| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yeyang Chem | China national standards | MT | 1273.24 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1249.19 | USD | 20251211 |
| Shandong Junfeng | China national standards | MT | 1130.69 | USD | 20251210 |
| Shandong Yeyang Chem | China national standards | MT | 1272.03 | USD | 20251210 |
| Shandong Aite Chem | China national standards | MT | 1158.96 | USD | 20251210 |
| Shandong Langchem | China national standards | MT | 1248.0 | USD | 20251210 |
| Shandong Mingyu | China national standards | MT | 1130.69 | USD | 20251210 |
| Shandong Mingyu | China national standards | MT | 1130.37 | USD | 20251209 |
| Shandong Langchem | China national standards | MT | 1247.65 | USD | 20251209 |
| Shandong Junfeng | China national standards | MT | 1130.37 | USD | 20251209 |