| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.78 | USD | 20251106 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.78 | USD | 20251106 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.67 | USD | 20251105 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.67 | USD | 20251105 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.72 | USD | 20251104 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.72 | USD | 20251104 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.78 | USD | 20251103 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.78 | USD | 20251103 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.73 | USD | 20251031 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 225.73 | USD | 20251031 |