| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing Runhua Chem | China national standards | MT | 1129.69 | USD | 20251117 |
| Nanjing Runhua Chem | China national standards | MT | 1129.54 | USD | 20251114 |
| Nanjing Runhua Chem | China national standards | MT | 1122.36 | USD | 20251112 |
| Nanjing Runhua Chem | China national standards | MT | 1122.31 | USD | 20251107 |
| Nanjing Runhua Chem | China national standards | MT | 1107.74 | USD | 20251106 |
| Nanjing Runhua Chem | China national standards | MT | 1104.92 | USD | 20251106 |
| Nanjing Runhua Chem | China national standards | MT | 1104.36 | USD | 20251105 |
| Nanjing Runhua Chem | China national standards | MT | 1104.89 | USD | 20251103 |
| Nanjing Runhua Chem | China national standards | MT | 1170.99 | USD | 20251031 |
| Nanjing Runhua Chem | China national standards | MT | 1170.98 | USD | 20251027 |