| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1055.07 | USD | 20250918 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1055.94 | USD | 20250916 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1055.51 | USD | 20250915 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1056.06 | USD | 20250913 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1056.22 | USD | 20250909 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1055.91 | USD | 20250908 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1055.39 | USD | 20250906 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1055.39 | USD | 20250905 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1055.27 | USD | 20250901 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1055.89 | USD | 20250830 |