| Vendor | Spec | Unit | Price | Currency | Date |
| Changzhou Qinghong Chemical Co., Ltd. | China national standards | MT | 104.33 | USD | 20251021 |
| Changzhou Qinghong Chemical Co., Ltd. | China national standards | MT | 91.58 | USD | 20251020 |
| Changzhou Qinghong Chemical Co., Ltd. | China national standards | MT | 91.62 | USD | 20251017 |
| Changzhou Qinghong Chemical Co., Ltd. | China national standards | MT | 91.56 | USD | 20251015 |
| Changzhou Qinghong Chemical Co., Ltd. | China national standards | MT | 91.52 | USD | 20251014 |
| Changzhou Qinghong Chemical Co., Ltd. | China national standards | MT | 91.54 | USD | 20251013 |
| Changzhou Qinghong Chemical Co., Ltd. | China national standards | MT | 91.49 | USD | 20251011 |
| Changzhou Qinghong Chemical Co., Ltd. | China national standards | MT | 91.49 | USD | 20251010 |
| Changzhou Qinghong Chemical Co., Ltd. | China national standards | MT | 91.42 | USD | 20251009 |
| Changzhou Qinghong Chemical Co., Ltd. | China national standards | MT | 91.48 | USD | 20250930 |