| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 253.45 | USD | 20251014 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 253.5 | USD | 20251013 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 253.5 | USD | 20251013 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 253.35 | USD | 20251011 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 253.35 | USD | 20251011 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 253.35 | USD | 20251010 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 253.35 | USD | 20251010 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 253.16 | USD | 20251009 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 253.16 | USD | 20251009 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 253.32 | USD | 20250930 |