| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1248.07 | USD | 20251205 |
| Shandong Mingyu | China national standards | MT | 1131.01 | USD | 20251204 |
| Shandong Aite Chem | China national standards | MT | 1159.29 | USD | 20251204 |
| Shandong Junfeng | China national standards | MT | 1131.01 | USD | 20251204 |
| Shandong Langchem | China national standards | MT | 1248.36 | USD | 20251204 |
| Shandong Yeyang Chem | China national standards | MT | 1272.39 | USD | 20251204 |
| Shandong Aite Chem | China national standards | MT | 1158.95 | USD | 20251203 |
| Shandong Yeyang Chem | China national standards | MT | 1272.01 | USD | 20251203 |
| Shandong Langchem | China national standards | MT | 1247.99 | USD | 20251203 |
| Shandong Junfeng | China national standards | MT | 1130.68 | USD | 20251203 |