| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1125.89 | USD | 20250930 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1125.35 | USD | 20250929 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1124.35 | USD | 20250928 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1125.86 | USD | 20250925 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1125.08 | USD | 20250922 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1124.73 | USD | 20250919 |