| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinhao Chem | China national standards | MT | 395.85 | USD | 20251204 |
| Shandong Jinling Chem | China national standards | MT | 452.41 | USD | 20251204 |
| Shandong Zhenkun | China national standards | MT | 303.87 | USD | 20251203 |
| Luxi Chem | China national standards | MT | 303.87 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 360.4 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 360.4 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 360.4 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 353.34 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 381.6 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 353.34 | USD | 20251203 |