| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1147.45 | USD | 20250916 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1140.41 | USD | 20250916 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1140.41 | USD | 20250916 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1147.45 | USD | 20250916 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1146.98 | USD | 20250915 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1147.76 | USD | 20250909 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1147.42 | USD | 20250908 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1146.85 | USD | 20250906 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1146.85 | USD | 20250905 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1139.69 | USD | 20250901 |