| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1250.84 | USD | 20250926 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1252.52 | USD | 20250925 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1252.52 | USD | 20250924 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1252.52 | USD | 20250923 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1251.65 | USD | 20250922 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1251.27 | USD | 20250920 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1251.27 | USD | 20250919 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1252.02 | USD | 20250918 |