| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chem | China national standards | MT | 998.99 | USD | 20250901 |
| Shandong Fusheng | China national standards | MT | 1055.27 | USD | 20250901 |
| Shandong Fusheng | China national standards | MT | 1125.62 | USD | 20250901 |
| Qingdao Shengze Chem | China national standards | MT | 1013.66 | USD | 20250831 |
| Qingdao Shengze Chem | China national standards | MT | 1013.66 | USD | 20250830 |
| Shandong Xima | China national standards | MT | 985.5 | USD | 20250830 |
| Shandong Qiangsen Chem | China national standards | MT | 985.5 | USD | 20250830 |
| Shandong Laya Chem | China national standards | MT | 999.58 | USD | 20250830 |
| Qingdao Shengze Chem | China national standards | MT | 1013.66 | USD | 20250829 |
| Shandong Fusheng | China national standards | MT | 1126.28 | USD | 20250829 |