| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.25 | USD | 20250804 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.1 | USD | 20250802 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.1 | USD | 20250801 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.11 | USD | 20250731 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.18 | USD | 20250730 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.08 | USD | 20250729 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.15 | USD | 20250728 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.21 | USD | 20250726 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.21 | USD | 20250725 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 102.26 | USD | 20250724 |