| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1059.49 | USD | 20251129 |
| Shandong Langchem | China national standards | MT | 1144.25 | USD | 20251128 |
| Shandong Langchem | China national standards | MT | 988.85 | USD | 20251128 |
| Shandong Langchem | China national standards | MT | 1059.49 | USD | 20251128 |
| Shandong Langchem | China national standards | MT | 1144.41 | USD | 20251127 |
| Shandong Langchem | China national standards | MT | 1059.64 | USD | 20251127 |
| Shandong Langchem | China national standards | MT | 988.99 | USD | 20251127 |
| Shandong Langchem | China national standards | MT | 1059.38 | USD | 20251126 |
| Shandong Langchem | China national standards | MT | 988.76 | USD | 20251126 |
| Shandong Langchem | China national standards | MT | 1144.13 | USD | 20251126 |