| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Aochen Chem | China national standards | MT | 746.41 | USD | 20251013 |
| Jinan Aochen Chem | China national standards | MT | 746.41 | USD | 20251013 |
| Jinan Jinhao Chem | China national standards | MT | 774.57 | USD | 20251013 |
| Jinan Jinhao Chem | China national standards | MT | 774.57 | USD | 20251013 |
| Shandong Zhongke Taihua | China national standards | MT | 943.57 | USD | 20251013 |
| Shandong Zhongke Taihua | China national standards | MT | 943.57 | USD | 20251013 |
| Shandong Zhongke Taihua | China national standards | MT | 943.57 | USD | 20251013 |
| Baozhen Shandong Chem | China national standards | MT | 760.49 | USD | 20251013 |
| Baozhen Shandong Chem | China national standards | MT | 760.49 | USD | 20251013 |
| Zibo Qixiang Chem | China national standards | MT | 760.49 | USD | 20251013 |