| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhenkun | China national standards | MT | 607.7 | USD | 20251201 |
| Shandong Zhenkun | China national standards | MT | 607.44 | USD | 20251128 |
| Shandong Zhenkun | China national standards | MT | 607.44 | USD | 20251128 |
| Shandong Zhenkun | China national standards | MT | 607.52 | USD | 20251127 |
| Shandong Zhenkun | China national standards | MT | 607.38 | USD | 20251126 |
| Shandong Zhenkun | China national standards | MT | 607.12 | USD | 20251125 |
| Shandong Zhenkun | China national standards | MT | 606.94 | USD | 20251124 |
| Shandong Zhenkun | China national standards | MT | 606.7 | USD | 20251121 |
| Shandong Zhenkun | China national standards | MT | 606.7 | USD | 20251121 |
| Shandong Zhenkun | China national standards | MT | 606.45 | USD | 20251120 |