| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chem | China national standards | MT | 1151.47 | USD | 20251127 |
| Shandong Langchem | China national standards | MT | 1175.49 | USD | 20251127 |
| Shandong Langchem | China national standards | MT | 1175.49 | USD | 20251127 |
| Shandong Yeyang Chem | China national standards | MT | 1144.41 | USD | 20251127 |
| Qingdao Shengze Chem | China national standards | MT | 1596.14 | USD | 20251126 |
| Qingdao Shengze Chem | China national standards | MT | 1596.14 | USD | 20251126 |
| Qingdao Shengze Chem | China national standards | MT | 1596.14 | USD | 20251126 |
| Qingdao Shengze Chem | China national standards | MT | 1596.14 | USD | 20251126 |
| Shandong Qiangsen Chem | China national standards | MT | 1059.38 | USD | 20251126 |
| Shandong Haili Chem | China national standards | MT | 1737.39 | USD | 20251126 |