| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Aite Chem | China national standards | MT | 1116.47 | USD | 20251201 |
| Shandong Zhiheng | China national standards | MT | 975.14 | USD | 20251201 |
| Shandong Chambroad | China national standards | MT | 1074.07 | USD | 20251201 |
| Sinopec | China national standards | MT | 1102.33 | USD | 20251201 |
| Shandong Changyi Petro | China national standards | MT | 741.96 | USD | 20251201 |
| Aite Zhejiang | China national standards | MT | 1017.54 | USD | 20251201 |
| Shandong Dongming Petro | China national standards | MT | 1879.62 | USD | 20251201 |
| Aite Zhejiang | China national standards | MT | 1017.54 | USD | 20251201 |
| Shandong Langchem | China national standards | MT | 975.14 | USD | 20251201 |
| CNPC | China national standards | MT | 847.95 | USD | 20251201 |