| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.23 | USD | 20251106 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.08 | USD | 20251105 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.08 | USD | 20251105 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.15 | USD | 20251104 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.15 | USD | 20251104 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.22 | USD | 20251103 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.22 | USD | 20251103 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.17 | USD | 20251031 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.17 | USD | 20251031 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 282.23 | USD | 20251030 |