| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 762.11 | USD | 20251028 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 761.84 | USD | 20251027 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 775.95 | USD | 20251027 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 775.43 | USD | 20251025 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 761.34 | USD | 20251025 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 761.34 | USD | 20251024 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 775.43 | USD | 20251024 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 761.44 | USD | 20251023 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 775.54 | USD | 20251023 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 761.06 | USD | 20251022 |