| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 1257.13 | USD | 20251126 |
| Shandong Hualu | China national standards | MT | 946.38 | USD | 20251126 |
| Shandong Hongyang Chem | China national standards | MT | 1130.01 | USD | 20251126 |
| Shandong Yuanhe Chem | China national standards | MT | 1073.51 | USD | 20251126 |
| Liaocheng Yuanze Chem | China national standards | MT | 875.76 | USD | 20251126 |
| Shandong Langchem | China national standards | MT | 1101.29 | USD | 20251125 |
| Shandong Langchem | China national standards | MT | 1256.6 | USD | 20251125 |
| Shandong Langchem | China national standards | MT | 1080.11 | USD | 20251125 |
| Shandong Langchem | China national standards | MT | 1101.29 | USD | 20251125 |
| Nanjing Baitu Chem | China national standards | MT | 1087.17 | USD | 20251125 |