| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1328.14 | USD | 20250928 |
| Shandong Xima | China national standards | MT | 969.75 | USD | 20250928 |
| Shandong Xima | China national standards | MT | 969.75 | USD | 20250928 |
| Shandong Langchem | China national standards | MT | 1293.01 | USD | 20250928 |
| Shandong Qiangsen Chem | China national standards | MT | 1040.03 | USD | 20250928 |
| Shandong Jinwen Chem | China national standards | MT | 1194.63 | USD | 20250928 |
| Shandong Laya Chem | China national standards | MT | 969.75 | USD | 20250928 |
| Kunlun Daqing Petro | China national standards | MT | 1194.63 | USD | 20250928 |
| Beijing Yanshan Petro | China national standards | MT | 1215.71 | USD | 20250928 |
| CNPC | China national standards | MT | 1208.68 | USD | 20250928 |