| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Weiyuan Chem | China national standards | MT | 805.67 | USD | 20251205 |
| Beijing Yanshan Petro | China national standards | MT | 848.07 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1109.56 | USD | 20251205 |
| Shandong Qiangsen Chem | China national standards | MT | 932.88 | USD | 20251205 |
| Shandong Xima | China national standards | MT | 890.47 | USD | 20251205 |
| Lihuayi Weiyuan Chem | China national standards | MT | 862.2 | USD | 20251205 |
| Shandong Xingpeng Chem | China national standards | MT | 883.4 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1130.76 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1102.49 | USD | 20251205 |
| Lihuayi Weiyuan Chem | China national standards | MT | 876.34 | USD | 20251205 |