| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1141.92 | USD | 20250815 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1134.91 | USD | 20250815 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1142.46 | USD | 20250814 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1135.46 | USD | 20250814 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1142.26 | USD | 20250813 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1135.25 | USD | 20250813 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1134.17 | USD | 20250812 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1141.17 | USD | 20250812 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1141.38 | USD | 20250811 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1134.37 | USD | 20250811 |