| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1016.72 | USD | 20251117 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1016.59 | USD | 20251115 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1016.59 | USD | 20251114 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1016.02 | USD | 20251113 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1016.48 | USD | 20251112 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1016.0 | USD | 20251111 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1016.15 | USD | 20251110 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1015.8 | USD | 20251031 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1016.03 | USD | 20251030 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1016.15 | USD | 20251028 |