| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Mingyu | China national standards | MT | 1129.54 | USD | 20251114 |
| Shandong Langchem | China national standards | MT | 1246.73 | USD | 20251114 |
| Shandong Aite Chem | China national standards | MT | 1157.78 | USD | 20251114 |
| Shandong Mingyu | China national standards | MT | 1128.91 | USD | 20251113 |
| Shandong Yeyang Chem | China national standards | MT | 1270.02 | USD | 20251113 |
| Shandong Langchem | China national standards | MT | 1246.03 | USD | 20251113 |
| Shandong Junfeng | China national standards | MT | 1129.42 | USD | 20251112 |
| Jinan Pulaihua Chem | China national standards | MT | 1200.01 | USD | 20251112 |
| Shandong Langchem | China national standards | MT | 1246.59 | USD | 20251112 |
| Jinan Pulaihua Chem | China national standards | MT | 1200.01 | USD | 20251112 |