| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 988.34 | USD | 20251125 |
| Shandong Langchem | China national standards | MT | 1143.65 | USD | 20251125 |
| Shandong Langchem | China national standards | MT | 1058.93 | USD | 20251125 |
| Shandong Langchem | China national standards | MT | 1143.31 | USD | 20251124 |
| Shandong Langchem | China national standards | MT | 988.04 | USD | 20251124 |
| Shandong Langchem | China national standards | MT | 1058.62 | USD | 20251124 |
| Shandong Langchem | China national standards | MT | 987.65 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 1058.2 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 1142.86 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 1142.37 | USD | 20251120 |