| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chem | China national standards | MT | 933.17 | USD | 20251011 |
| Jinan Dezheng Chem | China national standards | MT | 933.17 | USD | 20251011 |
| Shandong Yuhuang Chem | China national standards | MT | 1196.37 | USD | 20251011 |
| Shaanxi Yanchang Petro | China national standards | MT | 1196.37 | USD | 20251011 |
| Sinopec | China national standards | MT | 1196.37 | USD | 20251011 |
| Jinan Jiaxing Chem | China national standards | MT | 1154.15 | USD | 20251011 |
| Beijing Yanshan Petro | China national standards | MT | 928.95 | USD | 20251011 |
| Lihuayi Shandong | China national standards | MT | 1111.92 | USD | 20251011 |
| Shandong Aite Chem | China national standards | MT | 1224.52 | USD | 20251011 |
| Sinopec | China national standards | MT | 1224.52 | USD | 20251011 |