| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jiaen Chem | China national standards | MT | 400.81 | USD | 20250922 |
| Hualu Holdings | China national standards | MT | 414.87 | USD | 20250922 |
| Shandong Shuojia Chem | China national standards | MT | 365.65 | USD | 20250922 |
| Shandong Hualu | China national standards | MT | 365.65 | USD | 20250922 |
| Yankuang Guotai Chem | China national standards | MT | 365.65 | USD | 20250922 |
| Shandong Shuojia Chem | China national standards | MT | 365.65 | USD | 20250922 |
| Shandong Shuojia Chem | China national standards | MT | 337.52 | USD | 20250922 |
| Shandong Shuojia Chem | China national standards | MT | 337.52 | USD | 20250922 |
| Yankuang Guotai Chem | China national standards | MT | 337.52 | USD | 20250922 |
| Yankuang Guotai Chem | China national standards | MT | 351.59 | USD | 20250922 |