| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 253.98 | USD | 20251119 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 253.98 | USD | 20251119 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 254.04 | USD | 20251118 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 254.04 | USD | 20251118 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 254.18 | USD | 20251117 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 254.18 | USD | 20251117 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 254.15 | USD | 20251114 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 254.0 | USD | 20251113 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 254.0 | USD | 20251113 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 254.12 | USD | 20251112 |