| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.07 | USD | 20251120 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.07 | USD | 20251120 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.2 | USD | 20251119 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.2 | USD | 20251119 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.26 | USD | 20251118 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.26 | USD | 20251118 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.42 | USD | 20251117 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.42 | USD | 20251117 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.39 | USD | 20251114 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.23 | USD | 20251113 |