Exhibit 21.1



LIST OF IMCO RECYCLING INC. SUBSIDIARIES



Wholly owned unless otherwise indicated as of March 1, 2004.



|    |  |                                                                                                  
|--- |  | -------------------------------------------------------------------------------------------------
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|1.  |  | Alchem Aluminum, Inc., a Delaware corporation                                                    
|    | 
|2.  |  | Alchem Aluminum Shelbyville Inc., a Delaware corporation                                         
|    | 
|3.  |  | Dutch Aluminum C.V., a Dutch limited partnership                                                 
|    | 
|4.  |  | Gulf Reduction Corporation, a Delaware corporation                                               
|    | 
|5.  |  | IMCO Brazil Holding Ltda., a Brazilian limited liability company                                 
|    | 
|6.  |  | IMCO Energy Corp., a Delaware corporation                                                        
|    | 
|7.  |  | IMCO Funding Corporation, a Delaware corporation                                                 
|    | 
|8.  |  | IMCO Indiana Partnership L.P., an Indiana limited partnership                                    
|    | 
|9.  |  | IMCO International, Inc., a Delaware corporation                                                 
|    | 
|10. |  | IMCO Investment Company, a Delaware Corporation                                                  
|    | 
|11. |  | IMCO Management Partnership L.P., a Texas limited partnership                                    
|    | 
|12. |  | IMCO Operations Services Company, a Delaware corporation                                         
|    | 
|13. |  | IMCO Reciclagem de Materiais Indústria e Comércio Ltda., a Brazilian limited liability company   
|    | 
|14. |  | IMCO Reciclaje de Mexico, S. de R.L. de C.V., a Mexican limited liability company                
|    | 
|15. |  | IMCO Reciclaje de Nuevo Leon, S. de R.L. de C.V., a Mexican limited liability company            
|    | 
|16. |  | IMCO Reciclaje Servicios Administrativos, S. de R.L. de C.V., a Mexican limited liability company
|    | 
|17. |  | IMCO Reciclaje Servicios de Manufactura, S. de R.L. de C.V., a Mexican limited liability company 
|    | 
|18. |  | IMCO Recycling of California, Inc., a Delaware corporation                                       
|    | 
|19. |  | IMCO Recycling Holding B.V., a Netherlands limited liability company                             
|    | 
|20. |  | IMCO Recycling of Idaho Inc., a Delaware corporation                                             
|    | 
|21. |  | IMCO Recycling of Illinois Inc., an Illinois corporation                                         
|    | 
|22. |  | IMCO Recycling of Indiana Inc., a Delaware corporation                                           





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|    |  |                                                                                                                
|--- |  | ---------------------------------------------------------------------------------------------------------------
|    | 
|23. |  | IMCO Recycling of Michigan L.L.C., a Delaware limited liability company                                        
|    | 
|24. |  | IMCO Recycling of Ohio Inc., a Delaware corporation                                                            
|    | 
|25. |  | IMCO Recycling of Utah Inc., a Delaware corporation                                                            
|    | 
|26. |  | IMCO Recycling Services Company, a Delaware corporation                                                        
|    | 
|27. |  | IMCO Recycling (UK) Ltd., a private company limited by shares and organized under the laws of England and Wales
|    | 
|28. |  | IMSAMET, Inc., a Delaware corporation                                                                          
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|29. |  | Imsamet of Arizona, an Arizona partnership (70%)                                                               
|    | 
|30. |  | Indiana Aluminum Inc., an Indiana corporation                                                                  
|    | 
|31. |  | Interamerican Zinc, Inc., a Delaware corporation                                                               
|    | 
|32. |  | MetalChem Handel GmbH, a German limited liability company                                                      
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|33. |  | MetalChem, Inc., a Pennsylvania corporation                                                                    
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|34. |  | Midwest Zinc Corporation, a Delaware corporation                                                               
|    | 
|35. |  | Pittsburg Aluminum, Inc., a Kansas corporation                                                                 
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|36. |  | Rock Creek Aluminum, Inc., an Ohio corporation                                                                 
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|37. |  | Solar Aluminum Technology Services, a Utah partnership (50%)                                                   
|    | 
|38. |  | U.S. Zinc Corporation, a Delaware corporation                                                                  
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|39. |  | U.S. Zinc Export Corporation, a Texas corporation                                                              
|    | 
|40. |  | VAW-IMCO Guß und Recycling GmbH, a German limited liability company                                            
|    | 
|41. |  | Western Zinc Corporation, a California corporation                                                             



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