| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 854.53 | USD | 20250820 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 854.83 | USD | 20250819 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 855.28 | USD | 20250818 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 854.69 | USD | 20250817 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 854.69 | USD | 20250816 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 854.69 | USD | 20250815 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 855.1 | USD | 20250814 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 854.94 | USD | 20250813 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 854.13 | USD | 20250812 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 854.28 | USD | 20250811 |