| Vendor | Spec | Unit | Price | Currency | Date |
| Guangxi Tiandong Jinyi Technology Co., Ltd. | China national standards | MT | 492.34 | USD | 20250929 |
| Guangxi Tiandong Jinyi Technology Co., Ltd. | China national standards | MT | 492.07 | USD | 20250919 |
| Guangxi Tiandong Jinyi Technology Co., Ltd. | China national standards | MT | 492.77 | USD | 20250916 |
| Guangxi Tiandong Jinyi Technology Co., Ltd. | China national standards | MT | 492.9 | USD | 20250909 |
| Guangxi Tiandong Jinyi Technology Co., Ltd. | China national standards | MT | 492.46 | USD | 20250901 |
| Guangxi Tiandong Jinyi Technology Co., Ltd. | China national standards | MT | 490.48 | USD | 20250819 |