| Vendor | Spec | Unit | Price | Currency | Date |
| Binzhou Dayou Energy | China national standards | MT | 658.98 | USD | 20251103 |
| Binzhou Dayou Energy | China national standards | MT | 658.86 | USD | 20251102 |
| Binzhou Dayou Energy | China national standards | MT | 658.86 | USD | 20251031 |
| Shandong Zhiheng | China national standards | MT | 658.86 | USD | 20251031 |
| Binzhou Dayou Energy | China national standards | MT | 659.01 | USD | 20251030 |
| Shandong Zhiheng | China national standards | MT | 659.01 | USD | 20251030 |
| Binzhou Dayou Energy | China national standards | MT | 659.2 | USD | 20251029 |
| Wuhan Hengjiu Chem | China national standards | MT | 659.08 | USD | 20251028 |
| Shandong Zhiheng | China national standards | MT | 659.08 | USD | 20251028 |
| Shandong Zhiheng | China national standards | MT | 658.85 | USD | 20251027 |