| Vendor | Spec | Unit | Price | Currency | Date |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2225.75 | USD | 20250604 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2226.27 | USD | 20250603 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2226.92 | USD | 20250530 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2225.1 | USD | 20250529 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2225.5 | USD | 20250528 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2226.06 | USD | 20250527 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2227.39 | USD | 20250526 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2224.73 | USD | 20250523 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2225.22 | USD | 20250522 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2224.17 | USD | 20250521 |