| Vendor | Spec | Unit | Price | Currency | Date | 
                    
                        |  | China national standards | MT | 8370.0 | USD | 20190701 | 
                    
                        |  | China national standards | MT | 1690.0 | USD | 20190701 | 
                    
                        |  | China national standards | MT | 290.0 | USD | 20190621 | 
                    
                        |  | China national standards | MT | 360.0 | USD | 20190620 | 
                    
                        |  | China national standards | MT | 2490.0 | USD | 20190620 | 
                    
                        |  | China national standards | MT | 360.0 | USD | 20190619 | 
                    
                        |  | China national standards | MT | 1680.0 | USD | 20190619 | 
                    
                        |  | China national standards | MT | 290.0 | USD | 20190619 | 
                    
                        |  | China national standards | MT | 780.0 | USD | 20190619 | 
                    
                        |  | China national standards | MT | 1680.0 | USD | 20190618 |