| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chem | China national standards | MT | 506.29 | USD | 20250922 |
| Lihuayi Weiyuan Chem | China national standards | MT | 604.73 | USD | 20250922 |
| Shandong Zhenkun | China national standards | MT | 604.73 | USD | 20250922 |
| Lihuayi Weiyuan Chem | China national standards | MT | 604.73 | USD | 20250922 |
| Shandong Zhenkun | China national standards | MT | 604.73 | USD | 20250922 |
| Lihuayi Weiyuan Chem | China national standards | MT | 520.35 | USD | 20250922 |
| Beijing Yanshan Petro | China national standards | MT | 520.35 | USD | 20250922 |
| Shandong Zhiheng | China national standards | MT | 632.86 | USD | 20250922 |
| Jinan Jinrihe Chem | China national standards | MT | 576.43 | USD | 20250921 |
| CNOOC | China national standards | MT | 576.43 | USD | 20250921 |