| Vendor | Spec | Unit | Price | Currency | Date | 
                    
                        |  | China national standards | MT | 17640.0 | USD | 20190201 | 
                    
                        |  | China national standards | MT | 120.0 | USD | 20190201 | 
                    
                        |  | China national standards | MT | 810.0 | USD | 20190122 | 
                    
                        |  | China national standards | MT | 120.0 | USD | 20190121 | 
                    
                        |  | China national standards | MT | 110.0 | USD | 20190121 | 
                    
                        |  | China national standards | MT | 120.0 | USD | 20190120 | 
                    
                        |  | China national standards | MT | 110.0 | USD | 20190120 | 
                    
                        |  | China national standards | MT | 810.0 | USD | 20190119 | 
                    
                        |  | China national standards | MT | 110.0 | USD | 20190118 | 
                    
                        |  | China national standards | MT | 4840.0 | USD | 20190117 |