| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1246.19 | USD | 20251118 |
| Shandong Aite Chem | China national standards | MT | 1157.93 | USD | 20251117 |
| Shandong Yeyang Chem | China national standards | MT | 1270.9 | USD | 20251117 |
| Shandong Mingyu | China national standards | MT | 1129.69 | USD | 20251117 |
| Shandong Langchem | China national standards | MT | 1246.89 | USD | 20251117 |
| Shandong Junfeng | China national standards | MT | 1129.69 | USD | 20251117 |
| Shandong Junfeng | China national standards | MT | 1129.54 | USD | 20251115 |
| Shandong Yeyang Chem | China national standards | MT | 1270.74 | USD | 20251115 |
| Shandong Junfeng | China national standards | MT | 1129.54 | USD | 20251114 |
| Shandong Aite Chem | China national standards | MT | 1157.78 | USD | 20251114 |