| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chem | China national standards | MT | 1042.15 | USD | 20251013 |
| Jinan Dezheng Chem | China national standards | MT | 1042.15 | USD | 20251013 |
| Shandong Mingyu | China national standards | MT | 1204.11 | USD | 20251013 |
| Shandong Mingyu | China national standards | MT | 1204.11 | USD | 20251013 |
| Shandong Mingyu | China national standards | MT | 1204.11 | USD | 20251013 |
| Shandong Mingyu | China national standards | MT | 1204.11 | USD | 20251013 |
| Shandong Jinling Chem | China national standards | MT | 1204.11 | USD | 20251013 |
| Shandong Mingyu | China national standards | MT | 1211.15 | USD | 20251013 |
| Shandong Mingyu | China national standards | MT | 1211.15 | USD | 20251013 |
| Nantong Zhonghe Chem | China national standards | MT | 1028.07 | USD | 20251013 |