| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Aite Chem | China national standards | MT | 1158.63 | USD | 20251209 |
| Shandong Langchem | China national standards | MT | 1247.65 | USD | 20251209 |
| Shandong Junfeng | China national standards | MT | 1130.52 | USD | 20251208 |
| Shandong Langchem | China national standards | MT | 1247.81 | USD | 20251208 |
| Shandong Yeyang Chem | China national standards | MT | 1271.83 | USD | 20251208 |
| Shandong Mingyu | China national standards | MT | 1130.52 | USD | 20251208 |
| Shandong Junfeng | China national standards | MT | 1130.76 | USD | 20251205 |
| Shandong Aite Chem | China national standards | MT | 1159.03 | USD | 20251205 |
| Shandong Mingyu | China national standards | MT | 1130.76 | USD | 20251205 |
| Shandong Langchem | China national standards | MT | 1248.07 | USD | 20251205 |