| Vendor | Spec | Unit | Price | Currency | Date |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 882.41 | USD | 20250804 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 881.17 | USD | 20250801 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 874.17 | USD | 20250801 |