| Vendor | Spec | Unit | Price | Currency | Date |
| Sinopec | China national standards | MT | 777.35 | USD | 20251210 |
| Aite Zhejiang | China national standards | MT | 890.42 | USD | 20251210 |
| Wanhua Yantai | China national standards | MT | 897.49 | USD | 20251210 |
| Wanhua Chem | China national standards | MT | 1074.16 | USD | 20251210 |
| Sinopec | China national standards | MT | 777.35 | USD | 20251210 |
| Shandong Langchem | China national standards | MT | 1060.03 | USD | 20251210 |
| Sinopec | China national standards | MT | 777.35 | USD | 20251210 |
| Shandong Langchem | China national standards | MT | 989.36 | USD | 20251210 |
| Shandong Kaitai Petro | China national standards | MT | 890.42 | USD | 20251210 |
| Zhenghe | China national standards | MT | 890.42 | USD | 20251210 |