| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1262.84 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 1397.2 | USD | 20251118 |
| Shandong Langchem | China national standards | MT | 1256.07 | USD | 20251118 |
| Shandong Langchem | China national standards | MT | 1263.13 | USD | 20251118 |
| Shandong Langchem | China national standards | MT | 1213.73 | USD | 20251118 |
| Shandong Langchem | China national standards | MT | 1214.41 | USD | 20251117 |
| Shandong Langchem | China national standards | MT | 1263.84 | USD | 20251117 |
| Shandong Langchem | China national standards | MT | 1256.78 | USD | 20251117 |
| Shandong Langchem | China national standards | MT | 1397.99 | USD | 20251117 |
| Shandong Langchem | China national standards | MT | 1256.62 | USD | 20251115 |