| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chem | China national standards | MT | 817.73 | USD | 20251024 |
| Shandong Langchem | China national standards | MT | 1057.41 | USD | 20251024 |
| Shandong Langchem | China national standards | MT | 986.92 | USD | 20251024 |
| Shandong Langchem | China national standards | MT | 1142.0 | USD | 20251024 |
| Wanhua Yantai | China national standards | MT | 845.93 | USD | 20251024 |
| Wanhua Yantai | China national standards | MT | 895.27 | USD | 20251024 |
| Shandong Yaoming Chem | China national standards | MT | 831.83 | USD | 20251024 |
| Shandong Yaoming Chem | China national standards | MT | 831.83 | USD | 20251024 |
| Shandong Jinwen Chem | China national standards | MT | 986.92 | USD | 20251024 |
| Shandong Kaitai Petro | China national standards | MT | 916.42 | USD | 20251024 |