| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1018.59 | USD | 20251211 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1017.62 | USD | 20251210 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1017.11 | USD | 20251129 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1017.11 | USD | 20251128 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1017.25 | USD | 20251127 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1017.01 | USD | 20251126 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1015.87 | USD | 20251121 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1015.44 | USD | 20251120 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1015.92 | USD | 20251119 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1016.15 | USD | 20251118 |