| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1015.79 | USD | 20251027 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1015.11 | USD | 20251024 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1015.09 | USD | 20251021 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1014.81 | USD | 20251017 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1014.54 | USD | 20251016 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1014.54 | USD | 20251016 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1013.78 | USD | 20251014 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1013.98 | USD | 20251013 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1013.4 | USD | 20251011 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1013.4 | USD | 20251010 |