| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Yanshan Petro | China national standards | MT | 841.19 | USD | 20251204 |
| Lihuayi Weiyuan Chem | China national standards | MT | 1159.29 | USD | 20251204 |
| Shandong Junfeng | China national standards | MT | 989.64 | USD | 20251204 |
| Shiyou Yangzhou Chem | China national standards | MT | 841.19 | USD | 20251204 |
| Beijing Yanshan Petro | China national standards | MT | 909.05 | USD | 20251204 |
| Shandong Qiangsen Chem | China national standards | MT | 933.09 | USD | 20251204 |
| Shandong Junfeng | China national standards | MT | 1060.33 | USD | 20251204 |
| Shandong Langchem | China national standards | MT | 1131.01 | USD | 20251204 |
| Lihuayi Weiyuan Chem | China national standards | MT | 841.19 | USD | 20251204 |
| Shandong Zhiheng | China national standards | MT | 909.05 | USD | 20251204 |