| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | China national standards | MT | 1639.04 | USD | 20251209 |
| Shandong Langchem | China national standards | MT | 1186.89 | USD | 20251209 |
| Qingdao Shengze Chem | China national standards | MT | 1511.88 | USD | 20251209 |
| Shandong Yaoming Chem | China national standards | MT | 1080.92 | USD | 20251209 |
| Shandong Hongyang Chem | China national standards | MT | 1130.37 | USD | 20251209 |
| Shandong Mengkanda Chem | China national standards | MT | 1080.92 | USD | 20251209 |
| Dongying Lianchem | China national standards | MT | 1201.02 | USD | 20251209 |
| Shandong Langchem | China national standards | MT | 1175.59 | USD | 20251209 |
| Shandong Hongyang Chem | China national standards | MT | 1130.37 | USD | 20251209 |
| JS Yangnong Chem | China national standards | MT | 854.85 | USD | 20251209 |