| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1125.41 | USD | 20250918 |
| Jinan Angxin Chem | China national standards | MT | 991.77 | USD | 20250918 |
| Shanghai Guoke | China national standards | MT | 1277.34 | USD | 20250918 |
| Beijing Yanshan Petro | China national standards | MT | 1167.62 | USD | 20250918 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1153.55 | USD | 20250918 |
| Beijing Yanshan Petro | China national standards | MT | 1167.62 | USD | 20250918 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1153.55 | USD | 20250918 |
| Beijing Yanshan Petro | China national standards | MT | 1111.35 | USD | 20250918 |
| Shandong Zhiheng | China national standards | MT | 1111.35 | USD | 20250918 |
| Shandong Hongyang Chem | China national standards | MT | 1012.87 | USD | 20250918 |