| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 980.46 | USD | 20250804 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 965.09 | USD | 20250801 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 979.08 | USD | 20250801 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 979.08 | USD | 20250801 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 979.08 | USD | 20250801 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 979.1 | USD | 20250731 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 965.12 | USD | 20250731 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 979.1 | USD | 20250731 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 979.1 | USD | 20250731 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 965.83 | USD | 20250730 |