| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinshenrun Chem | China national standards | MT | 713.69 | USD | 20251201 |
| Shijiaz Bailong Chem | China national standards | MT | 777.29 | USD | 20251201 |
| Tangshan Huayi | China national standards | MT | 890.35 | USD | 20251201 |
| Shandong Wonfull Petro | China national standards | MT | 847.95 | USD | 20251201 |
| Shandong Zhongke Taihua | China national standards | MT | 946.88 | USD | 20251201 |
| Shandong Shuojia Chem | China national standards | MT | 727.82 | USD | 20251201 |
| Baozhen Shandong Chem | China national standards | MT | 749.02 | USD | 20251201 |
| Shandong Zhongke Taihua | China national standards | MT | 946.88 | USD | 20251201 |
| Shandong QiFa Chem | China national standards | MT | 890.35 | USD | 20251201 |
| Zibo Qixiang Chem | China national standards | MT | 847.95 | USD | 20251201 |