| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 886.54 | USD | 20250828 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 886.54 | USD | 20250828 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 885.98 | USD | 20250827 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 885.98 | USD | 20250827 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 884.98 | USD | 20250826 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 884.98 | USD | 20250826 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 885.32 | USD | 20250825 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 885.32 | USD | 20250825 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 883.33 | USD | 20250823 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 883.33 | USD | 20250823 |