EXHIBIT 21.1



i2 TECHNOLOGIES, INC.

LIST OF SUBSIDIARIES



|i2 Technologies Pty Ltd                      |  | Australia           
|-------------------------------------------- |  | --------------------
|Trade Service (Australia) Pty Limited        |  | Australia           
|i2 Technologies N.V.                         |  | Belgium             
|i2 Technologies do Brasil Ltda.              |  | Brazil              
|i2 Technologies (Canada), Inc.               |  | Canada              
|Trade Service Information Incorporated       |  | Canada              
|i2 Technologies (Cayman Islands) Ltd.        |  | Cayman Islands      
|i2 Technologies China Ltd.                   |  | China               
|Beijing i2 Technologies Company Ltd.         |  | China               
|i2 Technologies A/S                          |  | Denmark             
|i2 Technologies Finland Oy Ltd.              |  | Finland             
|Aspect Development SARL                      |  | France              
|i2 Technologies SARL                         |  | France              
|Aspect Development Germany GmbH              |  | Germany             
|i2 Technologies, GMBH                        |  | Germany             
|Aspect Development India Private Limited     |  | India               
|i2 Technologies India Private Limited        |  | India               
|i2 Technologies S.r.l.                       |  | Italy               
|Aspect Development K.K.                      |  | Japan               
|i2 Technologies Japan, Inc.                  |  | Japan               
|i2 Technologies Korea, Ltd.                  |  | Korea               
|i2 Technologies (Malaysia) Sdn Bhd           |  | Malaysia            
|i2 de Mexico S. de R.L.C.V.                  |  | Mexico              
|Aspect Development B.V.                      |  | Netherlands         
|i2 Technologies (Netherlands) B.V.           |  | Netherlands         
|i2 Technologies (N.A.) N.V.                  |  | Netherlands Antilles
|i2 Technologies PTE Ltd.                     |  | Singapore           
|MStar SA (Pty) Ltd.                          |  | South Africa        
|i2 Technologies SL                           |  | Spain               
|i2 Technologies Sweden AB                    |  | Sweden              
|i2 Technologies (Schweiz) GmbH               |  | Switzerland         
|Aspect Development Schweiz GmbH              |  | Switzerland         
|i2 Technologies Taiwan, Inc.                 |  | Taiwan              
|Aspect Development Europe Ltd.               |  | United Kingdom      
|i2 Technologies Limited                      |  | United Kingdom      
|ec-Content, Inc.                             |  | California          
|RightWorks Corporation                       |  | California          
|Trade Service Corporation                    |  | California          
|Aspect Development International, Inc.       |  | Delaware            
|i2 Technologies International Services, Inc. |  | Delaware            
|i2 Technologies, Limited                     |  | Delaware            
|FreightMatrix.com, Inc.                      |  | Delaware            
|i2 Federal, Inc.                             |  | Delaware            
|i2 Technologies US, Inc.                     |  | Nevada