| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 226.06 | USD | 20251127 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 226.06 | USD | 20251127 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 226.0 | USD | 20251126 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 226.0 | USD | 20251126 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.91 | USD | 20251125 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.91 | USD | 20251125 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.84 | USD | 20251124 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.84 | USD | 20251124 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.75 | USD | 20251121 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.75 | USD | 20251121 |