| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| Dongying Hualian Petro | China national standards | MT | USD | 20251216 | |
| Shandong Shenchi Chem | China national standards | MT | USD | 20251216 | |
| Shandong Chambroad | China national standards | MT | USD | 20251216 | |
| Binzhou Dayou Energy | China national standards | MT | USD | 20251216 | |
| Dongying Haike | China national standards | MT | USD | 20251216 | |
| Wanhua Chem | China national standards | MT | USD | 20251216 | |
| Dongying Yatong | China national standards | MT | USD | 20251216 | |
| Zibo Qixiang Chem | China national standards | MT | USD | 20251216 | |
| Shandong Qicheng | China national standards | MT | USD | 20251216 | |
| Dongying CNOOC | China national standards | MT | USD | 20251216 |
