| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai Guoke E-commerce Co., Ltd. | China national standards | MT | 485.53 | USD | 20250923 |
| Shanghai Guoke E-commerce Co., Ltd. | China national standards | MT | 485.19 | USD | 20250922 |
| Shanghai Guoke E-commerce Co., Ltd. | China national standards | MT | 485.04 | USD | 20250919 |