| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| Shandong Mengkanda Chem | China national standards | MT | USD | 20250930 | |
| Shandong Qiancheng | China national standards | MT | USD | 20250930 | |
| Shandong Yushuo Chem | China national standards | MT | USD | 20250930 | |
| Jinan Dezheng Chem | China national standards | MT | USD | 20250930 | |
| CNPC | China national standards | MT | USD | 20250930 | |
| Lihuayi Shandong | China national standards | MT | USD | 20250930 | |
| Kunlun Daqing Petro | China national standards | MT | USD | 20250930 | |
| Qingdao Chengxin Chem | China national standards | MT | USD | 20250930 | |
| Luxi Chem | China national standards | MT | USD | 20250930 | |
| CNPC | China national standards | MT | USD | 20250929 |
