| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 659.46 | USD | 20251117 |
| Shandong Zhiheng | China national standards | MT | 659.37 | USD | 20251114 |
| Shandong Zhiheng | China national standards | MT | 659.0 | USD | 20251113 |
| Shandong Zhiheng | China national standards | MT | 658.99 | USD | 20251111 |
| Binzhou Dayou Energy | China national standards | MT | 659.27 | USD | 20251107 |
| Shandong Zhiheng | China national standards | MT | 659.0 | USD | 20251106 |
| Binzhou Dayou Energy | China national standards | MT | 659.0 | USD | 20251106 |
| Shandong Zhiheng | China national standards | MT | 658.66 | USD | 20251105 |
| Shandong Zhiheng | China national standards | MT | 658.81 | USD | 20251104 |
| Binzhou Dayou Energy | China national standards | MT | 658.98 | USD | 20251103 |