| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1270.02 | USD | 20251113 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1270.59 | USD | 20251112 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1270.0 | USD | 20251111 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1270.18 | USD | 20251110 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1270.54 | USD | 20251107 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1270.02 | USD | 20251106 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1269.38 | USD | 20251105 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1269.66 | USD | 20251104 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1269.98 | USD | 20251103 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1269.75 | USD | 20251101 |