| Vendor | Spec | Unit | Price | Currency | Date |
| Suzhou Xuehang New Materials Co., Ltd. | China national standards | MT | 1617.3 | USD | 20250922 |
| Suzhou Xuehang New Materials Co., Ltd. | China national standards | MT | 1616.8 | USD | 20250919 |
| Suzhou Xuehang New Materials Co., Ltd. | China national standards | MT | 1617.78 | USD | 20250918 |