| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 999.7 | USD | 20251014 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 999.9 | USD | 20251013 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 998.57 | USD | 20251009 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 998.75 | USD | 20250929 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 997.86 | USD | 20250928 |