| Vendor | Spec | Unit | Price | Currency | Date | 
                    
                        |  | China national standards | MT | 160.0 | USD | 20190301 | 
                    
                        |  | China national standards | MT | 2610.0 | USD | 20190301 | 
                    
                        |  | China national standards | MT | 120.0 | USD | 20190223 | 
                    
                        |  | China national standards | MT | 990.0 | USD | 20190221 | 
                    
                        |  | China national standards | MT | 140.0 | USD | 20190219 | 
                    
                        |  | China national standards | MT | 100.0 | USD | 20190218 | 
                    
                        |  | China national standards | MT | 810.0 | USD | 20190217 | 
                    
                        |  | China national standards | MT | 650.0 | USD | 20190213 | 
                    
                        |  | China national standards | MT | 100.0 | USD | 20190212 | 
                    
                        |  | China national standards | MT | 140.0 | USD | 20190212 |