| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 798.12 | USD | 20250812 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 798.26 | USD | 20250811 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 798.26 | USD | 20250811 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 798.52 | USD | 20250809 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 798.52 | USD | 20250809 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 798.52 | USD | 20250808 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 798.52 | USD | 20250808 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 798.93 | USD | 20250807 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 798.93 | USD | 20250807 |