| Vendor | Spec | Unit | Price | Currency | Date | 
                    
                        |  | China national standards | MT | 240.0 | USD | 20200901 | 
                    
                        |  | China national standards | MT | 410.0 | USD | 20200901 | 
                    
                        |  | China national standards | MT | 1340.0 | USD | 20200521 | 
                    
                        |  | China national standards | MT | 1600.0 | USD | 20200521 | 
                    
                        |  | China national standards | MT | 1520.0 | USD | 20200521 | 
                    
                        |  | China national standards | MT | 1340.0 | USD | 20200520 | 
                    
                        |  | China national standards | MT | 190.0 | USD | 20200518 | 
                    
                        |  | China national standards | MT | 230.0 | USD | 20200517 | 
                    
                        |  | China national standards | MT | 230.0 | USD | 20200514 | 
                    
                        |  | China national standards | MT | 180.0 | USD | 20200513 |