Exhibit 21

Subsidiaries

(as of January 1, 2010)



|                                            |  |                                 
|------------------------------------------- |  | --------------------------------
|Name                                        |  | State or Country of Organization
|                                            | 
|Avondale Ammonia Company                    |  | Delaware                        
|C.I.I. Luxembourg, S.a.r.l                  |  | Grand-Duchy of Luxembourg       
|Carteret Development LLC                    |  | Delaware                        
|Coquimbo, SGPS LDA                          |  | Portugal                        
|Cyquim de Colombia S.A.                     |  | Delaware                        
|Cytec Acrylic Fibers Inc.                   |  | Delaware                        
|Cytec Aerospace Far East Corp.              |  | Delaware                        
|Cytec Ammonia Inc.                          |  | Delaware                        
|Cytec Asia/Pacific Holding Pty Limited      |  | Australia                       
|Cytec Australia Holdings Pty Limited        |  | Australia                       
|Cytec Austria GmbH                          |  | Austria                         
|Cytec Australia Limited                     |  | Delaware                        
|Cytec Belgium BVBA                          |  | Belgium                         
|Cytec Brasil Especialidades Quimicas Ltda.  |  | Brazil                          
|Cytec Brewster Phosphates Inc.              |  | Delaware                        
|Cytec Canada Inc.                           |  | Ontario                         
|Cytec Carbon Fibers LLC                     |  | Delaware                        
|Cytec Chile Limitada                        |  | Chile                           
|Cytec de Argentina S.A.                     |  | Delaware                        
|Cytec de Mexico S.A. de C.V.                |  | Mexico                          
|Cytec de Puerto Rico, Inc.                  |  | Puerto Rico                     
|Cytec Deutschland GmbH                      |  | Germany                         
|Cytec Engineered Materials GmbH             |  | Germany                         
|Cytec Engineered Materials Inc.             |  | Delaware                        
|Cytec Engineered Materials Limited          |  | England                         
|Cytec France SAS                            |  | France                          
|Cytec Global Holdings Inc.                  |  | Delaware                        
|Cytec Industries (Shanghai) Company Limited |  | China                           
|Cytec Industries BV                         |  | Netherlands                     
|Cytec Industries Europe C.V.                |  | Netherlands                     
|Cytec Industries France S.A.R.L.            |  | France                          
|Cytec Industries Italia S.r.l.              |  | Italy                           
|Cytec Industries Malaysia Sdn. Bhd.         |  | Malaysia                        
|Cytec Industries Pte. Ltd.                  |  | Singapore                       
|Cytec Industries (Thailand) Ltd.            |  | Thailand                        
|Cytec Industries UK Limited                 |  | England                         
|Cytec Italy S.R.L.                          |  | Italy                           
|Cytec Jamaica Limited                       |  | Jamaica                         
|Cytec Japan Limited                         |  | Delaware                        
|Cytec Korea Inc.                            |  | Delaware                        
|Cytec Latvia SIA                            |  | Latvia                          
|Cytec Melamine Inc.                         |  | New Jersey                      
|Cytec Methanol Inc.                         |  | Delaware                        



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|                                               |  |               
|---------------------------------------------- |  | --------------
|Cytec Netherlands (CRP) B.V.                   |  | Netherlands   
|Cytec Netherlands Holding B.V.                 |  | Netherlands   
|Cytec Norge (GP) AS                            |  | Norway        
|Cytec Norge KS                                 |  | Norway        
|Cytec Olean Inc.                               |  | Delaware      
|Cytec Overseas Corp.                           |  | Delaware      
|Cytec Plastics LLC                             |  | Delaware      
|Cytec Realty Corp.                             |  | Delaware      
|Cytec Surface Specialties (Shanghai) Co., Ltd. |  | China         
|Cytec Surface Specialties Germany GmbH         |  | Germany       
|Cytec Surface Specialties Holding Germany GmbH |  | Germany       
|Cytec Surface Specialties Iberica S.L.         |  | Spain         
|Cytec Surface Specialties Nordic A/S           |  | Denmark       
|Cytec Surface Specialties SA/NV                |  | Belgium       
|Cytec Surface Specialties UK Ltd               |  | United Kingdom
|Cytec Taiwan Ltd.                              |  | Taiwan        
|Cytec Taiwan Corp.                             |  | Delaware      
|Cytec Technology Corp.                         |  | Delaware      
|Cytec UK Holdings Limited                      |  | England       
|D Aircraft Products, Inc.                      |  | California    
|Garret Mountain Insurance Company              |  | Vermont       
|GSC Products, Inc.                             |  | Delaware      
|Holland LP I LLC                               |  | Delaware      
|IMC Mining Chemicals LLC                       |  | Delaware      
|M.I.O. Schoonaarde N.V.                        |  | Belgium       
|Netherlands (Cytec) GP Inc.                    |  | Delaware      
|Nihon Cytec Industries Inc.                    |  | Japan         
|Piney River Recovery Corp.                     |  | Delaware      
|Rotterdam LP II Co.                            |  | Delaware      
|Surface Specialties Canada Inc                 |  | Quebec        
|Surface Specialties Trading Malaysia Sdn. Bhd. |  | Malaysia