| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 1173.16 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1180.23 | USD | 20251205 |
| Shandong Jinwen Chem | China national standards | MT | 1215.56 | USD | 20251205 |
| Shandong Hongyang Chem | China national standards | MT | 1095.42 | USD | 20251205 |
| Shandong Jinling Chem | China national standards | MT | 1031.82 | USD | 20251205 |
| Shandong Jinling Chem | China national standards | MT | 1088.35 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1201.43 | USD | 20251205 |
| Befar | China national standards | MT | 890.47 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1175.99 | USD | 20251205 |
| Shandong Jinling Chem | China national standards | MT | 1243.83 | USD | 20251205 |