| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1109.56 | USD | 20251205 |
| Shandong Aite Chem | China national standards | MT | 1243.83 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1116.62 | USD | 20251205 |
| Shandong Xingpeng Chem | China national standards | MT | 883.4 | USD | 20251205 |
| Beijing Yanshan Petro | China national standards | MT | 975.28 | USD | 20251205 |
| Qingdao Shengze Chem | China national standards | MT | 819.8 | USD | 20251205 |
| Shandong Xima | China national standards | MT | 890.47 | USD | 20251205 |
| Hubei 789 Chem | China national standards | MT | 989.41 | USD | 20251205 |
| Shandong Jinshenrun Chem | China national standards | MT | 975.28 | USD | 20251205 |
| Shandong Qiangsen Chem | China national standards | MT | 932.88 | USD | 20251205 |