| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chem | China national standards | MT | 337.51 | USD | 20250827 |
| Chizhou Xinyu Chem | China national standards | MT | 351.58 | USD | 20250827 |
| Shandong Langchem | China national standards | MT | 351.58 | USD | 20250827 |
| Hebei Chuangde Tech | China national standards | MT | 386.74 | USD | 20250827 |
| Shandong Langchem | China national standards | MT | 365.64 | USD | 20250827 |
| Shandong Langchem | China national standards | MT | 386.74 | USD | 20250827 |
| Shandong Langchem | China national standards | MT | 393.77 | USD | 20250827 |
| Jiangsu SOPO | China national standards | MT | 351.58 | USD | 20250827 |
| Nanjing Baitu Chem | China national standards | MT | 351.58 | USD | 20250827 |
| Yankuang Guotai Chem | China national standards | MT | 337.14 | USD | 20250826 |