| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 875.13 | USD | 20251124 |
| Beijing Yanshan Petro | China national standards | MT | 1171.54 | USD | 20251124 |
| Shandong Langchem | China national standards | MT | 1115.08 | USD | 20251124 |
| Shandong Xima | China national standards | MT | 889.24 | USD | 20251124 |
| Shandong Langchem | China national standards | MT | 1115.08 | USD | 20251124 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1157.42 | USD | 20251124 |
| Qingdao Shengze Chem | China national standards | MT | 875.13 | USD | 20251124 |
| Shandong Langchem | China national standards | MT | 1100.96 | USD | 20251124 |
| Shandong Qiangsen Chem | China national standards | MT | 931.58 | USD | 20251124 |
| Beijing Yanshan Petro | China national standards | MT | 917.47 | USD | 20251124 |