| Vendor | Spec | Unit | Price | Currency | Date | 
                    
                        |  | China national standards | MT | 2310.0 | USD | 20190122 | 
                    
                        |  | China national standards | MT | 490.0 | USD | 20190121 | 
                    
                        |  | China national standards | MT | 340.0 | USD | 20190120 | 
                    
                        |  | China national standards | MT | 3230.0 | USD | 20190119 | 
                    
                        |  | China national standards | MT | 2210.0 | USD | 20190119 | 
                    
                        |  | China national standards | MT | 320.0 | USD | 20190117 | 
                    
                        |  | China national standards | MT | 2790.0 | USD | 20190116 | 
                    
                        |  | China national standards | MT | 470.0 | USD | 20190115 | 
                    
                        |  | China national standards | MT | 2790.0 | USD | 20190114 | 
                    
                        |  | China national standards | MT | 3440.0 | USD | 20190114 |