Exhibit 8.01

Subsidiaries of the Registrant



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|----------------------------------------------- |  | ---------------------------- |  | -------------------------------------------- |  | ----------------------------------------------------------------------------------------------
|Subsidiary                                      |  | Jurisdiction ofIncorporation |  | Name Under Which theSubsidiary Does
Business |  | Ownership Interest                                                                            
|                                                |  |                              | 
|Viva GyM S.A.                                   |  | Peru                         |  | Viva GyM                                     |  | Graña y Montero owns 63.4%; GyM owns 36.1%                                                    
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|GyM S.A.                                        |  | Peru                         |  | GyM                                          |  | Graña y Montero owns 98.2%                                                                    
|                                                |  |                              | 
|Concesionaria La Chira S.A.                     |  | Peru                         |  | La Chira                                     |  | Graña y Montero owns 50.0%                                                                    
|                                                |  |                              | 
|Concesión Canchaque S.A.                        |  | Peru                         |  | Canchaque                                    |  | Graña y Montero owns 99.96%                                                                   
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|Concar S.A.                                     |  | Peru                         |  | Concar                                       |  | Graña y Montero owns 99.8%                                                                    
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|GMP S.A.                                        |  | Peru                         |  | GMP                                          |  | Graña y Montero owns 95.0%                                                                    
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|GyM Ferrovías S.A.                              |  | Peru                         |  | GyM Ferrovías                                |  | Graña y Montero owns 75.0%                                                                    
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|Norvial S.A.                                    |  | Peru                         |  | Norvial                                      |  | Graña y Montero owns 67.0%                                                                    
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|CAM Holding SPA                                 |  | Peru                         |  | CAM Holding                                  |  | Graña y Montero owns 100%                                                                     
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|CAM Chile S.A.                                  |  | Chile                        |  | Cam                                          |  | Graña y Montero owns 73.16%                                                                   
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|Survial S.A.                                    |  | Peru                         |  | Survial                                      |  | Graña y Montero owns 99.9%                                                                    
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|GMI S.A. Ingenieros Consultores                 |  | Peru                         |  | GMI                                          |  | Graña y Montero owns 89.4%                                                                    
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|Vial y Vives  DSD S.A.                         |  | Chile                        |  | Vial y Vives                                 |  | GyM owns 94.49%                                                                               
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|Inmobiliaria Almonte S.A.C.                     |  | Peru                         |  | Almonte                                      |  | Viva GyM owns 50.45%                                                                          
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|Morelco S.A.S                                   |  | Colombia                     |  | Morelco                                      |  | GyM owns 70.0%                                                                                
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|Concesionaria Via Expresa Sur S.A.              |  | Peru                         |  | VESUR                                        |  | Graña y Montero owns 99.98%; GyM owns the remaining 0.02%                                     
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|Agenera S.A.C.                                  |  | Perú                         |  | Agenera                                      |  | Graña y Montero owns 99%; GyM owns the remaining 1%                                           
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|GyM Colombia S.A.S.                             |  | Colombia                     |  | GyM Colombia                                 |  | Graña y Montero owns 66.2%, GyM owns the remaining 33.8%                                      
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|Tecgas Inc*                                     |  | Canadá                       |  | Tecgas                                       |  | Graña y Montero owns 51%,                                                                     
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|Generadora Arabesco S.A.                        |  | Peru                         |  | Generadora Arabesco                          |  | Graña y Montero owns 99%,                                                                     
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|Adexus S.A.                                     |  | Chile                        |  | Adexus                                       |  | Graña y Montero owns 91.03%,                                                                  
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|Recaudo Lima S.A.                               |  | Perú                         |  | Recaudo Lima                                 |  | Graña y Montero owns 70%, GMD owns the remaining 30%                                          
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|CAM Servicios del Perú S.A.                     |  | Perú                         |  | CAM Servicios del Perú                       |  | Graña y Montero owns 73.16%                                                                   
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|Promotora Larco Mar S.A.                        |  | Perú                         |  | Promotora Larco Mar                          |  | Graña y Montero owns 46.55%                                                                   
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|TGNCA S.A.                                      |  | Perú                         |  | TGNCA                                        |  | Graña y Montero owns 99.93%                                                                   
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|Coasin Instalaciones Limitada                   |  | Chile                        |  | Coasin                                       |  | CAM Chile owns 99.89%, the remaining 0.11% is owned by Inversiones y Construcción GyM Limitada
|                                                |  |                              | 
|Billetera Electrónica de Transporte Lima S.A.C. |  | Perú                         |  | BETL                                         |  | Graña y Montero owns 95.5%                                                                    



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|                                          |  |                              |  |                                              |  |                            
|----------------------------------------- |  | ---------------------------- |  | -------------------------------------------- |  | ---------------------------
|Subsidiary                                |  | Jurisdiction ofIncorporation |  | Name Under Which theSubsidiary Does
Business |  | Ownership Interest         
|                                          |  |                              | 
|GyM Chile SPA                             |  | Chile                        |  | GyM Chile SPA                                |  | GyM owns 100%              
|                                          |  |                              | 
|Gestión de Soluciones Digitales S.A.C.    |  | Perú                         |  | GSD                                          |  | Graña y Montero owns 100%  
|                                          |  |                              | 
|Larcomar S.A.                             |  | Perú                         |  | Larcomar                                     |  | Graña y Montero owns 79.66%
|                                          |  |                              | 
|Promotores Asociados de Inmobiliaria S.A. |  | Perú                         |  | Promotoroes Asociados de Inmobiliaria        |  | Graña y Montero owns 99.99%
|                                          |  |                              | 
|Oiltanking Andina Services S.A.           |  | Perú                         |  | OTAS                                         |  | GMP owns 50%