| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.78 | USD | 20251030 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.78 | USD | 20251030 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.85 | USD | 20251029 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.85 | USD | 20251029 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.81 | USD | 20251028 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.81 | USD | 20251028 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.73 | USD | 20251027 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.73 | USD | 20251027 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.58 | USD | 20251024 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.58 | USD | 20251024 |