| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 938.13 | USD | 20250725 |
| Jinan Shengfeng | China national standards | MT | 1036.14 | USD | 20250725 |
| Shandong Xima | China national standards | MT | 966.13 | USD | 20250725 |
| Shandong Xima | China national standards | MT | 966.59 | USD | 20250724 |
| Shandong Xima | China national standards | MT | 966.59 | USD | 20250724 |
| Shandong Xima | China national standards | MT | 966.59 | USD | 20250724 |
| Shandong Qiangsen Chem | China national standards | MT | 938.57 | USD | 20250724 |
| Jinan Shengfeng | China national standards | MT | 1036.63 | USD | 20250724 |
| Shandong Xima | China national standards | MT | 966.59 | USD | 20250724 |
| Shandong Xima | China national standards | MT | 966.59 | USD | 20250724 |