| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1059.73 | USD | 20251209 |
| Shandong Langchem | China national standards | MT | 1144.5 | USD | 20251209 |
| Shandong Langchem | China national standards | MT | 1059.86 | USD | 20251208 |
| Shandong Langchem | China national standards | MT | 989.2 | USD | 20251208 |
| Shandong Langchem | China national standards | MT | 1060.09 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1144.89 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 989.41 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1060.33 | USD | 20251204 |
| Shandong Langchem | China national standards | MT | 1145.15 | USD | 20251204 |
| Shandong Langchem | China national standards | MT | 989.64 | USD | 20251204 |