| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Angxin Chem | China national standards | MT | 985.12 | USD | 20250925 |
| Shandong Yihe Chem | China national standards | MT | 1266.59 | USD | 20250925 |
| Shandong Xima | China national standards | MT | 872.54 | USD | 20250925 |
| Shandong Xima | China national standards | MT | 872.54 | USD | 20250925 |
| Shandong Qiangsen Chem | China national standards | MT | 886.61 | USD | 20250925 |
| Shandong Qiangsen Chem | China national standards | MT | 886.61 | USD | 20250925 |
| Shandong Fusheng | China national standards | MT | 886.61 | USD | 20250925 |
| Shandong Fusheng | China national standards | MT | 1097.71 | USD | 20250925 |
| Shandong Hualu | China national standards | MT | 985.12 | USD | 20250925 |
| Nanjing Guanshan Energy | China national standards | MT | 971.05 | USD | 20250925 |