| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Angxin Chem | China national standards | MT | 861.01 | USD | 20251124 |
| Shandong Qiangsen Chem | China national standards | MT | 988.04 | USD | 20251124 |
| Qingdao Shengze Chem | China national standards | MT | 825.72 | USD | 20251124 |
| Lihuayi Shandong | China national standards | MT | 889.24 | USD | 20251124 |
| Qingdao Shengze Chem | China national standards | MT | 825.72 | USD | 20251124 |
| Shandong Langchem | China national standards | MT | 1100.96 | USD | 20251124 |
| Aite Zhejiang | China national standards | MT | 1072.73 | USD | 20251124 |
| Shandong Laya Chem | China national standards | MT | 1002.16 | USD | 20251124 |
| Nanjing Runsheng Petro | China national standards | MT | 889.24 | USD | 20251124 |
| Qingdao Shengze Chem | China national standards | MT | 839.84 | USD | 20251124 |