| Vendor | Spec | Unit | Price | Currency | Date |
| Wuhan Hengjiu Chem | China national standards | MT | 844.42 | USD | 20251001 |
| Sinopec | China national standards | MT | 774.05 | USD | 20250930 |
| Sinopec | China national standards | MT | 731.83 | USD | 20250930 |
| CNPC | China national standards | MT | 724.79 | USD | 20250930 |
| Wuhan Hengjiu Chem | China national standards | MT | 844.42 | USD | 20250930 |
| Shandong Hongyang Chem | China national standards | MT | 886.64 | USD | 20250930 |
| Qingdao Chengxin Chem | China national standards | MT | 900.71 | USD | 20250930 |
| Sinopec | China national standards | MT | 745.54 | USD | 20250929 |
| CNPC | China national standards | MT | 738.51 | USD | 20250929 |
| Sinopec | China national standards | MT | 745.54 | USD | 20250929 |