| Vendor | Spec | Unit | Price | Currency | Date | 
                    
                        |  | China national standards | MT | 4200.0 | USD | 20170823 | 
                    
                        |  | China national standards | MT | 4270.0 | USD | 20170821 | 
                    
                        |  | China national standards | MT | 4320.0 | USD | 20170820 | 
                    
                        |  | China national standards | MT | 1350.0 | USD | 20170816 | 
                    
                        |  | China national standards | MT | 1350.0 | USD | 20170816 | 
                    
                        |  | China national standards | MT | 640.0 | USD | 20170814 | 
                    
                        |  | China national standards | MT | 630.0 | USD | 20170812 | 
                    
                        |  | China national standards | MT | 9020.0 | USD | 20170811 | 
                    
                        |  | China national standards | MT | 620.0 | USD | 20170810 | 
                    
                        |  | China national standards | MT | 4160.0 | USD | 20170801 |