| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Longyu | China national standards | MT | 303.85 | USD | 20251201 |
| Shandong Shuojia Chem | China national standards | MT | 353.31 | USD | 20251201 |
| Changzhou Yihan Chem | China national standards | MT | 395.71 | USD | 20251201 |
| Henan Longyu | China national standards | MT | 331.97 | USD | 20251130 |
| Shandong Hualu | China national standards | MT | 296.66 | USD | 20251130 |
| Shandong Xingpeng Chem | China national standards | MT | 324.91 | USD | 20251130 |
| Shanghai Huayi | China national standards | MT | 423.79 | USD | 20251130 |
| Henan Longyu | China national standards | MT | 303.72 | USD | 20251130 |
| Yankuang Guotai Chem | China national standards | MT | 381.42 | USD | 20251130 |
| Henan Longyu | China national standards | MT | 303.72 | USD | 20251130 |