| Vendor | Spec | Unit | Price | Currency | Date |
| Changzhou Dohow Chemical Co., Ltd. | China national standards | MT | 874.72 | USD | 20251031 |
| Changzhou Dohow Chemical Co., Ltd. | China national standards | MT | 874.92 | USD | 20251030 |
| Changzhou Dohow Chemical Co., Ltd. | China national standards | MT | 958.18 | USD | 20251016 |
| Changzhou Dohow Chemical Co., Ltd. | China national standards | MT | 957.81 | USD | 20251015 |
| Changzhou Dohow Chemical Co., Ltd. | China national standards | MT | 957.01 | USD | 20250930 |
| Changzhou Dohow Chemical Co., Ltd. | China national standards | MT | 956.55 | USD | 20250929 |
| Changzhou Dohow Chemical Co., Ltd. | China national standards | MT | 955.7 | USD | 20250928 |
| Changzhou Dohow Chemical Co., Ltd. | China national standards | MT | 955.7 | USD | 20250926 |
| Changzhou Dohow Chemical Co., Ltd. | China national standards | MT | 956.98 | USD | 20250925 |
| Changzhou Dohow Chemical Co., Ltd. | China national standards | MT | 956.98 | USD | 20250924 |