| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1171.21 | USD | 20251103 |
| Shandong Langchem | China national standards | MT | 1174.03 | USD | 20251103 |
| Shandong Langchem | China national standards | MT | 1170.99 | USD | 20251101 |
| Shandong Langchem | China national standards | MT | 1185.1 | USD | 20251101 |
| Shandong Langchem | China national standards | MT | 1173.81 | USD | 20251101 |
| Shandong Langchem | China national standards | MT | 1173.81 | USD | 20251101 |
| Shandong Langchem | China national standards | MT | 1173.81 | USD | 20251101 |
| Shandong Langchem | China national standards | MT | 1173.81 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1173.81 | USD | 20251031 |
| Shandong Langchem | China national standards | MT | 1185.1 | USD | 20251031 |