| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 784.26 | USD | 20250811 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 770.25 | USD | 20250811 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 756.25 | USD | 20250811 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 770.5 | USD | 20250809 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 784.51 | USD | 20250809 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 784.51 | USD | 20250809 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 756.49 | USD | 20250809 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 784.51 | USD | 20250808 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 770.5 | USD | 20250808 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 756.49 | USD | 20250808 |