| Vendor | Spec | Unit | Price | Currency | Date | 
                    
                        |  | China national standards | MT | 3450.0 | USD | 20180101 | 
                    
                        |  | China national standards | MT | 2610.0 | USD | 20180101 | 
                    
                        |  | China national standards | MT | 3450.0 | USD | 20180101 | 
                    
                        |  | China national standards | MT | 1830.0 | USD | 20180101 | 
                    
                        |  | China national standards | MT | 410.0 | USD | 20171223 | 
                    
                        |  | China national standards | MT | 2670.0 | USD | 20171222 | 
                    
                        |  | China national standards | MT | 400.0 | USD | 20171222 | 
                    
                        |  | China national standards | MT | 410.0 | USD | 20171221 | 
                    
                        |  | China national standards | MT | 260.0 | USD | 20171219 | 
                    
                        |  | China national standards | MT | 360.0 | USD | 20171218 |