| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 367.5 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 367.5 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 388.7 | USD | 20251205 |
| Henan Longyu | China national standards | MT | 303.89 | USD | 20251205 |
| Yankuang Guotai Chem | China national standards | MT | 353.36 | USD | 20251205 |
| Shandong Jinshenrun Chem | China national standards | MT | 395.77 | USD | 20251205 |
| Hebei Chuangde Tech | China national standards | MT | 388.7 | USD | 20251205 |
| Henan Longyu | China national standards | MT | 303.89 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 395.77 | USD | 20251205 |
| Henan Longyu | China national standards | MT | 303.89 | USD | 20251205 |