| Vendor | Spec | Unit | Price | Currency | Date |
| Zhenghe | China national standards | MT | 1017.04 | USD | 20251202 |
| Zibo Xintai Chem | China national standards | MT | 875.78 | USD | 20251202 |
| Shandong Wonfull Petro | China national standards | MT | 862.08 | USD | 20251201 |
| Zibo Xintai Chem | China national standards | MT | 876.21 | USD | 20251201 |
| Zhenghe | China national standards | MT | 1017.54 | USD | 20251201 |
| Dongying Hualian Petro | China national standards | MT | 846.96 | USD | 20251201 |
| Dongying Hualian Petro | China national standards | MT | 846.6 | USD | 20251128 |
| Shandong Wonfull Petro | China national standards | MT | 868.78 | USD | 20251128 |
| Zhenghe | China national standards | MT | 1017.11 | USD | 20251128 |
| Zibo Xintai Chem | China national standards | MT | 875.84 | USD | 20251128 |