| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang LunanChem | China national standards | MT | 475.9 | USD | 20260508 |
| Yankuang LunanChem | China national standards | MT | 476.0 | USD | 20260507 |
| Yankuang LunanChem | China national standards | MT | 475.48 | USD | 20260506 |
| Yankuang LunanChem | China national standards | MT | USD | 20260430 | |
| Yankuang LunanChem | China national standards | MT | USD | 20260429 | |
| Yankuang LunanChem | China national standards | MT | USD | 20260428 | |
| Yankuang LunanChem | China national standards | MT | USD | 20260427 | |
| Yankuang LunanChem | China national standards | MT | USD | 20260424 | |
| Yankuang LunanChem | China national standards | MT | USD | 20260423 | |
| Yankuang LunanChem | China national standards | MT | USD | 20260422 |