| Vendor | Spec | Unit | Price | Currency | Date | 
                    
                        |  | China national standards | MT | 2690.0 | USD | 20180316 | 
                    
                        |  | China national standards | MT | 1860.0 | USD | 20180315 | 
                    
                        |  | China national standards | MT | 290.0 | USD | 20180314 | 
                    
                        |  | China national standards | MT | 3460.0 | USD | 20180313 | 
                    
                        |  | China national standards | MT | 540.0 | USD | 20180312 | 
                    
                        |  | China national standards | MT | 1850.0 | USD | 20180311 | 
                    
                        |  | China national standards | MT | 2690.0 | USD | 20180301 | 
                    
                        |  | China national standards | MT | 460.0 | USD | 20180301 | 
                    
                        |  | China national standards | MT | 420.0 | USD | 20180301 | 
                    
                        |  | China national standards | MT | 290.0 | USD | 20180301 |