| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Shengfeng | China national standards | MT | 966.26 | USD | 20250806 |
| Shandong Xima | China national standards | MT | 966.26 | USD | 20250806 |
| Shandong Qiangsen Chem | China national standards | MT | 938.26 | USD | 20250806 |
| Shandong Qiangsen Chem | China national standards | MT | 938.82 | USD | 20250805 |
| Shandong Xima | China national standards | MT | 966.85 | USD | 20250805 |
| Jinan Shengfeng | China national standards | MT | 966.85 | USD | 20250805 |
| Jinan Shengfeng | China national standards | MT | 966.45 | USD | 20250804 |
| Shandong Xima | China national standards | MT | 966.45 | USD | 20250804 |
| Shandong Qiangsen Chem | China national standards | MT | 938.44 | USD | 20250804 |
| Shandong Xima | China national standards | MT | 965.09 | USD | 20250802 |