| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 2040.62 | USD | 20250924 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 2040.62 | USD | 20250923 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 2040.62 | USD | 20250923 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 2039.21 | USD | 20250922 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 2039.21 | USD | 20250922 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 2038.58 | USD | 20250919 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 2038.58 | USD | 20250919 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 2039.81 | USD | 20250918 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 2039.81 | USD | 20250918 |