| Vendor | Spec | Unit | Price | Currency | Date |
| Shaanxi Yanchang Petro | China national standards | MT | 890.35 | USD | 20251201 |
| Jinan Qi Mat | China national standards | MT | 890.35 | USD | 20251201 |
| Shandong Hongyang Chem | China national standards | MT | 1194.19 | USD | 20251201 |
| Lihuayi Shandong | China national standards | MT | 1031.67 | USD | 20251201 |
| Sinopec | China national standards | MT | 890.35 | USD | 20251201 |
| Shandong Zhiheng | China national standards | MT | 1173.0 | USD | 20251201 |
| Sinopec | China national standards | MT | 890.35 | USD | 20251201 |
| CNPC | China national standards | MT | 1215.39 | USD | 20251201 |
| Zhangjiagang Zhaohe Trade | China national standards | MT | 936.98 | USD | 20251201 |
| Shandong Hongyang Chem | China national standards | MT | 1194.19 | USD | 20251201 |