| Vendor | Spec | Unit | Price | Currency | Date |
| 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 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1055.89 | USD | 20250829 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1055.4 | USD | 20250828 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1054.73 | USD | 20250827 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1053.55 | USD | 20250826 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1053.95 | USD | 20250825 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1051.58 | USD | 20250823 |