| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 773.49 | USD | 20250922 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 773.25 | USD | 20250920 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 773.25 | USD | 20250919 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 773.72 | USD | 20250918 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 774.35 | USD | 20250916 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 774.35 | USD | 20250916 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 774.04 | USD | 20250915 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 773.96 | USD | 20250828 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 772.9 | USD | 20250825 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 771.16 | USD | 20250823 |