| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 1128.75 | USD | 20251121 |
| Shandong Zhiheng | China national standards | MT | 1171.08 | USD | 20251121 |
| Shandong Yihe Chem | China national standards | MT | 987.65 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 1199.29 | USD | 20251121 |
| Shandong Zhiheng | China national standards | MT | 1128.75 | USD | 20251121 |
| Shandong Hongyang Chem | China national standards | MT | 1121.69 | USD | 20251121 |
| Shandong Yeyang Chem | China national standards | MT | 1241.62 | USD | 20251121 |
| Shandong Langchem | China national standards | MT | 1213.4 | USD | 20251121 |
| Qingdao Shengze Chem | China national standards | MT | 1072.31 | USD | 20251121 |
| Shandong Mingyu | China national standards | MT | 1213.4 | USD | 20251121 |