| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 818.56 | USD | 20251110 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 818.79 | USD | 20251108 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 818.79 | USD | 20251107 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 818.46 | USD | 20251106 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 818.04 | USD | 20251105 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 818.23 | USD | 20251104 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 818.43 | USD | 20251103 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 818.28 | USD | 20251101 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 818.28 | USD | 20251031 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 818.47 | USD | 20251030 |