| Vendor | Spec | Unit | Price | Currency | Date | 
                    
                        |  | China national standards | MT | 3280.0 | USD | 20190620 | 
                    
                        |  | China national standards | MT | 650.0 | USD | 20190619 | 
                    
                        |  | China national standards | MT | 2730.0 | USD | 20190619 | 
                    
                        |  | China national standards | MT | 3270.0 | USD | 20190615 | 
                    
                        |  | China national standards | MT | 500.0 | USD | 20190612 | 
                    
                        |  | China national standards | MT | 480.0 | USD | 20190611 | 
                    
                        |  | China national standards | MT | 2990.0 | USD | 20190611 | 
                    
                        |  | China national standards | MT | 460.0 | USD | 20190610 | 
                    
                        |  | China national standards | MT | 3160.0 | USD | 20190610 | 
                    
                        |  | China national standards | MT | 3010.0 | USD | 20190601 |