| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 183.08 | USD | 20251013 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 182.84 | USD | 20251009 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 182.87 | USD | 20250929 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 185.52 | USD | 20250928 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 185.52 | USD | 20250926 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 185.77 | USD | 20250925 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 185.77 | USD | 20250924 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 182.83 | USD | 20250922 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 182.77 | USD | 20250919 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 182.88 | USD | 20250918 |