| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 973.48 | USD | 20251101 |
| Shandong Langchem | China national standards | MT | 1065.18 | USD | 20251101 |
| Shandong Langchem | China national standards | MT | 1065.18 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1065.18 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 973.48 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 973.48 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 973.7 | USD | 20251030 |
| Shandong Langchem | China national standards | MT | 1065.42 | USD | 20251030 |
| Shandong Langchem | China national standards | MT | 1065.74 | USD | 20251029 |
| Shandong Langchem | China national standards | MT | 973.98 | USD | 20251029 |