| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jiaxing Chem | China national standards | MT | 819.68 | USD | 20251201 |
| Shandong Dongming Petro | China national standards | MT | 932.74 | USD | 20251201 |
| Sinopec | China national standards | MT | 1074.07 | USD | 20251201 |
| Aite Zhejiang | China national standards | MT | 1017.54 | USD | 20251201 |
| Shandong Zhiheng | China national standards | MT | 975.14 | USD | 20251201 |
| Shandong Dongming Petro | China national standards | MT | 1879.62 | USD | 20251201 |
| Shandong Yaoming Chem | China national standards | MT | 741.96 | USD | 20251201 |
| Huizhou Jincheng Petro | China national standards | MT | 1102.33 | USD | 20251201 |
| Shandong Chambroad | China national standards | MT | 734.89 | USD | 20251201 |
| Shandong Jinwen Chem | China national standards | MT | 932.74 | USD | 20251201 |