| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Kunyu | China national standards | MT | 1032.74 | USD | 20251211 |
| Zibo Kunyu | China national standards | MT | 1031.76 | USD | 20251210 |
| Zibo Kunyu | China national standards | MT | 1031.47 | USD | 20251209 |
| Zibo Kunyu | China national standards | MT | 1031.6 | USD | 20251208 |
| Zibo Kunyu | China national standards | MT | 1031.82 | USD | 20251205 |
| Zibo Kunyu | China national standards | MT | 1032.05 | USD | 20251204 |
| Zibo Kunyu | China national standards | MT | 1243.04 | USD | 20251202 |
| Zibo Kunyu | China national standards | MT | 1243.66 | USD | 20251201 |
| Zibo Kunyu | China national standards | MT | 1243.13 | USD | 20251128 |
| Zibo Kunyu | China national standards | MT | 1243.01 | USD | 20251126 |