| Vendor | Spec | Unit | Price | Currency | Date |
| Changzhou Qinghong Chemical Co., Ltd. | China national standards | MT | 132.71 | USD | 20251112 |
| Changzhou Qinghong Chemical Co., Ltd. | China national standards | MT | 121.3 | USD | 20251105 |
| Changzhou Qinghong Chemical Co., Ltd. | China national standards | MT | 121.32 | USD | 20251104 |
| Changzhou Qinghong Chemical Co., Ltd. | China national standards | MT | 110.07 | USD | 20251103 |
| Changzhou Qinghong Chemical Co., Ltd. | China national standards | MT | 105.87 | USD | 20251029 |
| Changzhou Qinghong Chemical Co., Ltd. | China national standards | MT | 105.85 | USD | 20251028 |
| Changzhou Qinghong Chemical Co., Ltd. | China national standards | MT | 105.81 | USD | 20251027 |
| Changzhou Qinghong Chemical Co., Ltd. | China national standards | MT | 105.74 | USD | 20251024 |
| Changzhou Qinghong Chemical Co., Ltd. | China national standards | MT | 105.76 | USD | 20251023 |
| Changzhou Qinghong Chemical Co., Ltd. | China national standards | MT | 105.7 | USD | 20251022 |