| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1265.72 | USD | 20250922 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1139.14 | USD | 20250922 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1138.79 | USD | 20250920 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1265.32 | USD | 20250920 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1265.32 | USD | 20250919 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1138.79 | USD | 20250919 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1139.48 | USD | 20250918 |