| Vendor | 
                        Spec | 
                        Unit | 
                        Price | 
                        Currency | 
                        Date | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        820.0 | 
                        USD | 
                        20200501 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        300.0 | 
                        USD | 
                        20200501 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        240.0 | 
                        USD | 
                        20200501 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        220.0 | 
                        USD | 
                        20200501 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        1140.0 | 
                        USD | 
                        20200422 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        1680.0 | 
                        USD | 
                        20200420 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        230.0 | 
                        USD | 
                        20200420 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        11770.0 | 
                        USD | 
                        20200418 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        1580.0 | 
                        USD | 
                        20200418 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        1150.0 | 
                        USD | 
                        20200417 |