| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chem | China national standards | MT | 1099.68 | USD | 20251021 |
| Shandong Yeyang Chem | China national standards | MT | 1254.76 | USD | 20251021 |
| Shandong Junfeng | China national standards | MT | 1057.38 | USD | 20251021 |
| Shandong Junfeng | China national standards | MT | 930.49 | USD | 20251021 |
| Shandong Junfeng | China national standards | MT | 1057.38 | USD | 20251021 |
| Shandong Jinwen Chem | China national standards | MT | 1212.46 | USD | 20251021 |
| Shandong Langchem | China national standards | MT | 1395.74 | USD | 20251021 |
| Shandong Langchem | China national standards | MT | 1254.76 | USD | 20251021 |
| Shandong Langchem | China national standards | MT | 1261.81 | USD | 20251021 |
| Shandong Langchem | China national standards | MT | 1212.46 | USD | 20251021 |