Exhibit 21.1

LIST OF SUBSIDIARIES OF CONSTELLIUM N.V.



|                                                                                       |  |                              
|-------------------------------------------------------------------------------------- |  | -----------------------------
|Name                                                                                   |  | Jurisdiction of Incorporation
|Alabama Electric Motor Services, LLC                                                   |  | Delaware                     
|                                                                                       | 
|Alcan International Network (Thailand) Co. Ltd.                                        |  | Thailand                     
|                                                                                       | 
|Alcan International Network México S.A. de C.V.                                        |  | Mexico                       
|                                                                                       | 
|Alcan International Network Portugal  Importações e Exportações,
Lda.  Em Liquidação |  | Portugal                     
|                                                                                       | 
|Astrex Inc.                                                                            |  | Canada                       
|                                                                                       | 
|Constellium Automotive México, S. DE R.L. DE C.V.                                      |  | Mexico                       
|                                                                                       | 
|Constellium Automotive México Trading, S. DE R.L. DE C.V.                              |  | Mexico                       
|                                                                                       | 
|Constellium Automotive USA, LLC                                                        |  | Delaware                     
|                                                                                       | 
|Constellium China                                                                      |  | China                        
|                                                                                       | 
|Constellium Deutschland GmbH                                                           |  | Germany                      
|                                                                                       | 
|Constellium Engley (Changchun) Automotive Structures Co Ltd.                           |  | China                        
|                                                                                       | 
|Constellium Extrusions Burg GmbH                                                       |  | Germany                      
|                                                                                       | 
|Constellium Extrusions Decin s.r.o.                                                    |  | Czech Republic               
|                                                                                       | 
|Constellium Extrusions Deutschland GmbH                                                |  | Germany                      
|                                                                                       | 
|Constellium Extrusions France                                                          |  | France                       
|                                                                                       | 
|Constellium Extrusions Landau GmbH                                                     |  | Germany                      
|                                                                                       | 
|Constellium Extrusions Levice S.r.o.                                                   |  | Slovak Republic              
|                                                                                       | 
|Constellium Finance                                                                    |  | France                       
|                                                                                       | 
|Constellium France Holdco                                                              |  | France                       
|                                                                                       | 
|Constellium France III                                                                 |  | France                       
|                                                                                       | 
|Constellium Germany Holdco GmbH & Co. KG                                               |  | Germany                      
|                                                                                       | 
|Constelium Germany Verwaltungs GmbH                                                    |  | Germany                      
|                                                                                       | 
|Constellium Holdco II B.V.                                                             |  | Netherlands                  
|                                                                                       | 
|Constellium Holdco III B.V.                                                            |  | Netherlands                  
|                                                                                       | 
|Constellium Issoire                                                                    |  | France                       
|                                                                                       | 
|Constellium Italy S.p.A.                                                               |  | Italy                        
|                                                                                       | 
|Constellium Japan KK                                                                   |  | Japan                        
|                                                                                       | 
|Constellium Metal Procurement LLC                                                      |  | Delaware                     
|                                                                                       | 
|Constellium Montreuil Juigné                                                           |  | France                       
|                                                                                       | 
|Constellium Neuf Brisach                                                               |  | France                       
|                                                                                       | 
|Constellium Paris                                                                      |  | France                       
|                                                                                       | 
|Constellium Property and Equipment Company, LLC                                        |  | Delaware                     
|                                                                                       | 
|Constellium Rolled Products Ravenswood, LLC                                            |  | Delaware                     



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|                                                                 |  |               
|---------------------------------------------------------------- |  | --------------
|Constellium Rolled Products Singen GmbH & Co. KG                 |  | Germany       
|                                                                 | 
|Constellium Singen GmbH                                          |  | Germany       
|                                                                 | 
|Constellium Southeast Asia PTE. LTD.                             |  | Singapore     
|                                                                 | 
|Constellium Switzerland AG                                       |  | Switzerland   
|                                                                 | 
|Constellium-UACJ ABS LLC (formerly known as Quiver Ventures LLC) |  | Delaware      
|                                                                 | 
|Constellium Treuhand UG (haftunsgbeschränkt)                     |  | Germany       
|                                                                 | 
|Constellium UK Limited                                           |  | United Kingdom
|                                                                 | 
|Constellium US Holdings I, LLC                                   |  | Delaware      
|                                                                 | 
|Constellium US Holdings II, LLC                                  |  | Delaware      
|                                                                 | 
|Constellium Ussel                                                |  | France        
|                                                                 | 
|Constellium Valais SA                                            |  | Switzerland   
|                                                                 | 
|Constellium W                                                    |  | France        
|                                                                 | 
|C-TEC Constellium Technology Center                              |  | France        
|                                                                 | 
|Engineered Products International SAS                            |  | France        
|                                                                 | 
|Listerhill Total Maintenance Center LLC                          |  | Delaware      
|                                                                 | 
|Wise Alloys Finance Corporation                                  |  | Delaware      
|                                                                 | 
|Wise Alloys LLC                                                  |  | Delaware      
|                                                                 | 
|Wise Alloys Funding LLC                                          |  | Delaware      
|                                                                 | 
|Wise Alloys Funding II LLC                                       |  | Delaware      
|                                                                 | 
|Wise Holdings Finance Corporation                                |  | Delaware      
|                                                                 | 
|Wise Metals Group LLC                                            |  | Delaware      
|                                                                 | 
|Wise Metals Intermediate Holdings LLC                            |  | Delaware      



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