| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1247.6 | USD | 20250814 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1247.37 | USD | 20250813 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1246.18 | USD | 20250812 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1246.41 | USD | 20250811 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1246.81 | USD | 20250809 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1246.81 | USD | 20250808 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1247.46 | USD | 20250807 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1246.34 | USD | 20250806 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1247.09 | USD | 20250805 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1246.59 | USD | 20250804 |