| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1030.13 | USD | 20251113 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1030.59 | USD | 20251112 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1030.11 | USD | 20251111 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1030.26 | USD | 20251110 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1030.55 | USD | 20251107 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1030.13 | USD | 20251106 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1029.6 | USD | 20251105 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1029.84 | USD | 20251104 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1030.1 | USD | 20251103 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1029.91 | USD | 20251031 |