| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chem | China national standards | MT | 335.69 | USD | 20250731 |
| Chizhou Xinyu Chem | China national standards | MT | 419.62 | USD | 20250731 |
| Nanjing Baitu Chem | China national standards | MT | 419.62 | USD | 20250731 |
| Jiangsu SOPO | China national standards | MT | 419.62 | USD | 20250731 |
| Shandong Langchem | China national standards | MT | 391.64 | USD | 20250731 |
| Shandong Langchem | China national standards | MT | 384.65 | USD | 20250731 |
| Hebei Chuangde Tech | China national standards | MT | 384.65 | USD | 20250731 |
| Shandong Langchem | China national standards | MT | 349.68 | USD | 20250731 |
| Shandong Langchem | China national standards | MT | 363.67 | USD | 20250731 |
| Yankuang Guotai Chem | China national standards | MT | 335.94 | USD | 20250730 |