| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 762.11 | USD | 20251110 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 762.32 | USD | 20251107 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 776.44 | USD | 20251107 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 776.12 | USD | 20251106 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 762.01 | USD | 20251106 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 775.73 | USD | 20251105 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 761.63 | USD | 20251105 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 775.9 | USD | 20251104 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 761.8 | USD | 20251104 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 761.99 | USD | 20251103 |