| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 365.54 | USD | 20250919 |
| Shandong Langchem | China national standards | MT | 351.48 | USD | 20250919 |
| Shandong Langchem | China national standards | MT | 386.63 | USD | 20250919 |
| Shandong Langchem | China national standards | MT | 393.66 | USD | 20250919 |
| Shanghai Huayi | China national standards | MT | 421.77 | USD | 20250919 |
| Shandong Zhiheng | China national standards | MT | 365.54 | USD | 20250919 |
| Henan Longyu | China national standards | MT | 302.45 | USD | 20250918 |
| Henan Longyu | China national standards | MT | 302.45 | USD | 20250918 |
| Henan Longyu | China national standards | MT | 302.45 | USD | 20250918 |
| Shandong Hualu | China national standards | MT | 407.96 | USD | 20250918 |