| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 1167.62 | USD | 20250918 |
| Sinopec | China national standards | MT | 1209.82 | USD | 20250918 |
| CNPC | China national standards | MT | 1209.82 | USD | 20250918 |
| Shandong Hongyang Chem | China national standards | MT | 1188.72 | USD | 20250918 |
| Shandong Hongyang Chem | China national standards | MT | 1188.72 | USD | 20250918 |
| Zibo Lishuo Chem | China national standards | MT | 985.54 | USD | 20250916 |
| Zibo Lishuo Chem | China national standards | MT | 985.54 | USD | 20250916 |
| Zibo Lishuo Chem | China national standards | MT | 985.54 | USD | 20250916 |
| Zibo Lishuo Chem | China national standards | MT | 985.54 | USD | 20250916 |
| Zibo Lishuo Chem | China national standards | MT | 985.54 | USD | 20250916 |