| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hualu | China national standards | MT | 268.08 | USD | 20260422 |
| Shandong Hualu | China national standards | MT | USD | 20260402 | |
| Anhui Liuguo Chemical | China national standards | MT | USD | 20260304 | |
| Shandong Hualu | China national standards | MT | USD | 20260302 | |
| Shandong Hualu | China national standards | MT | USD | 20260227 | |
| Shandong Hualu | China national standards | MT | USD | 20260213 | |
| Shandong Hualu | China national standards | MT | USD | 20260212 | |
| Shandong Hualu | China national standards | MT | USD | 20260210 | |
| Ruixing Corp | China national standards | MT | USD | 20260209 | |
| Shandong Hualu | China national standards | MT | USD | 20260209 |