| Vendor | Spec | Unit | Price | Currency | Date | 
                    
                        |  | China national standards | MT | 320.0 | USD | 20190113 | 
                    
                        |  | China national standards | MT | 2310.0 | USD | 20190112 | 
                    
                        |  | China national standards | MT | 2210.0 | USD | 20190111 | 
                    
                        |  | China national standards | MT | 2780.0 | USD | 20190111 | 
                    
                        |  | China national standards | MT | 3210.0 | USD | 20190110 | 
                    
                        |  | China national standards | MT | 2300.0 | USD | 20190110 | 
                    
                        |  | China national standards | MT | 2280.0 | USD | 20190101 | 
                    
                        |  | China national standards | MT | 2310.0 | USD | 20190101 | 
                    
                        |  | China national standards | MT | 3390.0 | USD | 20190101 | 
                    
                        |  | China national standards | MT | 2750.0 | USD | 20190101 |