| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 970.35 | USD | 20250827 |
| Shandong Langchem | China national standards | MT | 1061.77 | USD | 20250827 |
| Sinopec | China national standards | MT | 1089.89 | USD | 20250827 |
| Sinopec | China national standards | MT | 1096.92 | USD | 20250827 |
| Sinopec | China national standards | MT | 1096.92 | USD | 20250827 |
| Shandong Mengkanda Chem | China national standards | MT | 801.6 | USD | 20250827 |
| Qingdao Shengze Chem | China national standards | MT | 842.84 | USD | 20250826 |
| Shandong Xingpeng Chem | China national standards | MT | 842.84 | USD | 20250826 |
| Shandong Huize Chem | China national standards | MT | 835.82 | USD | 20250826 |
| Sinopec | China national standards | MT | 1088.67 | USD | 20250826 |