| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Longyu | China national standards | MT | 304.16 | USD | 20251211 |
| Shandong Hualu | China national standards | MT | 297.09 | USD | 20251211 |
| Yankuang Guotai Chem | China national standards | MT | 353.68 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 353.68 | USD | 20251211 |
| Yankuang Guotai Chem | China national standards | MT | 325.38 | USD | 20251211 |
| Shandong Zhenkun | China national standards | MT | 396.12 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 367.82 | USD | 20251211 |
| Yankuang Guotai Chem | China national standards | MT | 325.38 | USD | 20251211 |
| Shandong Yaoming Chem | China national standards | MT | 325.38 | USD | 20251211 |
| Hebei Pengfa Chem | China national standards | MT | 316.89 | USD | 20251211 |