| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| Lianyungang Shenghong | China national standards | MT | USD | 20251231 | |
| CNPC | China national standards | MT | USD | 20251231 | |
| Shandong Kenli Petro | China national standards | MT | USD | 20251231 | |
| Dongying Shengda | China national standards | MT | USD | 20251231 | |
| Shandong Huaxing Petro | China national standards | MT | USD | 20251231 | |
| Dongying Hualian Petro | China national standards | MT | USD | 20251231 | |
| Shandong Chambroad | China national standards | MT | USD | 20251231 | |
| Binzhou Dayou Energy | China national standards | MT | USD | 20251231 | |
| Dongying Haike | China national standards | MT | USD | 20251231 | |
| Wanhua Chem | China national standards | MT | USD | 20251231 |
