| Vendor | Spec | Unit | Price | Currency | Date |
| CNPC | China national standards | MT | 2162.57 | USD | 20251205 |
| Lihuayi Shandong | China national standards | MT | 961.14 | USD | 20251205 |
| Qingdao Shengze Chem | China national standards | MT | 713.79 | USD | 20251205 |
| Shandong Xingpeng Chem | China national standards | MT | 727.93 | USD | 20251205 |
| Zibo Lishuo Chem | China national standards | MT | 918.74 | USD | 20251205 |
| CNPC | China national standards | MT | 2162.57 | USD | 20251205 |
| Shandong Qiangsen Chem | China national standards | MT | 819.8 | USD | 20251205 |
| Shandong Xingpeng Chem | China national standards | MT | 713.79 | USD | 20251205 |
| Luxi Chem | China national standards | MT | 791.53 | USD | 20251205 |
| Liaocheng Yuanze Chem | China national standards | MT | 862.2 | USD | 20251205 |