| Vendor | Spec | Unit | Price | Currency | Date | 
                    
                        |  | China national standards | MT | 1220.0 | USD | 20200222 | 
                    
                        |  | China national standards | MT | 180.0 | USD | 20200220 | 
                    
                        |  | China national standards | MT | 1800.0 | USD | 20200219 | 
                    
                        |  | China national standards | MT | 170.0 | USD | 20200219 | 
                    
                        |  | China national standards | MT | 1280.0 | USD | 20200218 | 
                    
                        |  | China national standards | MT | 1220.0 | USD | 20200218 | 
                    
                        |  | China national standards | MT | 180.0 | USD | 20200217 | 
                    
                        |  | China national standards | MT | 1210.0 | USD | 20200216 | 
                    
                        |  | China national standards | MT | 170.0 | USD | 20200216 | 
                    
                        |  | China national standards | MT | 1250.0 | USD | 20200215 |