| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 718.1 | USD | 20251014 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 718.1 | USD | 20251014 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 718.24 | USD | 20251013 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 718.24 | USD | 20251013 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 717.28 | USD | 20251009 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 717.28 | USD | 20251009 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 731.48 | USD | 20250929 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 731.48 | USD | 20250929 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 730.83 | USD | 20250928 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 730.83 | USD | 20250928 |