| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.23 | USD | 20251113 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.35 | USD | 20251112 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.35 | USD | 20251112 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.22 | USD | 20251111 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.22 | USD | 20251111 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.26 | USD | 20251110 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.26 | USD | 20251110 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.34 | USD | 20251107 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.34 | USD | 20251107 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.23 | USD | 20251106 |