| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chem | China national standards | MT | 957.01 | USD | 20250930 |
| Jinan Dezheng Chem | China national standards | MT | 957.01 | USD | 20250930 |
| Shaanxi Yanchang Petro | China national standards | MT | 957.01 | USD | 20250930 |
| Sinopec | China national standards | MT | 957.01 | USD | 20250930 |
| Lihuayi Shandong | China national standards | MT | 957.01 | USD | 20250930 |
| Shandong Jinwen Chem | China national standards | MT | 1196.26 | USD | 20250930 |
| Shandong Yushuo Chem | China national standards | MT | 971.08 | USD | 20250930 |
| Shandong Yushuo Chem | China national standards | MT | 971.08 | USD | 20250930 |
| Shandong Yushuo Chem | China national standards | MT | 971.08 | USD | 20250930 |
| Sinopec | China national standards | MT | 971.08 | USD | 20250930 |