| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1065.54 | USD | 20251110 |
| Shandong Langchem | China national standards | MT | 974.08 | USD | 20251107 |
| Shandong Langchem | China national standards | MT | 1065.84 | USD | 20251107 |
| Shandong Langchem | China national standards | MT | 1065.41 | USD | 20251106 |
| Shandong Langchem | China national standards | MT | 973.68 | USD | 20251106 |
| Shandong Langchem | China national standards | MT | 1064.87 | USD | 20251105 |
| Shandong Langchem | China national standards | MT | 973.19 | USD | 20251105 |
| Shandong Langchem | China national standards | MT | 973.41 | USD | 20251104 |
| Shandong Langchem | China national standards | MT | 1065.11 | USD | 20251104 |
| Shandong Langchem | China national standards | MT | 1065.38 | USD | 20251103 |