| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 437.39 | USD | 20251122 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 437.39 | USD | 20251122 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 437.39 | USD | 20251121 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 437.2 | USD | 20251120 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 437.41 | USD | 20251119 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 437.51 | USD | 20251118 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 430.39 | USD | 20251111 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 430.45 | USD | 20251110 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 430.57 | USD | 20251107 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 430.4 | USD | 20251106 |