| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Chambroad Energy | China national standards | MT | 126.83 | USD | 20260106 |
| QiCheng Holdings | China national standards | MT | 112.58 | USD | 20260106 |
| Shandong Chambroad Energy | China national standards | MT | 126.83 | USD | 20260106 |
| QiCheng Holdings | China national standards | MT | 108.22 | USD | 20260105 |
| QiCheng Holdings | China national standards | MT | 108.22 | USD | 20260105 |
| Shandong Jincheng Petro | China national standards | MT | 110.97 | USD | 20260104 |
| Shandong SuperEnergy | China national standards | MT | 108.13 | USD | 20260104 |
| Shandong Jincheng Petro | China national standards | MT | 110.97 | USD | 20260104 |
| Shandong SuperEnergy | China national standards | MT | 108.13 | USD | 20260104 |
| Hebei Xinhai Chem | China national standards | MT | 125.09 | USD | 20251230 |