| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1044.67 | USD | 20251108 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1044.67 | USD | 20251107 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1044.24 | USD | 20251106 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1043.71 | USD | 20251105 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1043.94 | USD | 20251104 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1044.21 | USD | 20251103 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1044.02 | USD | 20251101 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1044.02 | USD | 20251031 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1044.25 | USD | 20251030 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1044.56 | USD | 20251029 |