| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1261.62 | USD | 20250814 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1261.39 | USD | 20250813 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1260.19 | USD | 20250812 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1260.42 | USD | 20250811 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1260.82 | USD | 20250809 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1260.82 | USD | 20250808 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1261.48 | USD | 20250807 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1260.35 | USD | 20250806 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1261.1 | USD | 20250805 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1260.59 | USD | 20250804 |