| Vendor | Spec | Unit | Price | Currency | Date |
| Panjin Read Chemical Co., Ltd. | China national standards | MT | 873.34 | USD | 20250922 |
| Panjin Read Chemical Co., Ltd. | China national standards | MT | 873.07 | USD | 20250919 |
| Panjin Read Chemical Co., Ltd. | China national standards | MT | 873.6 | USD | 20250918 |