| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yaoming Chem | China national standards | MT | 303.96 | USD | 20251204 |
| Shandong Xingpeng Chem | China national standards | MT | 325.17 | USD | 20251204 |
| Shandong Langchem | China national standards | MT | 353.44 | USD | 20251204 |
| Shandong Langchem | China national standards | MT | 367.58 | USD | 20251204 |
| Shandong Langchem | China national standards | MT | 388.79 | USD | 20251204 |
| Henan Longyu | China national standards | MT | 303.96 | USD | 20251204 |
| Shandong Xingpeng Chem | China national standards | MT | 325.17 | USD | 20251204 |
| Henan Longyu | China national standards | MT | 303.96 | USD | 20251204 |
| Yankuang Guotai Chem | China national standards | MT | 325.17 | USD | 20251204 |
| Shandong Hualu | China national standards | MT | 409.99 | USD | 20251204 |