| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Chem | China national standards | MT | 845.39 | USD | 20251020 |
| Shandong Xingpeng Chem | China national standards | MT | 845.68 | USD | 20251019 |
| Shandong Xingpeng Chem | China national standards | MT | 845.13 | USD | 20251015 |
| Shandong Xingpeng Chem | China national standards | MT | 844.5 | USD | 20251011 |
| Shandong Xingpeng Chem | China national standards | MT | 844.5 | USD | 20251010 |
| Shandong Xingpeng Chem | China national standards | MT | 844.42 | USD | 20251007 |
| Shandong Xingpeng Chem | China national standards | MT | 844.42 | USD | 20251006 |
| Shandong Xingpeng Chem | China national standards | MT | 844.42 | USD | 20251005 |
| Shandong Xingpeng Chem | China national standards | MT | 844.42 | USD | 20251003 |
| Shandong Xingpeng Chem | China national standards | MT | 844.01 | USD | 20250929 |