| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Aochen Chem | China national standards | MT | 846.79 | USD | 20251118 |
| Shandong Wonfull Petro | China national standards | MT | 846.79 | USD | 20251118 |
| Shijiaz Bailong Chem | China national standards | MT | 846.79 | USD | 20251118 |
| Hubei 789 Chem | China national standards | MT | 987.92 | USD | 20251118 |
| Hubei 789 Chem | China national standards | MT | 987.92 | USD | 20251118 |
| Shandong Qiangsen Chem | China national standards | MT | 804.45 | USD | 20251118 |
| Jinan Aochen Chem | China national standards | MT | 846.79 | USD | 20251118 |
| Tangshan Huayi | China national standards | MT | 889.13 | USD | 20251118 |
| Shandong Wonfull Petro | China national standards | MT | 776.22 | USD | 20251118 |
| Shandong QiFa Chem | China national standards | MT | 889.13 | USD | 20251118 |