| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Hualian Petro | China national standards | MT | 820.27 | USD | 20251103 |
| Zhenghe | China national standards | MT | 1015.8 | USD | 20251102 |
| Shaanxi Lufeng Chem | China national standards | MT | 740.69 | USD | 20251101 |
| Zhenghe | China national standards | MT | 1015.8 | USD | 20251031 |
| Dongying Hualian Petro | China national standards | MT | 825.76 | USD | 20251031 |
| Shandong Wonfull Petro | China national standards | MT | 842.27 | USD | 20251031 |
| Shaanxi Lufeng Chem | China national standards | MT | 742.27 | USD | 20251030 |
| Zhenghe | China national standards | MT | 1016.03 | USD | 20251030 |
| Shandong Wonfull Petro | China national standards | MT | 849.51 | USD | 20251030 |
| Shandong Wonfull Petro | China national standards | MT | 856.82 | USD | 20251029 |