| Vendor | Spec | Unit | Price | Currency | Date |
| Nantong Zhonghe Chem | China national standards | MT | 389.52 | USD | 20251028 |
| Shandong Hualu | China national standards | MT | 317.43 | USD | 20251027 |
| Nantong Zhonghe Chem | China national standards | MT | 389.39 | USD | 20251027 |
| Nantong Zhonghe Chem | China national standards | MT | 389.39 | USD | 20251027 |
| Shandong Yuxuan Chem | China national standards | MT | 324.49 | USD | 20251027 |
| Shandong Shuntian Chem | China national standards | MT | 310.38 | USD | 20251027 |
| Shandong Yuxuan Chem | China national standards | MT | 324.49 | USD | 20251027 |
| Shandong Yuxuan Chem | China national standards | MT | 324.27 | USD | 20251024 |
| Nantong Zhonghe Chem | China national standards | MT | 389.13 | USD | 20251024 |
| Shandong Shuntian Chem | China national standards | MT | 310.17 | USD | 20251024 |