| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1298.57 | USD | 20251124 |
| Shandong Langchem | China national standards | MT | 1333.86 | USD | 20251124 |
| Shandong Langchem | China national standards | MT | 1298.06 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 1333.33 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 1297.51 | USD | 20251120 |
| Shandong Langchem | China national standards | MT | 1332.77 | USD | 20251120 |
| Shandong Langchem | China national standards | MT | 1333.39 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 1298.11 | USD | 20251119 |
| Shandong Langchem | China national standards | MT | 1298.41 | USD | 20251118 |
| Shandong Langchem | China national standards | MT | 1333.69 | USD | 20251118 |