| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| CNPC | China national standards | MT | USD | 20251212 | |
| Shandong Kenli Petro | China national standards | MT | USD | 20251212 | |
| Shandong Wonfull Petro | China national standards | MT | USD | 20251212 | |
| Dongying Shengda | China national standards | MT | USD | 20251212 | |
| Shandong Huaxing Petro | China national standards | MT | USD | 20251212 | |
| Dongying Hualian Petro | China national standards | MT | USD | 20251212 | |
| Shandong Shenchi Chem | China national standards | MT | USD | 20251212 | |
| Shandong Chambroad | China national standards | MT | USD | 20251212 | |
| Binzhou Dayou Energy | China national standards | MT | USD | 20251212 | |
| Dongying Haike | China national standards | MT | USD | 20251212 |
