| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chem | China national standards | MT | 1104.78 | USD | 20251216 |
| Shandong Yeyang Chem | China national standards | MT | 1103.47 | USD | 20251211 |
| Shandong Yeyang Chem | China national standards | MT | 1102.43 | USD | 20251210 |
| Shandong Yeyang Chem | China national standards | MT | 1101.87 | USD | 20251129 |
| Shandong Yeyang Chem | China national standards | MT | 1101.76 | USD | 20251126 |
| Shandong Yeyang Chem | China national standards | MT | 1101.29 | USD | 20251125 |
| Shandong Yeyang Chem | China national standards | MT | 1100.96 | USD | 20251124 |
| Shandong Yeyang Chem | China national standards | MT | 1100.53 | USD | 20251121 |
| Shandong Yeyang Chem | China national standards | MT | 1100.06 | USD | 20251120 |
| Shandong Yeyang Chem | China national standards | MT | 1100.58 | USD | 20251119 |