| Vendor | 
                        Spec | 
                        Unit | 
                        Price | 
                        Currency | 
                        Date | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        150.0 | 
                        USD | 
                        20200514 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        40.0 | 
                        USD | 
                        20200514 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        20.0 | 
                        USD | 
                        20200513 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        590.0 | 
                        USD | 
                        20200512 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        590.0 | 
                        USD | 
                        20200512 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        20.0 | 
                        USD | 
                        20200512 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        20.0 | 
                        USD | 
                        20200512 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        20.0 | 
                        USD | 
                        20200512 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        20.0 | 
                        USD | 
                        20200511 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        410.0 | 
                        USD | 
                        20200510 |