| Vendor | Spec | Unit | Price | Currency | Date |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2250.7 | USD | 20250902 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2251.24 | USD | 20250901 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2252.57 | USD | 20250829 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2250.1 | USD | 20250827 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2247.57 | USD | 20250826 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2248.42 | USD | 20250825 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2243.38 | USD | 20250822 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2241.4 | USD | 20250820 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2242.18 | USD | 20250819 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2243.35 | USD | 20250818 |