| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 769.31 | USD | 20251029 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 769.31 | USD | 20251029 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 769.17 | USD | 20251028 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 769.17 | USD | 20251028 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 768.89 | USD | 20251027 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 768.89 | USD | 20251027 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 768.38 | USD | 20251024 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 768.38 | USD | 20251024 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 768.49 | USD | 20251023 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 768.49 | USD | 20251023 |