                               |   | Germany                                           |
| AlphaGary (Canada) Limited                                                                 |   | Canada                                            |
| AlphaGary Corporation                                                                      |   | Delaware                                          |
| AlphaGary Limited                                                                          |   | United Kingdom                                    |
| AM Craig Ltd.                                                                              |   | United Kingdom                                    |
| Ardrox—Agena Quimica  Ltda.                                                           |   | Brazil                                            |
| Ardrox Ltd.                                                                                |   | United Kingdom                                    |
| BAE  Vermögensverwaltungs GmbH                                                        |   | Germany                                           |
| BCI Pensions Trustees  Ltd.                                                                |   | United Kingdom                                    |
| Bedec S.A.S.                                                                               |   | France                                            |
| Brent Europe Ltd.                                                                          |   | United Kingdom                                    |
| Brent International  B.V.                                                                  |   | United Kingdom                                    |
| Brockhues  GmbH & Co. KG                                                          |   | Germany                                           |
| Caledonian Applied  Technology Limited                                                     |   | United Kingdom                                    |
| CeramTec Innovative  Ceramic Engineering (M) Sdn. Bhd.                                |   | Malaysia                                          |
| CeramTec AG                                                                                |   | Germany                                           |
| CeramTec Czech Republic  s.r.o.                                                            |   | Czech Republic                                    |
| CeramTec—ETEC GmbH                                                                    |   | Germany                                           |
| CeramTec Ibérica, Innovative  Ceramic Engineering, S.L.                               |   | Spain                                             |
| CeramTec Italia S.r.l.(a)                                                                  |   | Italy                                             |
| CeramTec Korea Ltd,  Innovative Ceramic Engineering                                        |   | Korea                                             |
| CeramTec North America  Innovative Ceramic Engineering Corporation                         |   | Delaware                                          |
| CeramTec UK Ltd.                                                                           |   | United Kingdom                                    |
| CeramTec Suzhou Ltd.                                                                       |   | China                                             |
| Cerasiv GmbH Innovatives Keramik-Engineering                                               |   | Germany                                           |
| Changchun Chemetall  Chemicals Co., Ltd.                                                   |   | China                                             |
| Changshu Rockwood  Pigments Company Limited                                                |   | China                                             |
| Chemetall (Australasia)  Pty. Ltd.                                                         |   | Australia                                         |
| Chemetall (Proprietary)  Ltd.                                                              |   | South Africa                                      |
| Chemetall (Thailand)  Co. Ltd.                                                             |   | Thailand                                          |
| Chemetall Danmark A/S                                                                      |   | Denmark                                           |
| Chemetall AB                                                                               |   | Sweden                                            |
| Chemetall AG                                                                               |   | Switzerland                                       |
| Chemetall Asia Pte.  Ltd.                                                                  |   | Singapore                                         |
| Chemetall Corp.                                                                            |   | Delaware                                          |
| Chemetall do Brasil  Ltda.                                                                 |   | Brazil                                            |
| Chemetall Finland Oy                                                                       |   | Finland                                           |
| Chemetall Foote Corp.                                                                      |   | Delaware                                          |
| Chemetall Ges.m.b.H.                                                                       |   | Austria                                           |
| Chemetall GmbH                                                                             |   | Germany                                           |
| Chemetall Holding GmbH                                                                     |   | Austria                                           |
| Chemetall Hong Kong  Ltd.                                                                  |   | China                                             |
| Chemetall Hungária  Vegyianyagokat Gyártó es Forgalmazó Kft            |   | Hungary                                           |
| Chemetall India Company  Ltd.                                                              |   | United Kingdom                                    |
| Chemetall Italia S.r.l.                                                                    |   | Italy                                             |
| Chemetall Japan K.K.                                                                       |   | Japan                                             |
| Chemetall Lithium India  Pvt. Ltd.                                                         |   | India                                             |
| Chemetall Mexicana, S.A. de C.V.                                                           |   | Mexico                                            |
| Chemetall N.V.                                                                             |   | Belgium                                           |

 

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| Chemetall Philippines  Co. Ltd., Inc.                              |   | Philippines    |
|-------------------------------------------------------------------------|--------|----------------|
| Chemetall PLC                                                           |   | United Kingdom |
| Chemetall ooo                                                           |   | Russia         |
| Chemetall Polska Sp.z  o.o.                                             |   | Poland         |
| Chemetall S.A.                                                          |   | Spain          |
| Chemetall S.r.l.                                                        |   | Italy          |
| Chemetall Sanayi Kimyasallari Ticaret ve Sanayi A.S.                    |   | Turkey         |
| Chemetall S.A.S.                                                        |   | France         |
| Chemetall Speciality  Chemicals Ltd.                                    |   | United Kingdom |
| Chemetall Surface  Treatment Holding Co., Ltd.                          |   | Thailand       |
| Chemetall Taiwan Co.,  Ltd.                                             |   | Taiwan         |
| Chemetall-Rai India  Ltd.                                               |   | India          |
| Chemical  Specialties, Inc.                                        |   | North Carolina |
| Chemserve Ltd.                                                          |   | United Kingdom |
| ChemStore GmbH                                                          |   | Germany        |
| Chillihurst Limited                                                     |   | United Kingdom |
| Chongqing Chemetall  Chemicals Co., Ltd.                                |   | China          |
| CM Services B.V.                                                        |   | Netherlands    |
| CM-Hilfe GmbH  Unterstützungskasse                                 |   | Germany        |
| Creambay Limited                                                        |   | United Kingdom |
| Creamglade Limited                                                      |   | United Kingdom |
| CSI Kemwood AB                                                          |   | Sweden         |
| CSI Wood Protection  Limited                                            |   | United Kingdom |
| Deutsche Baryt-Industrie Dr. Rudolf Alberti GmbH & Co. KG |   | Germany        |
| DICON Explosives  Company Ltd.                                          |   | Nigeria        |
| DNVJ Vermögensverwaltung  GmbH                                     |   | Germany        |
| Dynamit Nobel GmbH                                                      |   | Germany        |
| Dynamit Nobel  Unterstützungsfonds GmbH                            |   | Germany        |
| Emil Müller GmbH                                                   |   | Germany        |
| ETEC - DuraWear, Inc.                                              |   | Delaware       |
| ETEC Technical Ceramics  Corp.                                          |   | Colorado       |
| Excalibur Realty  Company                                               |   | Delaware       |
| Excalibur Realty UK  Limited                                            |   | United Kingdom |
| Exsil, Inc.                                                        |   | Delaware       |
| Foote Chile Holding  Company                                            |   | Delaware       |
| Foote Minera e Inversiones Ltda.                                        |   | Chile          |
| Guangzhou Huali  Sachtleben Chemicals Company Ltd. (a)                  |   | China          |
| hebro chemie GmbH                                                       |   | Germany        |
| Holliday Chemical  Espana S.A.                                          |   | Spain          |
| Holliday France S.A.                                                    |   | France         |
| Holliday Pigments International S.A.                                    |   | France         |
| Holliday Pigments S.A.                                                  |   | France         |
| Industrieservice  Ges.m.b.H.                                            |   | Austria        |
| Inorganic Pigments  Limited                                             |   | United Kingdom |
| KENDELL S.r.l.                                                          |   | Italy          |
| Knight Chimiques de Spécialité S.A.S.                         |   | France         |
| Knight Lux 1 S.à.r.l.                                              |   | Luxembourg     |
| Knight Lux 2 S.à.r.l.                                              |   | Luxembourg     |
| Knight Polska 1 Sp.z  o.o.                                              |   | Poland         |
| LRG Recycling GmbH  Leverkusen                                          |   | Germany        |
| Maybrook, Inc.                                                     |   | Delaware       |
| Metalon Stolberg Gesellschaft mit beschränkter Haftung             |   | Germany        |
| Mustardgrange Limited                                                   |   | United Kingdom |
| Nigerian Development  and Construction Company Ltd.                     |   | Nigeria        |
| Nuodex Mexicana, S.A. des C.V.                                          |   | Mexico         |

 

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| Nuodex Italiana S.r.l.                                          |   | Italy          |
|-----------------------------------------------------------------|--------|----------------|
| Oakite Canada Ltd.                                              |   | Canada         |
| Oakite  Products, Inc.                                     |   | Delaware       |
| Perrin Development LLC                                          |   | Mississippi    |
| Pool Spa  Holdings, Inc.                                   |   | Delaware       |
| PIGMENT-CHEMIE GmbH                                             |   | Germany        |
| Press + Sintertechnik Sp.z o.o.                                 |   | Poland         |
| Press and Sinter Technics de Mexico, S.A. de C.V.S.A.  de C.V.  |   | Mexico         |
| Princeton Silver  Limited                                       |   | United Kingdom |
| PST Press Sintertécnica Brasil Ltda.                       |   | Brazil         |
| Process Ink Holdings  Ltd.                                      |   | United Kingdom |
| Process Inks And  Coatings Ltd.                                 |   | United Kingdom |
| Representation Chemetall Polska Sp.z o.o.                       |   | Ukraine        |
| Rockwood (Ningbo)  Chemicals Corporation Limited                |   | China          |
| Rockwood Absorbents  (Baulking) Limited                         |   | United Kingdom |
| Rockwood Additives  Limited                                     |   | United Kingdom |
| Rockwood America Inc.                                           |   | Delaware       |
| Rockwood Clay Additives  GmbH                                   |   | Germany        |
| Rockwood Far East  Limited                                      |   | China          |
| Rockwood Hong Kong  Limited                                     |   | China          |
| Rockwood Industries  Spain S.L.                                 |   | Spain          |
| Rockwood Italia S.p.A.                                          |   | Italy          |
| Rockwood Pigmente  Holding GmbH                                 |   | Germany        |
| Rockwood Pigments (UK)  Limited                                 |   | United Kingdom |
| Rockwood Pigments and  Additives Pte. Ltd.                      |   | Singapore      |
| Rockwood Pigments and  Trading Pty Ltd.                         |   | Australia      |
| Rockwood Pigments  NA, Inc.                                |   | Delaware       |
| Rockwood Shenzhen  Pigments Company Ltd.                        |   | China          |
| Rockwood Specialties  Australia Pty Ltd.                        |   | Australia      |
| Rockwood Specialties  Consolidated, Inc.                   |   | Delaware       |
| Rockwood Specialties  GmbH                                      |   | Delaware       |
| Rockwood Specialties  Group GmbH                                |   | Germany        |
| Rockwood Specialties  Group, Inc.                          |   | Delaware       |
| Rockwood Specialties  Inc.                                      |   | Delaware       |
| Rockwood Specialties  International, Inc.                  |   | Delaware       |
| Rockwood Specialties  Limited                                   |   | United Kingdom |
| Rockwood Taicang  Pigments Company Ltd.                         |   | China          |
| Rockwood  Vermögensverwaltung GmbH                         |   | Germany        |
| Rockwood Wafer Reclaim  SAS                                     |   | France         |
| Sachtleben Chemie GmbH                                          |   | Germany        |
| Sachtleben Corporation                                          |   | Delaware       |
| Sachtleben GmbH                                                 |   | Germany        |
| Sachtleben Oy                                                   |   | Finland        |
| Sachtleben Pigments Oy                                          |   | Finland        |
| Sachtleben Trading  (Shanghai) Company Limited                  |   | China          |
| Sachtleben Wasserchemie  (Holding) GmbH                         |   | Germany        |
| Sachtleben Wasserchemie  GmbH                                   |   | Germany        |
| Sachtleben Wasserchemie  — MIWAC GmbH                      |   | Germany        |
| Sales de Magnesio Ltda.                                         |   | Chile          |
| Shanghai CeramTec  Innovative Ceramic Engineering Co., Ltd. (a) |   | China          |
| Shanghai Chemetall  Chemicals Co., Ltd.                         |   | China          |
| Silo Pigmente GmbH                                              |   | Germany        |
| Sociedad Chilena de Litio Ltda.                                 |   | Chile          |
| Southern Clay  Products, Inc.                              |   | Texas          |
| Southern Color  N.A., Inc.                                 |   | Delaware       |
| Stadeln Genehmigungshaltergesellschaft  mbH                     |   | Germany        |

 

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| The Brent Manufacturing  Company Ltd.               |   | United Kingdom |
|-----------------------------------------------------|--------|----------------|
| TRI-K Industries, Inc.                         |   | New Jersey     |
| Troisdorf  Genehmigungshaltergesellschaft mbH       |   | Germany        |
| Viance Limited                                      |   | United Kingdom |
| Viance LLC                                          |   | Delaware       |
| Viance Oy                                           |   | Finland        |
| White Pigments LLC                                  |   | Delaware       |
| Würgendorf  Genehmigungshaltergesellschaft mbH |   | Germany        |

 

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(a) In the processof dissolution

 

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