| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1143.0 | USD | 20251111 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1150.06 | USD | 20251111 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1143.16 | USD | 20251110 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1150.22 | USD | 20251110 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1143.49 | USD | 20251107 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1150.54 | USD | 20251107 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1150.07 | USD | 20251106 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1142.44 | USD | 20251105 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1149.49 | USD | 20251105 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1149.75 | USD | 20251104 |