| Vendor | 
                        Spec | 
                        Unit | 
                        Price | 
                        Currency | 
                        Date | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        150.0 | 
                        USD | 
                        20200519 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        60.0 | 
                        USD | 
                        20200519 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        60.0 | 
                        USD | 
                        20200519 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        20.0 | 
                        USD | 
                        20200519 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        300.0 | 
                        USD | 
                        20200518 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        400.0 | 
                        USD | 
                        20200517 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        150.0 | 
                        USD | 
                        20200517 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        60.0 | 
                        USD | 
                        20200517 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        420.0 | 
                        USD | 
                        20200516 | 
                    
                    
                         | 
                        China national standards | 
                        MT | 
                        80.0 | 
                        USD | 
                        20200516 |