| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiancheng | Industrial Grade | MT | 508.77 | USD | 20251201 |
| Shandong Qiancheng | China national standards | MT | 395.71 | USD | 20251201 |
| Shandong Qiancheng | 90% | MT | 395.54 | USD | 20251128 |
| Shandong Qiancheng | China national standards | MT | 1045.36 | USD | 20251128 |
| Shandong Qiancheng | China national standards | MT | 395.54 | USD | 20251128 |
| Shandong Qiancheng | Industrial Grade | MT | 508.55 | USD | 20251128 |
| Shandong Qiancheng | Industrial Grade | MT | 508.63 | USD | 20251127 |
| Shandong Qiancheng | China national standards | MT | 1045.51 | USD | 20251127 |
| Shandong Qiancheng | 90% | MT | 395.6 | USD | 20251127 |
| Shandong Qiancheng | China national standards | MT | 395.6 | USD | 20251127 |