| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 1512.39 | USD | 20251205 |
| Shandong Shuojia Chem | China national standards | MT | 1568.93 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1173.16 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1175.99 | USD | 20251205 |
| Shandong Hongyang Chem | China national standards | MT | 1130.76 | USD | 20251205 |
| Shandong Hongyang Chem | China national standards | MT | 1130.76 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1175.99 | USD | 20251205 |
| Shandong Qiangsen Chem | China national standards | MT | 1060.09 | USD | 20251205 |
| Shandong Shuojia Chem | China national standards | MT | 1568.93 | USD | 20251205 |
| Shandong Mingyu | China national standards | MT | 1696.14 | USD | 20251205 |