| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1211.73 | USD | 20251020 |
| Shandong Langchem | China national standards | MT | 1261.04 | USD | 20251020 |
| Shandong Langchem | China national standards | MT | 1254.0 | USD | 20251020 |
| Shandong Langchem | China national standards | MT | 1394.9 | USD | 20251020 |
| Shandong Langchem | China national standards | MT | 1395.37 | USD | 20251017 |
| Shandong Langchem | China national standards | MT | 1254.42 | USD | 20251017 |
| Shandong Langchem | China national standards | MT | 1261.47 | USD | 20251017 |
| Shandong Langchem | China national standards | MT | 1212.14 | USD | 20251017 |
| Shandong Langchem | China national standards | MT | 1261.13 | USD | 20251016 |
| Shandong Langchem | China national standards | MT | 1254.09 | USD | 20251016 |