| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei Seven Eight Nine Chemical Co., Ltd. | 37% | MT | 239.08 | USD | 20250922 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | 37% | MT | 239.08 | USD | 20250922 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | 37% | MT | 239.01 | USD | 20250919 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | 37% | MT | 239.01 | USD | 20250919 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | 37% | MT | 239.15 | USD | 20250918 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | 37% | MT | 239.15 | USD | 20250918 |