| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chem | China national standards | MT | 851.54 | USD | 20251011 |
| Shandong Langchem | China national standards | MT | 886.72 | USD | 20251011 |
| Shanghai Ronghe Chem | China national standards | MT | 788.2 | USD | 20251011 |
| Shandong Fusheng | China national standards | MT | 788.2 | USD | 20251011 |
| Shandong Yushuo Chem | China national standards | MT | 760.05 | USD | 20251010 |
| Shandong Yushuo Chem | China national standards | MT | 760.05 | USD | 20251010 |
| Jinan Aochen Chem | China national standards | MT | 745.97 | USD | 20251010 |
| Jinan Aochen Chem | China national standards | MT | 745.97 | USD | 20251010 |
| Jinan Jinrihe Chem | China national standards | MT | 717.82 | USD | 20251010 |
| Jinan Jinrihe Chem | China national standards | MT | 717.82 | USD | 20251010 |