| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 785.01 | USD | 20250814 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 784.86 | USD | 20250813 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 770.85 | USD | 20250813 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 770.11 | USD | 20250812 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 784.12 | USD | 20250812 |
| 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 | 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 | 770.5 | USD | 20250809 |