| Vendor | Spec | Unit | Price | Currency | Date |
| Sinopec | China national standards | MT | 732.26 | USD | 20250917 |
| Sinopec | China national standards | MT | 612.56 | USD | 20250917 |
| Shandong Qiangsen Chem | China national standards | MT | 506.85 | USD | 20250916 |
| Qingdao Shengze Chem | China national standards | MT | 542.05 | USD | 20250916 |
| Qingdao Shengze Chem | China national standards | MT | 542.05 | USD | 20250916 |
| Qingdao Shengze Chem | China national standards | MT | 542.05 | USD | 20250916 |
| Qingdao Shengze Chem | China national standards | MT | 542.05 | USD | 20250916 |
| Jinan Qiwei Chem | China national standards | MT | 599.77 | USD | 20250916 |
| Qingdao Shengze Chem | China national standards | MT | 542.05 | USD | 20250916 |
| Qingdao Shengze Chem | China national standards | MT | 542.05 | USD | 20250916 |