| Vendor | Spec | Unit | Price | Currency | Date |
| Gansu Yongshengyuan Trading Co., Ltd. | China national standards | MT | 56.01 | USD | 20250812 |
| Gansu Yongshengyuan Trading Co., Ltd. | China national standards | MT | 68.68 | USD | 20250807 |
| Gansu Yongshengyuan Trading Co., Ltd. | China national standards | MT | 68.68 | USD | 20250807 |
| Gansu Yongshengyuan Trading Co., Ltd. | China national standards | MT | 68.62 | USD | 20250806 |
| Gansu Yongshengyuan Trading Co., Ltd. | China national standards | MT | 68.54 | USD | 20250801 |
| Gansu Yongshengyuan Trading Co., Ltd. | China national standards | MT | 68.54 | USD | 20250801 |
| Gansu Yongshengyuan Trading Co., Ltd. | China national standards | MT | 68.54 | USD | 20250731 |
| Gansu Yongshengyuan Trading Co., Ltd. | China national standards | MT | 68.54 | USD | 20250731 |
| Gansu Yongshengyuan Trading Co., Ltd. | China national standards | MT | 68.59 | USD | 20250730 |
| Gansu Yongshengyuan Trading Co., Ltd. | China national standards | MT | 68.59 | USD | 20250730 |