| Vendor | Spec | Unit | Price | Currency | Date | 
                    
                        |  | China national standards | MT | 30.0 | USD | 20200301 | 
                    
                        |  | China national standards | MT | 80.0 | USD | 20200301 | 
                    
                        |  | China national standards | MT | 310.0 | USD | 20200222 | 
                    
                        |  | China national standards | MT | 800.0 | USD | 20200222 | 
                    
                        |  | China national standards | MT | 120.0 | USD | 20200222 | 
                    
                        |  | China national standards | MT | 30.0 | USD | 20200220 | 
                    
                        |  | China national standards | MT | 30.0 | USD | 20200218 | 
                    
                        |  | China national standards | MT | 470.0 | USD | 20200216 | 
                    
                        |  | China national standards | MT | 30.0 | USD | 20200215 | 
                    
                        |  | China national standards | MT | 120.0 | USD | 20200214 |