| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinhao Chem | China national standards | MT | 1115.14 | USD | 20251029 |
| Shandong Yaoming Chem | China national standards | MT | 832.83 | USD | 20251029 |
| Shandong Yaoming Chem | China national standards | MT | 832.83 | USD | 20251029 |
| Wanhua Yantai | China national standards | MT | 846.94 | USD | 20251029 |
| Wanhua Yantai | China national standards | MT | 896.35 | USD | 20251029 |
| Shandong Kaitai Petro | China national standards | MT | 917.52 | USD | 20251029 |
| Jinan Aochen Chem | China national standards | MT | 988.1 | USD | 20251029 |
| Shandong Yihe Chem | China national standards | MT | 790.48 | USD | 20251029 |
| Shandong Langchem | China national standards | MT | 1058.68 | USD | 20251029 |
| Shandong Mingyu | China national standards | MT | 889.29 | USD | 20251029 |