| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Wonfull Petro | China national standards | MT | 818.71 | USD | 20251029 |
| Shandong Qiangsen Chem | China national standards | MT | 804.6 | USD | 20251029 |
| Shandong Qiangsen Chem | China national standards | MT | 804.6 | USD | 20251029 |
| Changzhou Qidi Chem | China national standards | MT | 748.13 | USD | 20251029 |
| Changzhou Qidi Chem | China national standards | MT | 748.13 | USD | 20251029 |
| Shandong Zhongke Taihua | China national standards | MT | 945.75 | USD | 20251029 |
| Shandong Zhongke Taihua | China national standards | MT | 945.75 | USD | 20251029 |
| Shandong Zhongke Taihua | China national standards | MT | 945.75 | USD | 20251029 |
| Changzhou Jiaye Chem | China national standards | MT | 1157.49 | USD | 20251029 |
| Shandong Langchem | China national standards | MT | 889.29 | USD | 20251029 |