| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua Chem | China national standards | MT | 1072.73 | USD | 20251124 |
| Shandong Mingyu | China national standards | MT | 861.01 | USD | 20251124 |
| Sinopec | China national standards | MT | 790.44 | USD | 20251124 |
| Sinopec | China national standards | MT | 790.44 | USD | 20251124 |
| Sinopec | China national standards | MT | 790.44 | USD | 20251124 |
| Sinopec | China national standards | MT | 790.44 | USD | 20251124 |
| Shandong Langchem | China national standards | MT | 1143.31 | USD | 20251124 |
| Shandong Yeyang Chem | China national standards | MT | 818.67 | USD | 20251124 |
| Zibo Lishuo Chem | China national standards | MT | 846.9 | USD | 20251124 |
| Shandong Yihe Chem | China national standards | MT | 790.44 | USD | 20251124 |