| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | China national standards | MT | 232.8 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 359.79 | USD | 20251121 |
| Shandong Jinling Chem | China national standards | MT | 338.62 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 359.79 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 331.57 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 345.68 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 380.95 | USD | 20251121 |
| Luxi Chem | China national standards | MT | 310.41 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 352.73 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 366.84 | USD | 20251121 |