| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 939.03 | USD | 20250813 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 938.14 | USD | 20250812 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 938.31 | USD | 20250811 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 938.61 | USD | 20250809 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 938.61 | USD | 20250808 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 939.1 | USD | 20250807 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 938.26 | USD | 20250806 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 938.82 | USD | 20250805 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 938.44 | USD | 20250804 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 937.12 | USD | 20250802 |