| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | China national standards | MT | 800.26 | USD | 20251216 |
| Shandong Yihe Chem | China national standards | MT | 807.34 | USD | 20251216 |
| Shandong Yihe Chem | China national standards | MT | 799.31 | USD | 20251211 |
| Shandong Yihe Chem | China national standards | MT | 806.38 | USD | 20251211 |
| Shandong Yihe Chem | China national standards | MT | 798.55 | USD | 20251210 |
| Shandong Yihe Chem | China national standards | MT | 805.39 | USD | 20251209 |
| Shandong Yihe Chem | China national standards | MT | 798.33 | USD | 20251209 |
| Shandong Yihe Chem | China national standards | MT | 798.43 | USD | 20251208 |
| Shandong Yihe Chem | China national standards | MT | 805.49 | USD | 20251208 |
| Shandong Yihe Chem | China national standards | MT | 798.6 | USD | 20251207 |