| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chem | China national standards | MT | 818.56 | USD | 20251028 |
| Shandong Yeyang Chem | China national standards | MT | 790.34 | USD | 20251028 |
| Shandong Yeyang Chem | China national standards | MT | 790.06 | USD | 20251027 |
| Shandong Yeyang Chem | China national standards | MT | 818.27 | USD | 20251027 |
| Shandong Yeyang Chem | China national standards | MT | 817.73 | USD | 20251025 |
| Shandong Yeyang Chem | China national standards | MT | 789.53 | USD | 20251025 |
| Shandong Yeyang Chem | China national standards | MT | 817.73 | USD | 20251024 |
| Shandong Yeyang Chem | China national standards | MT | 789.53 | USD | 20251024 |
| Shandong Yeyang Chem | China national standards | MT | 789.64 | USD | 20251023 |
| Shandong Yeyang Chem | China national standards | MT | 817.85 | USD | 20251023 |