| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chem | China national standards | MT | 351.69 | USD | 20250918 |
| Chizhou Xinyu Chem | China national standards | MT | 407.96 | USD | 20250918 |
| Shandong Zhenkun | China national standards | MT | 422.03 | USD | 20250918 |
| Shandong Hualu | China national standards | MT | 422.03 | USD | 20250918 |
| Shandong Zhenkun | China national standards | MT | 393.89 | USD | 20250918 |
| Shanghai Huayi | China national standards | MT | 422.03 | USD | 20250918 |
| Shandong Zhiheng | China national standards | MT | 365.76 | USD | 20250918 |
| Changzhou Qidi Chem | China national standards | MT | 323.56 | USD | 20250918 |
| Changzhou Qidi Chem | China national standards | MT | 323.56 | USD | 20250918 |
| Hebei Chuangde Tech | China national standards | MT | 387.25 | USD | 20250917 |