| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 989.27 | USD | 20251201 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 989.27 | USD | 20251201 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 988.85 | USD | 20251128 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 988.85 | USD | 20251128 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 988.99 | USD | 20251127 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 988.99 | USD | 20251127 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 988.76 | USD | 20251126 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 988.76 | USD | 20251126 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 988.34 | USD | 20251125 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 988.34 | USD | 20251125 |