| Vendor | Spec | Unit | Price | Currency | Date |
| Aite Zhejiang | China national standards | MT | 1019.8 | USD | 20251216 |
| Shandong Jinwen Chem | China national standards | MT | 934.82 | USD | 20251216 |
| Sinopec | China national standards | MT | 750.69 | USD | 20251216 |
| Shandong Hongyang Chem | China national standards | MT | 1133.11 | USD | 20251216 |
| Sinopec | China national standards | MT | 1076.46 | USD | 20251216 |
| Shandong Hongyang Chem | China national standards | MT | 1131.77 | USD | 20251211 |
| Shandong Chambroad | China national standards | MT | 735.65 | USD | 20251211 |
| Shandong Dongming Petro | China national standards | MT | 933.71 | USD | 20251211 |
| Shandong Yihe Chem | China national standards | MT | 806.38 | USD | 20251211 |
| Shandong Zhiheng | China national standards | MT | 976.15 | USD | 20251211 |