| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yuanhe Chem | China national standards | MT | 1058.68 | USD | 20251029 |
| Shandong Yuanhe Chem | China national standards | MT | 1100.44 | USD | 20251027 |
| Shandong Yuanhe Chem | China national standards | MT | 1099.3 | USD | 20251022 |
| Shandong Yuanhe Chem | China national standards | MT | 1098.27 | USD | 20251014 |
| Shandong Yuanhe Chem | China national standards | MT | 1097.71 | USD | 20250924 |
| Shandong Yuanhe Chem | China national standards | MT | 1097.71 | USD | 20250923 |