| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 974.08 | USD | 20251109 |
| Shandong Yihe Chem | China national standards | MT | 1270.54 | USD | 20251109 |
| Shandong Hualu | China national standards | MT | 1101.14 | USD | 20251109 |
| Qingdao Shengze Chem | China national standards | MT | 974.08 | USD | 20251108 |
| Qingdao Shengze Chem | China national standards | MT | 974.08 | USD | 20251108 |
| Shandong Daoqin Chem | China national standards | MT | 945.85 | USD | 20251108 |
| Shandong Yuxuan Chem | China national standards | MT | 988.2 | USD | 20251108 |
| Shandong Xima | China national standards | MT | 875.26 | USD | 20251108 |
| Shandong Qiangsen Chem | China national standards | MT | 889.38 | USD | 20251108 |
| Shandong Qiangsen Chem | China national standards | MT | 889.38 | USD | 20251108 |