| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1115.43 | USD | 20251115 |
| Shandong Langchem | China national standards | MT | 1108.37 | USD | 20251115 |
| Qingdao Shengze Chem | China national standards | MT | 875.4 | USD | 20251115 |
| Shandong Qiangsen Chem | China national standards | MT | 931.87 | USD | 20251115 |
| Shandong Junfeng | China national standards | MT | 1058.95 | USD | 20251115 |
| Shandong Junfeng | China national standards | MT | 988.35 | USD | 20251115 |
| Shandong Langchem | China national standards | MT | 1129.54 | USD | 20251115 |
| Beijing Yanshan Petro | China national standards | MT | 917.76 | USD | 20251115 |
| Shandong Jinshenrun Chem | China national standards | MT | 988.35 | USD | 20251115 |
| Beijing Yanshan Petro | China national standards | MT | 1171.9 | USD | 20251115 |