| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1266.62 | USD | 20250930 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1266.02 | USD | 20250929 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1266.02 | USD | 20250929 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1264.9 | USD | 20250928 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1264.9 | USD | 20250928 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1264.9 | USD | 20250926 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1264.9 | USD | 20250926 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1266.59 | USD | 20250925 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1266.59 | USD | 20250925 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1266.59 | USD | 20250924 |