| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 990.3 | USD | 20251211 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 990.3 | USD | 20251211 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 989.36 | USD | 20251210 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 989.36 | USD | 20251210 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 989.08 | USD | 20251209 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 989.08 | USD | 20251209 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 989.2 | USD | 20251208 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 989.2 | USD | 20251208 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 989.41 | USD | 20251205 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 989.41 | USD | 20251205 |