| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 816.66 | USD | 20251014 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 816.82 | USD | 20251013 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 816.82 | USD | 20251013 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 816.35 | USD | 20251011 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 816.35 | USD | 20251011 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 816.35 | USD | 20251010 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 816.35 | USD | 20251010 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 815.73 | USD | 20251009 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 815.73 | USD | 20251009 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 816.27 | USD | 20250930 |