| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hualu | China national standards | MT | 411.13 | USD | 20260225 |
| Shandong Hualu | China national standards | MT | 406.12 | USD | 20260211 |
| Shandong Hualu | China national standards | MT | 402.25 | USD | 20260203 |
| Shandong Hualu | China national standards | MT | 404.62 | USD | 20260202 |
| Shandong Hualu | China national standards | MT | 404.58 | USD | 20260109 |
| Yankuang Guotai Chem | China national standards | MT | 381.78 | USD | 20260109 |
| Shandong Hualu | China national standards | MT | 404.58 | USD | 20260109 |
| Shandong Hualu | China national standards | MT | 404.58 | USD | 20260109 |
| Shandong Hualu | China national standards | MT | 401.73 | USD | 20260108 |
| Shandong Hualu | China national standards | MT | 401.73 | USD | 20260108 |