| Vendor | Spec | Unit | Price | Currency | Date |
| Binzhou Dayou Energy | China national standards | MT | 657.22 | USD | 20250924 |
| Shandong Zhiheng | China national standards | MT | 657.22 | USD | 20250923 |
| Binzhou Dayou Energy | China national standards | MT | 657.22 | USD | 20250923 |
| Shandong Zhiheng | China national standards | MT | 656.77 | USD | 20250922 |
| Binzhou Dayou Energy | China national standards | MT | 656.77 | USD | 20250922 |
| Binzhou Dayou Energy | China national standards | MT | 656.56 | USD | 20250920 |
| Shandong Zhiheng | China national standards | MT | 656.56 | USD | 20250919 |
| Shandong Zhiheng | China national standards | MT | 656.96 | USD | 20250918 |
| Binzhou Dayou Energy | China national standards | MT | 656.96 | USD | 20250918 |
| Binzhou Dayou Energy | China national standards | MT | 657.63 | USD | 20250917 |