| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Angxin Chem | China national standards | MT | 918.35 | USD | 20251127 |
| Beijing Yanshan Petro | China national standards | MT | 1172.66 | USD | 20251127 |
| Shandong Qiangsen Chem | China national standards | MT | 932.48 | USD | 20251127 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1158.54 | USD | 20251127 |
| Shanghai Guoke | China national standards | MT | 1282.87 | USD | 20251127 |
| Shandong Langchem | China national standards | MT | 1102.02 | USD | 20251127 |
| Shandong Hongyang Chem | China national standards | MT | 908.46 | USD | 20251127 |
| Lihuayi Weiyuan Chem | China national standards | MT | 918.35 | USD | 20251127 |
| Shandong Qiangsen Chem | China national standards | MT | 932.48 | USD | 20251127 |
| Shandong Shuojia Chem | China national standards | MT | 932.48 | USD | 20251127 |