| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 941.53 | USD | 20250825 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 939.41 | USD | 20250823 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 939.41 | USD | 20250822 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 939.86 | USD | 20250821 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 938.59 | USD | 20250820 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 938.91 | USD | 20250819 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 939.4 | USD | 20250818 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 938.76 | USD | 20250816 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 938.76 | USD | 20250815 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 939.2 | USD | 20250814 |