| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Shuntian Chem | China national standards | MT | 310.36 | USD | 20251104 |
| Shandong Shuntian Chem | China national standards | MT | 310.44 | USD | 20251103 |
| Shandong Shuntian Chem | China national standards | MT | 310.38 | USD | 20251031 |
| Shandong Shuntian Chem | China national standards | MT | 310.45 | USD | 20251030 |
| Shandong Shuntian Chem | China national standards | MT | 310.55 | USD | 20251029 |
| Shandong Shuntian Chem | China national standards | MT | 310.49 | USD | 20251028 |
| Shandong Shuntian Chem | China national standards | MT | 310.38 | USD | 20251027 |
| Shandong Shuntian Chem | China national standards | MT | 310.17 | USD | 20251024 |
| Shandong Shuntian Chem | China national standards | MT | 310.22 | USD | 20251023 |
| Shandong Shuntian Chem | China national standards | MT | 310.06 | USD | 20251022 |