| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 1556.18 | USD | 20251211 |
| Shandong Zhiheng | China national standards | MT | 1554.7 | USD | 20251210 |
| Shandong Zhiheng | China national standards | MT | 1554.27 | USD | 20251209 |
| Shandong Zhiheng | China national standards | MT | 1554.46 | USD | 20251208 |
| Shandong Zhiheng | China national standards | MT | 1554.79 | USD | 20251205 |
| Shandong Zhiheng | China national standards | MT | 1555.14 | USD | 20251204 |
| Shandong Zhiheng | China national standards | MT | USD | 20251203 | |
| Shandong Zhiheng | China national standards | MT | USD | 20251202 | |
| Shandong Zhiheng | China national standards | MT | USD | 20251201 | |
| Shandong Zhiheng | China national standards | MT | USD | 20251128 |