| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 449.74 | USD | 20250928 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 449.74 | USD | 20250926 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 351.36 | USD | 20250926 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 449.74 | USD | 20250926 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 351.36 | USD | 20250926 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 351.83 | USD | 20250925 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 450.34 | USD | 20250925 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 351.83 | USD | 20250924 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 450.34 | USD | 20250924 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 351.83 | USD | 20250923 |