| Vendor | Spec | Unit | Price | Currency | Date | 
                    
                        |  | China national standards | MT | 7560.0 | USD | 20200201 | 
                    
                        |  | China national standards | MT | 2700.0 | USD | 20200201 | 
                    
                        |  | China national standards | MT | 390.0 | USD | 20191223 | 
                    
                        |  | China national standards | MT | 3250.0 | USD | 20191223 | 
                    
                        |  | China national standards | MT | 620.0 | USD | 20191223 | 
                    
                        |  | China national standards | MT | 460.0 | USD | 20191222 | 
                    
                        |  | China national standards | MT | 470.0 | USD | 20191222 | 
                    
                        |  | China national standards | MT | 370.0 | USD | 20191222 | 
                    
                        |  | China national standards | MT | 2900.0 | USD | 20191222 | 
                    
                        |  | China national standards | MT | 2600.0 | USD | 20191221 |