| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 1017.02 | USD | 20250821 |
| Qingdao Shengze Chem | China national standards | MT | 1017.02 | USD | 20250821 |
| Shandong Laya Chem | China national standards | MT | 995.97 | USD | 20250821 |
| Shandong Xima | China national standards | MT | 981.95 | USD | 20250821 |
| Shandong Fusheng | China national standards | MT | 1122.22 | USD | 20250821 |
| Shandong Fusheng | China national standards | MT | 1052.09 | USD | 20250821 |
| Shandong Qiangsen Chem | China national standards | MT | 981.95 | USD | 20250821 |
| Shandong Langchem | China national standards | MT | 1101.18 | USD | 20250821 |
| Shandong Langchem | China national standards | MT | 1276.53 | USD | 20250821 |
| Shandong Langchem | China national standards | MT | 1248.47 | USD | 20250821 |