| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chem | China national standards | MT | 324.89 | USD | 20251202 |
| Shandong Hualu | China national standards | MT | 423.76 | USD | 20251202 |
| Shandong Langchem | China national standards | MT | 395.51 | USD | 20251202 |
| Shandong Zhiheng | China national standards | MT | 367.26 | USD | 20251202 |
| Chengdu Rongjiaxin Chem | Industrial Grade | MT | 536.77 | USD | 20251202 |
| Shandong Zhiheng | China national standards | MT | 367.44 | USD | 20251201 |
| Shandong Zhenkun | China national standards | MT | 423.97 | USD | 20251201 |
| Yankuang Guotai Chem | China national standards | MT | 353.31 | USD | 20251201 |
| Chizhou Xinyu Chem | China national standards | MT | 409.84 | USD | 20251201 |
| Suzhou Shangma Chem | China national standards | MT | 395.71 | USD | 20251201 |