| Vendor | Spec | Unit | Price | Currency | Date |
| Zhenghe | China national standards | MT | 1016.72 | USD | 20251117 |
| Zibo Xintai Chem | China national standards | MT | 847.27 | USD | 20251117 |
| Dongying Hualian Petro | China national standards | MT | 818.04 | USD | 20251117 |
| Shandong Wonfull Petro | China national standards | MT | 834.56 | USD | 20251117 |
| Zibo Xintai Chem | China national standards | MT | 861.28 | USD | 20251114 |
| Dongying Hualian Petro | China national standards | MT | 809.46 | USD | 20251114 |
| Zhenghe | China national standards | MT | 1016.59 | USD | 20251114 |
| Shandong Wonfull Petro | China national standards | MT | 828.8 | USD | 20251114 |
| Shaanxi Lufeng Chem | China national standards | MT | 797.65 | USD | 20251112 |
| Zhenghe | China national standards | MT | 1016.48 | USD | 20251112 |