| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 812.51 | USD | 20250820 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 812.79 | USD | 20250819 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 813.21 | USD | 20250818 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 812.65 | USD | 20250815 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 813.04 | USD | 20250814 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 812.89 | USD | 20250813 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 812.12 | USD | 20250812 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 812.27 | USD | 20250811 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 812.53 | USD | 20250809 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 812.53 | USD | 20250808 |