| Vendor | Spec | Unit | Price | Currency | Date |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2224.35 | USD | 20250520 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2224.82 | USD | 20250519 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2224.14 | USD | 20250516 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2223.36 | USD | 20250515 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2223.58 | USD | 20250514 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2222.5 | USD | 20250513 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2220.19 | USD | 20250512 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2219.29 | USD | 20250509 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2219.97 | USD | 20250508 |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2222.07 | USD | 20250507 |