| Vendor | Spec | Unit | Price | Currency | Date |
| Yibin Tianyuan Group Co., Ltd. | China national standards | MT | 2219.94 | USD | 20250422 |
| China national standards | MT | 350.0 | USD | 20210323 | |
| China national standards | MT | 410.0 | USD | 20210323 | |
| China national standards | MT | 390.0 | USD | 20210323 | |
| China national standards | MT | 410.0 | USD | 20210323 | |
| China national standards | MT | 380.0 | USD | 20210323 | |
| China national standards | MT | 420.0 | USD | 20210323 | |
| China national standards | MT | 340.0 | USD | 20210323 | |
| China national standards | MT | 390.0 | USD | 20210323 | |
| China national standards | MT | 390.0 | USD | 20210323 |