**Exhibit 21**

 

SUBSIDIARIES OF CHEMTURACORPORATION as of February 9, 2009

 
| ** **                                       | ** ** | **Owned Directly  or  Indirectly by  Chemtura  Corporation** | ** ** | **State or  Country of  Organization** |
|--------------------------------------------------|------------|------------------------------------------------------------------------|------------|--------------------------------------------------|
| ** **                                       | ** ** | ** **                                                             | ** ** | ** **                                       |
| 9056-0921 Quebec Inc.                            |       | 100.0                                                                  |       | Canada                                           |
| A &  M Cleaning Products, LLC           |       | 100.0                                                                  |       | Delaware                                         |
| Anderol B.V.                                     |       | 100.0                                                                  |       | The Netherlands                                  |
| Anderol  Italia S.r.l.                           |       | 51.0                                                                   |       | Italy                                            |
| Antimony  Products (Proprietary) Ltd.            |       | 75.0                                                                   |       | South Africa                                     |
| Aqua Clear  Industries, LLC                      |       | 100.0                                                                  |       | New York                                         |
| ASCK, Inc.                                  |       | 100.0                                                                  |       | Delaware                                         |
| ASEPSIS Inc.                                     |       | 100.0                                                                  |       | Canada                                           |
| Asepsis U.K.  Limited                            |       | 100.0                                                                  |       | United Kingdom                                   |
| ASEPSIS, Inc.                               |       | 100.0                                                                  |       | Georgia                                          |
| ASIA Stabilizers Co., Ltd.                       |       | 65.0                                                                   |       | Korea                                            |
| Assured Insurance Company                        |       | 100.0                                                                  |       | Vermont                                          |
| Baxenden Chemicals Limited                       |       | 100.0                                                                  |       | United Kingdom                                   |
| Baxenden Scandinavia A.S.                        |       | 100.0                                                                  |       | Denmark                                          |
| BAYROL  Deutschland GmbH                         |       | 100.0                                                                  |       | Germany                                          |
| BAYROL  France S.A.S.                            |       | 100.0                                                                  |       | France                                           |
| BAYROL  Iberica S.A.                             |       | 100.0                                                                  |       | Spain                                            |
| BAYROL  Scandinavia A/S                          |       | 100.0                                                                  |       | Denmark                                          |
| BioLab  Australia Pty. Ltd.                      |       | 100.0                                                                  |       | Australia                                        |
| BioLab  Company Store, LLC                       |       | 100.0                                                                  |       | Delaware                                         |
| BioLab  Franchise Company, LLC                   |       | 100.0                                                                  |       | Delaware                                         |
| BioLab  Textile Additives, LLC                   |       | 100.0                                                                  |       | Delaware                                         |
| BioLab U.K. Limited                              |       | 100.0                                                                  |       | United Kingdom                                   |
| Bio-Lab Canada Inc.                              |       | 100.0                                                                  |       | Canada                                           |
| Bio-Lab, Inc.                               |       | 100.0                                                                  |       | Delaware                                         |
| BLSA  Industries (Proprietary) Limited           |       | 100.0                                                                  |       | South Africa                                     |
| Blue  Systèmes S.A.S.                       |       | 100.0                                                                  |       | France                                           |
| Certis Europe B.V.                               |       | 15.0                                                                   |       | The Netherlands                                  |
| Chemol Reszvenytarsasag International            |       | 78.3                                                                   |       | Hungary                                          |
| Chemtura (HK) Holding Co. Limited                |       | 100.0                                                                  |       | China-Hong Kong                                  |
| Chemtura (PTY) Limited                           |       | 100.0                                                                  |       | South Africa                                     |
| Chemtura (Thailand) Limited                      |       | 100.0                                                                  |       | Thailand                                         |
| Chemtura Australia Pty. Ltd.                     |       | 100.0                                                                  |       | Australia                                        |
| Chemtura Belgium N.V.                            |       | 100.0                                                                  |       | Belgium                                          |
| Chemtura Canada Co./Cie                          |       | 100.0                                                                  |       | Canada                                           |
| Chemtura Chemicals (Nanjing) Company  Limited    |       | 100.0                                                                  |       | China-PRC                                        |
| Chemtura Chemicals India Private  Limited        |       | 100.0                                                                  |       | India                                            |
| Chemtura Colombia Limitada                       |       | 100.0                                                                  |       | Colombia                                         |
| Chemtura Corporation U.K. Limited                |       | 100.0                                                                  |       | United Kingdom                                   |
| Chemtura Corporation Mexico, S.  de R.L. de C.V. |       | 100.0                                                                  |       | Mexico                                           |
| Chemtura  Europe d.o.o.                          |       | 100.0                                                                  |       | Slovenia                                         |
| Chemtura  Europe GmbH                            |       | 100.0                                                                  |       | Switzerland                                      |
| Chemtura Europe Limited                          |       | 100.0                                                                  |       | United Kingdom                                   |
| Chemtura France SAS                              |       | 100.0                                                                  |       | France                                           |
| Chemtura Holding Company, Inc.              |       | 100.0                                                                  |       | Delaware                                         |
| Chemtura Holdings GmbH                           |       | 100.0                                                                  |       | Germany                                          |
| Chemtura Hong Kong Limited                       |       | 100.0                                                                  |       | China-Hong Kong                                  |
| Chemtura Industria Quimica do Brasil  Limitada   |       | 100.0                                                                  |       | Brazil                                           |
| Chemtura Italy S.r.l.                            |       | 100.0                                                                  |       | Italy                                            |

 

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| Chemtura Japan Limited                                     |   | 100.0 |   | Japan               |
|------------------------------------------------------------|--------|-------|--------|---------------------|
| Chemtura Korea Inc.                                        |   | 100.0 |   | Korea               |
| Chemtura LLC                                               |   | 100.0 |   | Russia              |
| Chemtura Management GmbH                                   |   | 100.0 |   | Germany             |
| Chemtura  Manufacturing Germany GmbH                       |   | 100.0 |   | Germany             |
| Chemtura  Manufacturing Italy S.r.I.                       |   | 100.0 |   | Italy               |
| Chemtura  Manufacturing UK Limited                         |   | 100.0 |   | United Kingdom      |
| Chemtura Netherlands B.V.                                  |   | 100.0 |   | The Netherlands     |
| Chemtura New Zealand Limited                               |   | 100.0 |   | New Zealand         |
| Chemtura Organometallics GmbH                              |   | 100.0 |   | Germany             |
| Chemtura  Receivables LLC                                  |   | 100.0 |   | Delaware            |
| Chemtura  Quimica Argentina S.A.C.I.                       |   | 100.0 |   | Argentina           |
| Chemtura  Sales Europe GmbH                                |   | 100.0 |   | Switzerland         |
| Chemtura Sales France SAS                                  |   | 100.0 |   | France              |
| Chemtura  Sales Germany GmbH                               |   | 100.0 |   | Germany             |
| Chemtura Sales Mexico, S. de R.L. de C.V.                  |   | 100.0 |   | Mexico              |
| Chemtura  Sales UK Limited                                 |   | 100.0 |   | United Kingdom      |
| Chemtura Shanghai Co., Ltd.                                |   | 100.0 |   | China-PRC           |
| Chemtura Singapore Pte. Ltd.                               |   | 100.0 |   | Singapore           |
| Chemtura Specialties Ecuador S.A.                          |   | 100.0 |   | Ecuador             |
| Chemtura Taiwan Limited                                    |   | 100.0 |   | Taiwan              |
| Chemtura Technology B.V.                                   |   | 100.0 |   | The Netherlands     |
| Chemtura Technology Belgium N.V.                           |   | 100.0 |   | Belgium             |
| Chemtura UK  Limited                                       |   | 100.0 |   | United Kingdom      |
| Chemtura Vermögensverwaltungs  GmbH & Co. KG |   | 100.0 |   | Germany             |
| Chemtura Verwaltungs GmbH                                  |   | 50%   |   | Germany             |
| Chemtura Vinyl Additives GmbH                              |   | 100.0 |   | Germany             |
| CNK Chemical Realty Corporation                            |   | 100.0 |   | Pennsylvania        |
| CPC Bayrol Limited                                         |   | 100.0 |   | United Kingdom      |
| Crompton & Knowles of Canada  Limited             |   | 100.0 |   | Canada              |
| Crompton (Uniroyal Chemical) Registrations  Limited        |   | 100.0 |   | United Kingdom      |
| Crompton Chemicals B.V.                                    |   | 100.0 |   | The Netherlands     |
| Crompton Colors Incorporated                               |   | 100.0 |   | Delaware            |
| Crompton Corporation Ltda.                                 |   | 100.0 |   | Chile               |
| Crompton Europe Financial Services Company                 |   | 100.0 |   | Delaware            |
| Crompton European Holdings B.V.                            |   | 100.0 |   | The Netherlands     |
| Crompton Financial Holdings                                |   | 100.0 |   | Ireland             |
| Crompton Holding Corporation                               |   | 100.0 |   | Delaware            |
| Crompton Holdings B.V.                                     |   | 100.0 |   | The Netherlands     |
| Crompton Investments S.A.S.                                |   | 100.0 |   | France              |
| Crompton Ireland Investment Company Limited                |   | 100.0 |   | Ireland             |
| Crompton Kazakhstan LLP                                    |   | 100.0 |   | Kazakhstan          |
| Crompton LLC                                               |   | 100.0 |   | Delaware            |
| Crompton Monochem, Inc.                               |   | 100.0 |   | Louisiana           |
| Crompton Overseas B.V.                                     |   | 100.0 |   | The Netherlands     |
| Crompton S.A.                                              |   | 100.0 |   | Switzerland         |
| Crompton Services B.V.B.A.                                 |   | 100.0 |   | Belgium             |
| Crompton Servicios S.A. de C.V.                            |   | 100.0 |   | Mexico              |
| Crompton Specialties Asia Pacific Pte. Ltd.                |   | 100.0 |   | Singapore           |
| Crompton Specialties GmbH                                  |   | 100.0 |   | Germany             |
| Crompton Specialties Limited                               |   | 92.0  |   | Thailand            |
| Crompton Specialties Sdn. Bhd.                             |   | 100.0 |   | Malaysia            |
| Crompton Specialties Shanghai Company  Limited             |   | 100.0 |   | China-PRC           |
| Crompton, Inc.                                        |   | 100.0 |   | Philippines         |
| DiaKhem Technologies, LLC                                  |   | 30.0  |   | Michigan            |
| EPA B.V.                                                   |   | 100.0 |   | The Netherlands     |
| Estech GmbH & Co. KG                              |   | 49.0  |   | Germany             |
| Estech Managing GmbH                                       |   | 49.0  |   | Germany             |
| GL Development, Ltd.                                       |   | 100.0 |   | British West Indies |
| GLCC Laurel de Mexico, S.A. de C.V.                        |   | 100.0 |   | Mexico              |
| GLCC Laurel, LLC                                           |   | 100.0 |   | Delaware            |
| GLCC Mexico Holdings, Inc.                            |   | 100.0 |   | Delaware            |

 

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| Great Lakes  Chemical (Far East) Limited                       |   | 100.0 |   | Hong Kong       |
|----------------------------------------------------------------|--------|-------|--------|-----------------|
| Great Lakes  Chemical (Netherlands) B.V.                       |   | 100.0 |   | The Netherlands |
| Great Lakes  Chemical (S) Pte. Ltd                        |   | 100.0 |   | Singapore       |
| Great Lakes  Chemical Corporation                              |   | 100.0 |   | Delaware        |
| Great Lakes  Chemical Global, Inc.                        |   | 100.0 |   | Delaware        |
| Great Lakes  Chemical Konstanz GmbH                            |   | 100.0 |   | Germany         |
| Great Lakes  Europe Unlimited                                  |   | 100.0 |   | United Kingdom  |
| Great Lakes  Holding (Europe) A.G.                             |   | 100.0 |   | Switzerland     |
| Great Lakes  Holding Deutschland GmbH                          |   | 100.0 |   | Germany         |
| Great Lakes  Holding S.A.S.                                    |   | 100.0 |   | France          |
| Great Lakes  Trading Company, Inc.                        |   | 100.0 |   | Delaware        |
| Great Lakes Vermögensverwaltungs GmbH & Co. KG   |   | 100.0 |   | Germany         |
| GT Seed Treatment, Inc.                                   |   | 100.0 |   | Minnesota       |
| Gulf Stabilizers Industries Sales FZCO                         |   | 52.0  |   | Dubai           |
| Gulf Stabilizers Industries, Ltd.                              |   | 49.0  |   | Saudi Arabia    |
| Hatco Advanced Technologies Corporation                        |   | 100.0 |   | Delaware        |
| Hattech GmbH                                                   |   | 100.0 |   | Germany         |
| HomeCare Labs, Inc.                                       |   | 100.0 |   | Delaware        |
| Hydrotech Chemical Corporation                                 |   | 100.0 |   | Canada          |
| Hydrotech Chemical Corporation Pty. Ltd.                       |   | 100.0 |   | Australia       |
| INTERBAYROL, A.G.                                              |   | 100.0 |   | Switzerland     |
| ISCI, Inc.                                                |   | 100.0 |   | Indiana         |
| Isofoam Limited                                                |   | 100.0 |   | England         |
| Kem Manufacturing Corporation                                  |   | 100.0 |   | Georgia         |
| Knight Investments B.V.                                        |   | 100.0 |   | The Netherlands |
| Laurel Industries Holdings, Inc.                          |   | 100.0 |   | Delaware        |
| Monochem, Inc.                                            |   | 100.0 |   | Louisiana       |
| MPC S.A.R.L.                                                   |   | 100.0 |   | France          |
| Nanjing Crompton Shuguang Organosilicon  Specialties Co., Ltd. |   | 85.0  |   | China-PRC       |
| Naugatuck Treatment Company                                    |   | 100.0 |   | Connecticut     |
| Niagara Insurance Company, Ltd.                                |   | 100.0 |   | Bermuda         |
| NPC Services, Inc.                                        |   | 12.75 |   | Louisiana       |
| Poolbrite  (SA) (Pty) Ltd                                      |   | 100.0 |   | South Africa    |
| POOLTIME  GmbH                                                 |   | 100.0 |   | Germany         |
| PT Crompton Indonesia                                          |   | 100.0 |   | Indonesia       |
| QO Chemicals GmbH                                              |   | 100.0 |   | Germany         |
| QO Chemicals, Inc.                                        |   | 100.0 |   | Delaware        |
| Recreational Water Products Inc.                               |   | 100.0 |   | Canada          |
| Recreational Water Products Pty. Ltd.                          |   | 100.0 |   | Australia       |
| Recreational Water Products, Inc.                         |   | 100.0 |   | Delaware        |
| Rubicon LLC                                                    |   | 50.0  |   | Utah            |
| Sonneborn Crompton Sodium Joint  Venture B.V.                  |   | 50.0  |   | The Netherlands |
| TETRABROM Technologies Ltd.                                    |   | 50.0  |   | Israel          |
| Unimers India Limited                                          |   | 1.62  |   | India           |
| Uniroyal Chemical Company Limited                              |   | 100.0 |   | Bahamas         |
| Uniroyal Chemical Company Limited  (Delaware)                  |   | 100.0 |   | Delaware        |
| Uniroyal Chemical S.A.                                         |   | 100.0 |   | Spain           |
| Uniroyal Chemical S.A.R.L.                                     |   | 100.0 |   | Switzerland     |
| Uniroyal Chemical Taiwan Limited                               |   | 80.0  |   | Taiwan          |
| VenOmix, Inc.                                             |   | 8.12  |   | Delaware        |
| Weber City Road LLC                                            |   | 100.0 |   | Louisiana       |
| WRL of Indiana, Inc.                                      |   | 100.0 |   | Indiana         |

 

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