| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Aochen Chem | China national standards | MT | 847.15 | USD | 20251125 |
| Shandong Wonfull Petro | China national standards | MT | 698.9 | USD | 20251125 |
| Zibo Qixiang Chem | China national standards | MT | 698.9 | USD | 20251125 |
| Shandong Wonfull Petro | China national standards | MT | 698.9 | USD | 20251125 |
| Jinan Jinrihe Chem | China national standards | MT | 698.9 | USD | 20251125 |
| Baozhen Shandong Chem | China national standards | MT | 748.31 | USD | 20251125 |
| Shandong Yushuo Chem | China national standards | MT | 776.55 | USD | 20251125 |
| Changzhou Qidi Chem | China national standards | MT | 727.13 | USD | 20251125 |
| Shandong Wonfull Petro | China national standards | MT | 847.15 | USD | 20251125 |
| Zibo Qixiang Chem | China national standards | MT | 847.15 | USD | 20251125 |