| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langchem | China national standards | MT | 1301.53 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1336.9 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1336.9 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1301.53 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 1335.63 | USD | 20251210 |
| Shandong Langchem | China national standards | MT | 1300.3 | USD | 20251210 |
| Shandong Langchem | China national standards | MT | 1335.25 | USD | 20251209 |
| Shandong Langchem | China national standards | MT | 1299.93 | USD | 20251209 |
| Shandong Langchem | China national standards | MT | 1300.1 | USD | 20251208 |
| Shandong Langchem | China national standards | MT | 1335.42 | USD | 20251208 |