| Vendor | Spec | Unit | Price | Currency | Date |
| Shaanxi Yanchang Petro | China national standards | MT | 918.74 | USD | 20251205 |
| Sinopec | China national standards | MT | 894.71 | USD | 20251205 |
| Zibo Lishuo Chem | China national standards | MT | 989.41 | USD | 20251205 |
| Shandong Xima | China national standards | MT | 975.28 | USD | 20251205 |
| Shandong Jinwen Chem | China national standards | MT | 1201.43 | USD | 20251205 |
| Zibo Lishuo Chem | China national standards | MT | 989.41 | USD | 20251205 |
| Shandong Yushuo Chem | China national standards | MT | 904.61 | USD | 20251205 |
| Shandong Laya Chem | China national standards | MT | 975.28 | USD | 20251205 |
| Jinan Qi Mat | China national standards | MT | 908.85 | USD | 20251205 |
| CNPC | China national standards | MT | 1215.56 | USD | 20251205 |