| Vendor | Spec | Unit | Price | Currency | Date | 
                    
                        |  | China national standards | MT | 5070.0 | USD | 20190501 | 
                    
                        |  | China national standards | MT | 3380.0 | USD | 20190501 | 
                    
                        |  | China national standards | MT | 750.0 | USD | 20190501 | 
                    
                        |  | China national standards | MT | 890.0 | USD | 20190501 | 
                    
                        |  | China national standards | MT | 620.0 | USD | 20190422 | 
                    
                        |  | China national standards | MT | 480.0 | USD | 20190421 | 
                    
                        |  | China national standards | MT | 3200.0 | USD | 20190420 | 
                    
                        |  | China national standards | MT | 370.0 | USD | 20190420 | 
                    
                        |  | China national standards | MT | 370.0 | USD | 20190419 | 
                    
                        |  | China national standards | MT | 5040.0 | USD | 20190418 |