| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 776.9 | USD | 20251202 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 918.16 | USD | 20251202 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 918.61 | USD | 20251201 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 918.61 | USD | 20251201 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 777.29 | USD | 20251201 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 777.29 | USD | 20251201 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 918.22 | USD | 20251128 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 918.22 | USD | 20251128 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 776.96 | USD | 20251128 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 776.96 | USD | 20251128 |